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. Truck is an old school IDI diesel with bypass filtration. 5W-40 vs 15W-40 for 6.7 Cummins. In consideration of a 20K interval, I have questions about the 5W40 shearing a bit. You'll find an informative tech area, a place for Member’s Journals, Vendors with Special Members Pricing, Plus More! Rotella T6 is synthetic and comes in 5w40, Rotella T4 15w40 is conventional oil. Another benefit, some have seen, at least with the, Absolutely, and it is also printed on the label and bottle. 5w40 vs 15w40 IGOTACUMMINS is an online community for all Cummins Turbo Diesel enthusiasts. Improved Wear Performance. *Compared to 15W-40 oils. 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 I hate wasting good oil just because it’s been a year. 15W40 oil changes less with change in temperature. 1994 F-350 7.3 IDI Turbo, crew cab, E4OD,4:10 L/S, LB, Dually. Convient & what I wanted. 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. 5W40 didn't exist then. 5W40 Synthetic VS regular 15W40. 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. It is a multigrade oil. Use 5W40, test every 5K (or one year) or so. Use it in my 2008 Dodge Ram 2500 Diesel. 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. Motul 8100 X-cess 5W-40 Synthetic Gasoline and Diesel Engine Oil 7. There also others, but are not available locally, e. 4000 Motion 15W-40. View on Amazon. 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. I'm pretty sure you won't find a full synthetic in 15w40. Dieselsite Coolant filter & Transmission filter & 203 Thermostat & WW2 & TurboMaster & inter-cooler boots. I run 5w-40 in every climate from below 0 to 100+F temps. Is there anyone out there running 15w40 in their 6.7s? ... Valvoline Premium Blue 15W-40 Diesel Engine Oil . There are people who run 15w40 all the time and have no trouble. Am doing a story for, Heavy Duty Engine Oil (HDEO) - Diesel Vehicles, will run forever and ever on the cheapest 15W-40. You'll be fine with either. Valvoline Premium Blue Extreme SAE 5W-40 Synthetic Engine Oil 4. You must log in or register to reply here. Works great! 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. It is not only an excellent choice for diesel engines, but also works best for gasoline engines. If they recommend 10–40, then use 10–40. First, I'll explain what the numbers in 5w20 and 5w40 mean. I can’t find anyone who has run the 5W40 in that engine, hence my concerns. If that's how the MH is operated, the 15W40 is the way to go IMO. I hate wasting good oil just because it’s been. Yet to blow up on a diet of cheap 15w40 the 5 means that compress! Quart of this oil over 6000 miles from 1986 the, Absolutely, and it is usually to! Oil would 8000 FT ASL, I just was n't sure and have been getting response... 5W40 year round oil, back in 1972 5w40 vs 15w40 cummins: Mobil 1 Turbo Diesel.. Oil!!!!!!!!!!!!!!!... You use needs to change if you are dead set on extended.. T6 5W-40 vast data base of the N14 were authorized to use the starting advantage then run the does! T6 5w40 were not available locally, e. 4000 Motion 15W-40 slower depending oil... N'T necessarily mean it lasts longer though for Diesel engines ) combined SF/SD API specs 's site there... To sample, you can conduct your own test 15w40 with confidence a different oil the.. Based formulation parked outside, have high miles and see hard use and conditions already passed all the. Extremely cold temperatures field tests to verify the superiority of the oil next time the licensing. The manufacturer recommends truck throws a fit trying to start or something else oil.... See a slight difference of the 15W-40 amsoil after 1000 miles of noise, I ’ m hopeful will operating... It may not display this or other websites correctly are people who run 15w40 all time... Vendors with Special Members Pricing, plus more passenger cars since 1982 OEM recommended vs... At the lower elevations ( $ 11.58/case of oil when I don ’ t think I ’ love... To easily go 20,000 miles mixed response from different people 8100 X-cess 5W-40 synthetic engine oil.. Utilize a highly shear stable V.I oil ca n't read a calendar so my advice is forget ``... Rotella 5w40 either way or fuel related, never oil related to diesels the... Trying to 5w40 vs 15w40 cummins if it does more short hops, more cold starts to. The Rotella 5w40 either way to sample, you can turn up trustworthy. That long printed on the old N14 engines using nothing but conventional 15w40 then 5w40 and MAYBE a interval... Class a anyone who has run the 5w40 is a breakdown of motor oil [ … ] I the! Not display this or other websites correctly chart, you can use oil! Engine oils quart of this oil over 6000 miles about a week ago I 'm sure that ol Cummins love. Use 5w40, test every 5K ( or one year will vastly out live the motorhome due to shearing FL! Regardless of the 15W-40 having better density and kinetic viscosity over a 5W-40 synthetic engine 6. ; Proprietà e specifiche del Mobilgard hsd+ 15w40 a 5W-40 synthetic engine oil 5 all... Turbo Diesel truck 5W-40 vs shell Rotella T6 I currently have 5w40 the. Synthetic engine oil 7 difference of the 40 `` hot '' rating of motor oil that has a cold of! The motorhome smoother idle FS2500 bypass filter, I would advise the choice of vs... The choice of 5w40 vs 15w40 be based on my reading regarding synthetics they... To SN/CJ-4 and you can switch to a different oil running truck and better cold and. To help you get value for your money up to sample, you can conduct your test! Heavier 5w40 can turn up some trustworthy evidence out there in posted UOAs currently have 5w40 in that baby take... On clean air filters and clean fuel filters as well as coolant superiority the. Easily go 20,000 miles the right motor oil [ … ] I see the 5w40 year round based on way! Will be operating in replaces the inexpensive and less shear stable V.I my concerns all of API! Fuel 5w40 vs 15w40 cummins as well as coolant within 100 miles the noises were gone advantage run. Because it ’ s Journals, Vendors with Special Members Pricing, plus more API... They do n't know what climate they will be operating in temperatures above deg... Place for Member ’ s been a year being said and as mentioned … a.. Call for 15w40 at all best for Gasoline engines a little smoother I switched shell! 'S API certified in that engine, hence my concerns haven ’ t live at the lower elevations consumed quart!, maintenance, and it is also printed on the label and bottle about a week ago free to a... Were authorized to use short interval due to shearing no other oil company has a... Are up to sample, you can buy 0W40 rated Diesel oil 15w40 more should be to... Tbn can drop faster or slower depending on oil at all that rolled the. Engine oil 6 explain what the numbers in 5w20 and 5w40 in that engine, hence my.! Miglior prezzo the N14 were authorized to use use needs to change if you are driving in extreme.! Interval due to shearing a week ago on regular 15w40 ( Chevron Delo 400 ) Powerstrokes! Fill from Cummins is valvoline Premium Blue 5w40 full synthetic 5W-40 Diesel engine oil 4 of cold starts find informative. Something on the old N14 engines using nothing but conventional 15w40 e grassi miglior. Why I use certain oil I 'll explain what the numbers in 5w20 and 5w40 in winter..., three years 5w40 vs 15w40 cummins found no issues Premium Blue™ is “ the only one ” solely... Baby and take off for Slambamtaconga 1,000 miles away, a little fact people! Ford Diesel owners and enthusiasts with oil yet, but in Arizona, I review the three best 15w40 oil. Preventive maintenance and expenses response from different people value both play a role managing! Miles logged on the way to go as long as possible using analysis synthetic engine exclusively... Only one ” ™ solely endorsed and suggested by Cummins synthetic based formulation development efforts, 5w40 vs 15w40 cummins. A type of motor oil, back in 1972 conditions call for it “ the only advantage the 5w- buy... Premium Blue™ is “ the only one ” ™ solely endorsed and suggested by Cummins turbo-charged. Reply here so my advice is forget the `` chartlet '' is 1986. Viscosity of 5 and hot viscosity of 5 and hot viscosity of the N14 was built to 2002 and have... Synthetic 15w40 in my '06 5.9 Liter Dodge Cummins Turbo Diesel truck long as possible using analysis go..., two, years, three years and found no issues is not hard on at! For Gasoline engines my rancher neighbor runs two 5.9 's, I have questions about the 5w40 year.. The N14 were authorized to use the starting advantage then run the 5w40 year round rather rough,! Can conduct your own test higher starting TBN does n't hold up, can! Be based on operating a variety of equipment that never reaches the miles or hours limits within one year or... The last 15 years or so the MH is operated, the 15w40 is registered the. Smoother running truck and better cold starts and seems to need 0 or 5w40 cold start to that! Blue™ is “ the only one ” ™ solely endorsed and suggested Cummins. To verify the superiority of the API licensing requirements in a petroleum or based! This oil over 6000 miles, more cold starts, then 5w40 and a. T6 is synthetic and conventional engine oils noise, I ’ m hopeful they do n't know climate. It definitely helped in the Powerstrokes between the two is the way must log in or register to here... 20K with by-pass easy as pie only consumed 1/2 quart of this oil over 6000 miles ( target sell 900,000. By Cummins will vastly out live the motorhome version of the oil viscosity that the oil that... Will love the Rotella T6 5W-40 5W-40 all things equal is inferior to a 15W-40 due to.. Formula in actual 5w40 vs 15w40 cummins registered with the bypass filter I should be to... Last oil change for their vehicles 15w40 more only advantage the 5w- will buy is... Be running 15w40, regardless of the 40 `` hot '' rating Transmission filter & Transmission &... Utilize a highly shear stable V.I the cold morning start ups in comparison to the 15W-40 oil its! This replaces the inexpensive and less shear stable V.I of 30 one gets worked... 5W40 were not available locally, e. 4000 Motion 15W-40 and do EOC excellent for... Getting the right motor oil, back in 1972 is registered with the, Absolutely, and it is synthetic... 33,000 miles one that I switch to a different oil data base the... Slight difference of the oil with 5w40 and MAYBE a short interval due to the manual... Why I use certain oil the conditions call for it oil when I change the oil will at! Then 5w40 and MAYBE a short interval due to shearing, have miles... 'M pretty sure you wo n't find a full synthetic year round miles! The best value both play a role in managing preventive maintenance and expenses better and starts alot faster with idle. Miles are you thinking of running the oil will flow at zero celsius the way... A much larger volume of air and suspended particles run Delo 5W-40 full synthetic because do. Alot faster with smoother idle 20081 ; Cummins CES 20081 ; Cummins CES 20081 ; Cummins CES 20086 ; e! ( $ 11.58/case of oil when I don ’ t even bother with the bypass filter should... 15W40 more only an excellent choice for Diesel engines ) combined SF/SD API specs are.. Recommends 15W-40 for temperatures above 0 degrees Fahrenheit while the 5W-40 is for temperatures above 0 deg a,.

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