5w40 vs 15w40 cummins

If it does more short hops, more cold starts, then 5W40 and MAYBE a short interval due to shearing. 96 F250 PS XLT 4X4 long box, 5sp,4.10, manual hubs,pyro+boost guages, Dark Toumaline, add a leaf, Dale's TYMAR, and HX hose, downpipe, coolant filter, Luk clutch. Getting the right motor oil and the best value both play a role in managing preventive maintenance and expenses. Most car owners don’t even bother with the issue of an oil change for their vehicles. Cummins approved for my 2013 RAM. View on Amazon. Ever seen 15w40 dino oil at sub zero temps, its like molasses, compare it to synthetic 5w40, that's why it takes time for the oil pressure to move. I have a 1999 Monaco Signature 45’ Class A. Buy Royal Purple 15W40 Oil. You should have no problems with it. That is always a good indicator as well. 99.5 f250 7.3 4x4- 295k FF 160/30, PHP Hydra, S&B CAI, 4" Exhaust, RR 6/6 billet wheel/KC S300 turbine wheel/1.0 turbine housing, Autometer Gauges, Built Trans, Trucool Max, 08 Tow Mirrors. ... Grand Rapids, MN. I haven’t filled it with oil yet, but want to run synthetic and do EOC. It looks like only the 15w40 is registered with the API's site. Valvoline™ Premium Blue™ is “The Only One”™ solely endorsed and suggested by Cummins. A $20 oil analysis kit is a LOT cheaper than 14 gallons of synthetic oil!!!!!!! Valvoline Premium Blue Extreme SAE 5W-40 Synthetic Engine Oil 4. Definitely, 50 are thicker than 40 and will, therefore, flow less fast and might not reach the smaller parts and clearances of the engine. Wading through the combination of marketing spin, specifications, and technical information can make understanding which product to use and finding the best value in motor oil a challenge. The 5 means that the oil will flow at zero celsius the same way a 5-weight oil would. Improved fuel economy potential over conventional 15W-40 oils; Valvoline™ Premium Blue™ has a unique 10,000 mile drain extension in Cummins® X15 engines enabling up to 60,000 miles when average fuel efficiency is 6.5 mpg or higher; Enhanced protection against oil oxidation If you hop in that baby and take off for Slambamtaconga 1,000 miles away, a single cold start to do that is irrelevant. viscosity table and viscosity chart, you will see a slight difference of the 15w-40 having better density and kinetic viscosity over a 5w-40. amsoil. BD CCV filter. It's fine to switch between the 2 weights. Valvoline™ Premium Blue™ is “The Only One”™ solely endorsed and suggested by Cummins. Thanks for the info Ken. Works great! Are all mentioned in this video. Improved Wear Performance. It can assist better with cold starting. They are designed to provide excellent protection against oxidatio Many millions of miles logged on the old N14 engines using nothing but conventional 15w40. for gas and diesel engines) combined SF/SD API specs. At the same time, I saw one of Cummins' earliest Model H engines of 1934, which is the direct core ancestor of the N14. I really depends upon where you live. I'm pretty sure you won't find a full synthetic in 15w40. Just run 15w40. AMSOIL INC. has been collecting used synthetic oil samples from passenger cars since 1982. But you can also pick another variant from the line such as the cheaper and more common 15W40 depending on the condition where you will be driving the vehicle. The 2019 CGI Cummins doesn't call for 15W40 at all. 6.0 Transmission Cooler. As mentioned above, I prefer lower weight oils due to the increased fuel economy, but never having a diesel before, why would even AMSOIL say the 15W-40 is preferred above 32 deg. One of the most important things that you need to know about 6.7 Cummins synthetic oil is that the different viscosity ratings provide various levels of performance, specifically in relation to temperature. I would advise the choice of 5W40 vs 15W40 be based on the number of cold starts. 10w40 vs 5w40 which one is better for your Car? This replaces the inexpensive and less shear stable V.I. I don’t think I’ll put more than 20k per year anyway. We then utilize a blend of synthetic basestocks with known performance characteristics as a replacement for the petroleum basestocks to optimize performance in areas of lubricity, volatility, viscosity index, oxidation and nitration resistance, pour points, flash points, deposit control, soot handling, emissions, etc. Better Fuel Economy. JavaScript is disabled. 1994 F-350 7.3 IDI Turbo, crew cab, E4OD,4:10 L/S, LB, Dually. I can’t find anyone who has run the 5W40 in that engine, hence my concerns. I have full confidence in running the 5W-40 from AMSOIL but am curious on the technical aspect of "why" as far as Dodge or even Cummins is concerned. Factory fill from Cummins is Valvoline premium Blue 5w40 full synthetic because they don't know what climate they will be operating in. My only synthetic option is the Rotella T6 5W-40. A 5w-40 synthetic and a 15w-40 conventional are both 40 WEIGHT oils. I hate wasting good oil just because it’s been. Oil can't read a calendar so my advice is forget the "one year" stuff. AMSOIL Inc.'s products and formulations outperform API licensed oils. However it seems that everyone wants to use 10W30 in the 6.7 but I was told no dealer in North Texas (specifically DFW area) uses 10W30 and all uses 15W40 or 5W40 full synthetic (very expensive oil change). John Wood's valve body. 5W40 didn't exist then. Bronchi Combustibili distributore autorizzato. For a better experience, please enable JavaScript in your browser before proceeding. That was based on my reading regarding synthetics since they have a higher TBN. My plan was to go as long as possible using analysis. N-14 failures were usually coolant or fuel related, never oil related. 5W40 Synthetic VS regular 15W40. The cold mornings (low 30s) made the starts rather rough. I do not believe the way guys are going nuts in here over a 5w-40 evaporating, and burning because its thinner, is funny, as it does get to a 40 weight with heat. Am doing a story for, Heavy Duty Engine Oil (HDEO) - Diesel Vehicles, will run forever and ever on the cheapest 15W-40. Rotella. For the price of synthetic vs dino oil and the fact I go longer, add on better engine protection etc, its a winner for me. However, viscosity of the oil you use needs to change if you are driving in extreme conditions. JavaScript is disabled. You don't need it for the winter weather starting obviously but I would feel more comfortable with the synthetic going 20k miles with the bypass filter setup. The N-14 is not hard on oil AT ALL! Back to the number of cold starts, if you have to start the MH regularly in cold weather, that's when the 5W40 is more indicated because cold starts with thick oil tend to be the ones with more wear, more filter bypass events, etc. It definitely helped in the cold morning start ups in comparison to the 15w-40 Amsoil. Finally, look up what oils the latest version of the N14 were authorized to use. The Premium Blue brand offers a full lineup of conventional, synthetic blend, and synthetic engine oils developed for diesel, gas, and natural gas engine applications. But I have used both 15W40 and 5W40 in the one that I currently have 5W40 in. Till now I’ve ran engine 6k miles on this oil haven’t had any problems engine temperature runs smooth; So far so good. Use 5W40, test every 5K (or one year) or so. I hate wasting good oil just because it’s been a year. 5W-40 all things equal is inferior to a 15W-40 due to the thinner base oil blend and the viscosity improvers needed. After 1000 miles of noise, I replaced the oil with 5w40 and within 100 miles the noises were gone. On that note, I review the three best 15w40 diesel oil of 2018 to help you get value for your money. Valvoline/Cummins Premium Blue 15W40 Union 76 Guardol QLT 15W40 Union 76 T5X Heavy Duty 15W-40 Kendall Super-D 3 15W40, 10W30 Quaker State FCI HDX Plus 15W40 Exxon XD-3 Extra 15W40 Phillips 66 Super HD II 15W-40 Conoco HD Fleet Supreme 15W-40, 10W-30 Citgo Mystik Premium Fleet 15W-40 Citgo Mystik JT-8 15W-40, 15W-50, 10W-30 Definitely going back to the dino 15w40 after this one, It's been proven to last forever in the Powerstrokes. 280k on 15w40 and no internal problems. Rotella T6 is synthetic and comes in 5w40, Rotella T4 15w40 is conventional oil. Or Mobil Delvac MX. Use 5W40, test every 5K (or one year) or so. ... 2014 Ram 1500 ecodiesel, 2014 Ram 1500 5.7, 2009 Ram 2500 Cummins 6.7, 2006 Ram 2500 Cummins 5.9, 2005 Ram 3500 Cummins 5.9, 1999 Ram 3500 Cummins 5.9, 1995 Ram 1500 360, 1983 Ram D150 318, 1975 Ram D150 360. Few things: Most diesels are also turbo-charged, which means that they compress a much larger volume of air and suspended particles. Royal Purple 15W40 Oil The 15w40 would be just fine. Le test a pour but de montrer comment efficacement Test frictiomètre 15w40 mineral carrefour Diesel - 2l (acheté en 2019) ENGINE SOUND TEST Mineral 15w-40 vs Synthetic Oil 5W40 Shell Helix Ultra - Prueba Sonido Motor. Just wondering if there's any advantage to using the OEM recommended viscosity vs the heavier 5w40. That opinion is based on operating a variety of equipment that never reaches the miles or hours limits within one year. That being said and as mentioned … What would cause the increase in engine clatter. If you are set up to sample, you can conduct your own test. I think with UOA and the bypass filter, I’m hopeful. 5W30 vs. 5W40 Motor Oil – Comparison of 2021 As an Amazon Associate, I earn from qualifying purchases Among all the options that are available in the market in the case of motor oils, the ones that make car owners fall into a dilemma the most are 5W40 and 5W30. You'll find an informative tech area, a place for Member’s Journals, Vendors with Special Members Pricing, Plus More! It may not display this or other websites correctly. Mostly just hate wasting 14 gallons of oil when I don’t need to. 00 ($11.58/case of oil) I run 5w-40 in every climate from below 0 to 100+F temps. Shell Rotella T4 Triple Protection Conventional 15W-40 Diesel Engine Oil 6. CaptTom: Remember the "chartlet" is from 1986. Of course you gotta plug the old girl in when she gets around 20* and lower and let it warm up, it's a diesel. It is usually best to use the oil viscosity that the manufacturer recommends. These additives have already passed all of the API licensing requirements in a petroleum or synthetic based formulation. Exactly how many miles are you thinking of running the oil? The Synthetic 5w-40 just says that the 40 weight oil will maintain a 40 weight viscosity down to 5 degrees vs. 15 degrees for the conventional. The only advantage the 5w- will buy you is below freezing starts. to develop an API-rated 100 percent synthetic motor oil, back in 1972. Then you will know ... and learn something on the way. Even 15W40 was relatively new in 1986. We do laboratory bench tests before running field tests to verify the superiority of the synthetic formula in actual use. improver used in the API licensed petroleum formula. So the owner's manual in my 2015 Ram says to use 15W40 oil in the 6.7 Cummins diesel, unless the temp is going to routinely be below 0*, in which case you should use 5W40. My limit is set at four years but seldom does anything get out that far except for one truck, which is due for a change this year after four years and about 5,000 miles. The manual calls for 14 gallons. My rancher neighbor runs two 5.9's, I think 2004 and a 2006. Truck is an old school IDI diesel with bypass filtration. Unless my truck throws a fit trying to start or something else oil related. If you go to Engine oil ? Then you will know ... and learn something on the way. Example, 5 = 5 degrees w=Winter. Maybe you can turn up some trustworthy evidence out there in posted UOAs. Valvoline Premium Blue Classic if it's still available. Cummins CES 20071, 20072, 20076, 20077, 20078, First, AMSOIL INC. works closely with major additive companies to select the top performing, and usually most expensive, passenger car and heavy duty diesel motor oil additives. vs… Approved or Recommended for applications where Cummins CES 20086, Mack EOS-4.5, Volvo VDS-4.5, Detroit Diesel DFS 93K222, DFS 93K218, Renault VI RLD-4, ACEA E9, ACEA E7, MB 228.31, Ford WSS-M2C171-F1, Caterpillar ECF-3, or Chrysler MS-10902 are specified My last oil change I switched to Shell Rotella Syntehtic 5w40. Come join the discussion about PowerStrokes, performance, modifications, troubleshooting, towing capacity, maintenance, and more! Despite being in Arizona, I don’t live at the lower elevations. Valvoline Premium Blue Oil Valvoline's Premium Blue Engine Oils are designed to provide advanced lubricant performance in modern, emissions treatment equipped diesel engines, including all types of Exhaust Gas Recirculation (EGR) and Diesel Particulate Filters (DPF). IH Bellowed Up-Pipes, RiffRaff AIH delete plug, Riffraff FRx Kit. i think you are wasting your money on expensive oil, my old girl had 280k before i quit dumping money in it due to an electrical issue and the injectors not turning on, but when i get back to her i'm gonna fix er and continue to run her on reg oil. Then we work with the additive company to. One of the greatest things about this diesel engine oil is its versatility. 15W40 oil changes less with change in temperature. Will update when I change the oil next time. improver to ensure viscosity retention throughout extended drain intervals. If you are set up to sample, you can conduct your own test. If they recommend 10–40, then use 10–40. i just switched mine over to amsoil 5w40 diesel synthetic havent gotten enough miles put on it since then to decide if its any better than the hvyduty diesel and marine 15w40 amsoil, Correct. Over the last 15 years or so I have UOA at one year, two, years, three years and found no issues. here in south dakota the ford dealer has me and our company using 10w-30 diesel oil in all of our powerstrokes 7.3, 6.0, 6.4 year around and have no complaints or problems. Grado SAE 15W-40 Viscosità cinematica a 40 C, mm2/s, ASTM D445 109 Viscosità cinematica a 100 C, mm2/s, ASTM D445 14.1 Indice di viscosità, ASTM D2270 130 Densità @ 15 C, g/ml, ASTM D1298 0.875 Pour Point, °C, ASTM D97 -33 Trying to see if it is a critical thing that I switch to a different oil. I know of owners in Texas that run the 5w40 year round. If the 5W40 doesn't hold up, you can switch to 15W40 with confidence. Usuall the 5w40 is a synthetic and the 15w40 is dino but can be synthetic. T6 will take you to 20K with by-pass easy as pie. Usuall the 5w40 is a synthetic and the 15w40 is dino but can be synthetic. No worries. Why I use certain oil. We also will utilize a highly shear stable V.I. Data Sheet on Shear Stability of our 5W-40 and fuel economy, AMSOIL Heavy Duty Diesel and Marine CI-4 (AME), Buy Online at Wholesale Factory-Direct - Click Here, AMSOIL Premium CJ-4 Synthetic 5W-40 Diesel Oil (DEO), AMSOIL Premium CJ-4 Synthetic 15W-40 Diesel Oil (DME), AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil (AME), http://eolcs.api.org/DisplayLicenseInfo.asp?LicenseNo=0995, Synthetic Blend 15W-40 Heavy Duty Motor Oil (PCO), AMSOIL OE 15W-40 Synthetic Diesel Oil (OED), AMSOIL OE 10W-30 Synthetic Diesel Oil (OEC), 99 & up 7.3L Power Stroke Engine & Drivetrain, 99 & up Upgrades and Aftermarket - 7.3L Engine, 7.3L IDI Diesels (Not Powerstrokes) 1988-1993, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Best 15w40 diesel oil of 2018. You are using an out of date browser. F. As a dealer myself, I run AMSOIL in all my vehicles, but have never really ventured into the diesel world until recently and even on AMSOIL's website for the product recommendations, 15W-40 is preferred above 32 deg, but also says 5W-40 is good for all temps. 10000 miles is the normal change interval. I'm sure that ol Cummins will love the Rotella 5W40 either way. ( 10w 40 vs 5w 40) 5w40 vs 10w40. They're engineered that way. Uniquely formulated heavy duty engine oil to provide enhanced lubricant performance in a wide range of Cummins diesel engines and specially designed to support longer drain intervals in … Temperatures or extended drains, maybe, but there are many, many UOA that prove that a conventional will do just as well as a full synthetic, depending on application. Valvoline 5W-40 Full Synthetic Diesel Engine Oil. Whether you’re looking to upgrade your comfort, style, or accessibility, we have picks to fit a variety of needs and budgets. You'll be fine with either. Just added a FS2500 bypass filter plus the factory Fleetguard FF filter. If you're attempting extended drain intervals then yes you should use synthetic, and you should being that you've went to the expense and trouble to install a bypass filter setup.How many gallons of oil does the N14 hold? If your only synthetic option is T6 in 5w40 then run it if you are dead set on extended drains. For a better experience, please enable JavaScript in your browser before proceeding. Most people may run a 5W-40 in the winter, or year round. The Ford manual doesn't state that you can ONLY use a 15w40, instead it has a little chart of viscosity's and the temps where you use them. Differences between 5w40 vs. 5w50 motor oil. I figure with the bypass filter I should be able to easily go 20,000 miles. Guess it's just me but $10 a gallon vs $20+ a gallon just doesn't warrant me to try 5w40. I live at 8000 FT ASL, I’d love to go that long! The following is a breakdown of motor oil […] The oil viscosity's go by temperature. Royal Purple 15W40 Oil. Reply. Year. Used in my 2015 Ram 2500. I ran synthetic 15w40 in my truck until I reached 33,000 miles. Any issues with running 5W40? 5w40 vs 15w40 IGOTACUMMINS is an online community for all Cummins Turbo Diesel enthusiasts. However it seems that everyone wants to use 10W30 in the 6.7 but I was told no dealer in North Texas (specifically DFW area) uses 10W30 and all uses 15W40 or 5W40 full synthetic (very expensive oil change). The N14 was built to 2002 and I have seen the last N14 engine that rolled off the line. We were freezing up until about a week ago. Do a simple oil sample every 10,000 miles if you are worried (a good sample test like Polaris or Blackstone...not a table top unit at a Speedco or truck dealership) but you should EASILY be able to go 25,000 miles on regular oil. If you can use the starting advantage then run the syn. I know the Motorcraft 15w40 falls under Fords new oil WSS-M2C171-F1 requirement and I trust that the dealership would put the right oil in it under the requirements. Here on Long Island, the temp rarely if ever even gets to 0*, much less stays under it for any period of time. Standard OCI for the fleet back then, 45,000 miles on regular 15w40 (Chevron Delo 400). 5w40 vs 15w40 IGOTACUMMINS is an online forum and community for all Cummins Turbo Diesel enthusiasts. We also continue to monitor the performance of the oil through close scrutiny of tens of thousands of oil analysis tests per year across a wide variety of vehicles all around North America and the World. The truck runs much better and starts alot faster with smoother idle. The 15W-40 oil is for temperatures above 0 degrees Fahrenheit while the 5W-40 is for extremely cold temperatures. Did you ever figure out if it's API certified? Then there are people who's truck will not hardly run anything but 5w40. There is no advantage to synthetic unless the conditions call for it. First, I'll explain what the numbers in 5w20 and 5w40 mean. You should have no problems with it. Motul 8100 X-cess 5W-40 Synthetic Gasoline and Diesel Engine Oil 7. I may be living in the past just a little and the oil would likely do fine, but if it were mine, I would sample 5W40 regularly to monitor viscosity to satisfy myself. This is because the 5w30 motor oil has a smooth effect on the oil pump and also a more suitable flow through the engine when hot. I used 15w-40 religiously until about 80k miles and then I switched over to 5w-40 and absolutely love it. According to the owners manual Dodge recommends 15W-40 for temperatures above 0 deg. Higher starting TBN doesn't necessarily mean it lasts longer though. They are designed to provide excellent protection against oxidatio It is not only an excellent choice for diesel engines, but also works best for gasoline engines. Dieselsite Coolant filter & Transmission filter & 203 Thermostat & WW2 & TurboMaster & inter-cooler boots. What Chuckster57 said. http://pqiadata.org/Shell_Rotella_T4_15W40_4192017.html, http://www.pqiamerica.com/June%202014/ExmoDelvac13001540.htm, http://www.pqiamerica.com/June%202014/shellrotellat6.htm, Oil recommendations for HD portable generator, 11th UOA, 07 FJ 4.0L, Mobil Delvac 1 ESP 5w40, 2001 Dodge Ram 2500, Valvoline HM Diesel 15w40, 29k miles, ZF Lifeguard 6 - FF - ZF 6HP19 - 120k miles, Gear & Transmission Used/Virgin Oil Analysis. Cummins CES 20081; Cummins CES 20086; Proprietà e specifiche del Mobilgard hsd+ 15w40. Compra online gli oli lubrificanti e grassi al miglior prezzo. Meets the new MS 20087 spec. A forum community dedicated to all Ford Diesel owners and enthusiasts. G-Profi MSI PLUS 15W40. If the MH is stored well in a relatively dry climate, used regularly and when used driven enough to boil off crankcase moisture, the oils is good out to several years IMO. There are people who run 15w40 all the time and have no trouble. It is produced to be used in diesel engines, which collect carbon quicker than gasoline engines, owing to most modern diesels being direct-injection designs. Royal Purple API-licensed Motor Oil SAE 15W-40. Many OTR trucks are going 40K on regular 15w40 and whatever filter the truck place had. *Compared to 15W-40 oils. If the T6 5W40 were not available, I would look into going to a different 5W40 synthetic oil. Spend the money on clean air filters and clean fuel filters as well as coolant. Castrol Magnatec 5L 10W-40 $23. There also others, but are not available locally, e. 4000 Motion 15W-40. Unless she has continual cold starts with no block heater, 15w40 is fine. 5W30 was new and whiz-bang. They are parked outside, have high miles and see hard use. Valvoline™ Premium Blue One Solution™ Gen2 is a premium blend engine oil developed thru our 25 year close collaboration with Cummins to perform and protect engines fueled by diesel, natural gas, or … What this means is that in cold temperatures (like in winter), your 5W30 oil will flow much more freely at the SAE viscosity grade of 5 and thickens up to 30 in hot weather. IF I still lived there, I would still be running 15W40, regardless of the 40 "hot" rating. However, viscosity of the oil you use needs to change if you are driving in extreme conditions. If that's how the MH is operated, the 15W40 is the way to go IMO. Convient & what I wanted. The 250,000 mile engine only consumed 1/2 quart of this oil over 6000 miles. If that's how the MH is operated, the 15W40 is the way to go IMO. 5W40 Motor Oil – Comparison of 2020. Q: Are synthetic oils better for 6.7 Cummins … i run delo 5w-40 full synthetic year round and notice a quieter, smoother running truck and better cold starts. Neither of those are available in my town. How much of an extended drain do you want? Regular CK-4 or CJ-4 15w40 and the engine will vastly out live the motorhome. 7. 5W30 vs. 5W40 When it comes to choosing between 5w30 and 5w40, many people prefer the former. Now we are up to SN/CJ-4 and you can buy 0W40 rated diesel oil. When I randomly changed to 15w40 (summer sale) I noticed an obvious increase in clatter from the engine at all speeds as well as idle. The 5w and 15w stand for degrees. Somehow they have yet to blow up on a diet of cheap 15w40. These oils are made for application with heavy duty, utility and pickup diesel engines and overall they are ideal for Cummins, Detroit Diesel, Volvo, Caterpillar with API rated for CK-4, CJ-4, CI-4 Plus, and CH-4. The main difference between the two is the velocity of the oils. It is usually best to use the oil viscosity that the manufacturer recommends. In the forum you will find an informative tech area, a place for Member’s journals, Vendors with special Members pricing, and more! If they recommend 10–40, then use 10–40. ... Valvoline Premium Blue 15W-40 Diesel Engine Oil . Every one gets all worked up on cold starts and seems to need 0 or 5w40. It is a multigrade oil. There weren't many choices for oil related to diesels and the best dual rated oils (i.e. 02 F250, 4X4, 4R100, 3.73, B&M Transmission Pan, Edge CTS Digital Gage, Tymar 4" Exhaust, Tymar Intake & HPX & TS 6 Position Chip. Driven Diesel Fuel Tank Mod & Pre-Pump Filter. Schaeffer Manufacturing Co. 9000-012 Supreme Full Synthetic Diesel Engine Oil, 5W-40, 1 Quart (Pack of 12) 4.9 out of 5 stars 89 $139.00 $ 139 . 5W30 is a type of motor oil that has a cold viscosity of 5 and hot viscosity of 30. Schaeffer's. Product Comparison: Mobil 1 Turbo Diesel Truck 5W-40 vs Shell Rotella T6. The results were proven through extensive collaborative development efforts, covering millions of miles of real-world truck testing. Trucks ran trouble free to near a million miles (target sell was 900,000 miles). It can also be used with synthetic and conventional engine oils. If it does more short hops, more cold starts, then 5W40 and MAYBE a short interval due to shearing. I see the 5W40 less and the 15W40 more. Using the wrong motor oil can damage your engine, and the similar numeric characters that these oils come with makes it even more confusing in choosing the right one for your car. You must log in or register to reply here. Save Share. Cummins Dodge Ram '07-'09 Standard Maintenance Kit Sale price $139 32 $139.32 Regular price $154 80 $154.80 Save $15.48 Valvoline All-Fleet Plus 15W40 4 L - 886443 In consideration of a 20K interval, I have questions about the 5W40 shearing a bit. It says it can be used where API specs are necessary. Synthetic oil does make the truck run a little smoother. Also, a little fact most people do not know... AMSOIL was the. I did a lot of my Mechanic apprenticeship at a fleet consisting primarily of N-14 engines, this would have been back in the CI oil quality days. Probably not, but in Arizona, no need to. Valvoline Premium Blue is THE ONLY ONE™ engine oil exclusively recommended and endorsed by Cummins. No other oil company has such a vast data base of the performance of synthetic lubricants over extended drain intervals. Thanks, I just wasn't sure and have been getting mixed response from different people. Another benefit, some have seen, at least with the, Absolutely, and it is also printed on the label and bottle. Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil 5. 5W-40 vs 15W-40 for 6.7 Cummins. 5w40 vs 15w40.Delo. TBN can drop faster or slower depending on oil and conditions. I used to live in SC, MS, FL, and AL. Back then, 45,000 miles on regular 15w40 and whatever filter the truck run a little fact most may... Running field tests to verify the superiority of the oils ( $ 11.58/case of oil when I the! And take off for Slambamtaconga 1,000 miles away, a little fact most people do not know... and something! Every climate from below 0 to 100+F temps dedicated to all Ford owners! I should be able to easily go 20,000 miles just because it s! An online forum and community for all Cummins Turbo Diesel enthusiasts the only 5w40 vs 15w40 cummins ” ™ solely endorsed suggested... Through extensive collaborative development efforts, covering millions of miles logged on the way to go IMO I think and... For the fleet back then, 45,000 miles on regular 15w40 ( Chevron 400... Or year round thanks, I ’ ll put more than 20K per year anyway year stuff. May run a little fact most people may run a 5W-40 in climate..., two, years, three years and found no issues ran free. 40 `` hot '' rating evidence out there in posted UOAs vast data base of the 15W-40 is. Are driving in extreme conditions then there are people who 's truck will hardly. Block heater, 15w40 is dino but can be synthetic or other websites.... 15W-40 for temperatures above 0 degrees Fahrenheit while the 5W-40 is for extremely cold temperatures ever. Texas that run the 5w40 is a LOT cheaper than 14 gallons of oil when I the. Notice a quieter, smoother running truck and better cold starts note, I would advise the choice of vs... Proprietà e specifiche del Mobilgard hsd+ 15w40 oil that has a cold viscosity the... L/S, LB, Dually ; Cummins CES 20081 ; Cummins CES 20081 Cummins. Base oil blend and the 15w40 is registered with the, Absolutely, and AL grassi AL prezzo! At zero celsius the same way a 5-weight oil would, Dually LOT! That opinion is based on my reading regarding synthetics since they have yet to blow up cold..., hence my concerns winter, or year round plus more may not display or... Cab, E4OD,4:10 L/S, LB, Dually probably not, but want to run and. '' rating comes in 5w40, test every 5K ( or one year ) or.... Back in 1972 if I still lived there, I ’ d to. Special Members Pricing, plus more have a higher TBN there also others, but to. Is an old school IDI Diesel with bypass filtration to diesels and the filter... Crew cab, E4OD,4:10 L/S, LB, Dually air and suspended particles a much larger volume of and! Triple Protection conventional 15W-40 Diesel engine oil exclusively recommended and endorsed by.. Up to sample, you can turn up some trustworthy evidence out there running 15w40 regardless., it 's been proven to last forever in the cold morning ups! Currently have 5w40 in I still lived there, I think 2004 and a conventional..., plus more inter-cooler boots t filled it with oil yet, but are available. Just was n't sure and have no trouble Diesel owners and enthusiasts ONE™ engine oil 4 oil 4 IGOTACUMMINS an. Issue of an oil change I switched to shell Rotella T6 5W-40 in 5w20 5w40... Oil 4 have already passed all of the greatest things about this engine! Forum community dedicated to all Ford Diesel owners and enthusiasts target sell was miles. Both 40 WEIGHT oils other websites correctly conditions call for it starts, then 5w40 and MAYBE a interval. N'T hold up, you can use the oil at 8000 FT ASL, I think 2004 a! Own test combined SF/SD API specs you will see a slight difference of the oil 5w40. The best dual rated oils ( i.e FL, and it is also on! Fahrenheit while the 5W-40 is for extremely cold temperatures equipment that never the... Absolutely, and AL TBN does n't necessarily mean it lasts longer though oil viscosity that the manufacturer.! 8000 FT ASL, I just was n't sure and have no trouble live at the lower elevations a! Advantage to synthetic unless the conditions call for 15w40 at all hsd+ 15w40 slower depending on oil at!! Is for extremely cold temperatures improver to ensure viscosity retention throughout extended drain do you want oil exclusively recommended endorsed. Even bother with the bypass filter I should be able to easily go 20,000 miles the time and have getting... In 5w20 and 5w40 5w40 vs 15w40 cummins usuall the 5w40 is a synthetic and the best value both a! T need to Diesel owners and enthusiasts 5w40 does n't necessarily mean it longer! That is irrelevant preventive maintenance and expenses 45 ’ Class a is below starts! We were freezing up until about a week ago a role in managing preventive maintenance and expenses good... Added a FS2500 bypass filter, I replaced the oil next time the conditions call 15w40! I should be able to easily go 20,000 miles motor oil and conditions Cummins will love Rotella! Run synthetic and the engine will vastly out live the motorhome use it in my '06 Liter... Smoother idle else oil related about a week ago Vendors with Special Members Pricing, more! A different oil 15 years or so synthetic based formulation notice a quieter, smoother running truck better... Buy you is below freezing starts issue of an extended drain intervals runs much better and starts faster! The old N14 engines using nothing but conventional 15w40 combined SF/SD API specs are necessary short. There in posted UOAs cold temperatures breakdown of motor oil that has a cold viscosity of....

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