It sometimes gets down to 10 or maybe even 5 sometimes, but rarely gets ti zero or below, does happen but kind of rare. My question was at temps of 10-20, would 15w40 synthetic flow much slower than synthetic 5w40 enough to cause increased wear at cold start
Sent from my iPhone > On Feb 13, 2022, at 11:00 AM, Allan Streib via Mercedes > <mercedes@okiebenz.com> wrote: > > 5W40 synthetic will flow better than 15W40 but I doubt the difference will > be really something to be concerned about at temps of 10-20 degrees. If you > were expecting temps well below zero that might change things. > > If the choice is 5W40 conventional vs 15W40 full synthetic I would probably > stay with the synthetic. > > That's just my opinion, based on no real research. YMMV. > > Mercedes has their approved oils at > https://operatingfluids.mercedes-benz.com/category/engine-oil/en but I'm not > sure which charts apply to which engines. > > >> On Sun, Feb 13, 2022, at 8:45 AM, Kaleb Striplin via Mercedes wrote: >> I have a huge stock pile of Sinopec 15w40 full synthetic but just >> wondered if it might cause more cold start wear than 5w40 because maybe >> it doesn’t reach all the engine parts as fast as 5w40 would? >> >> I was looking around last night online and Wally word does not seem to >> carry any sort of diesel synthetic at all around me. Could find no T6 >> that could be ordered anywhere. This is unbelievable. In fact if a >> person did want to find a 5w40 diesel oil this is about the most >> reasonable price oil I can find: >> >> Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic Heavy Duty >> Diesel Engine Oil 1 GA >> https://www.walmart.com/ip/169619602 >> >> That is aside from the $50 fancy oils which I am not a believer in. >> >> Sent from my iPhone >> >>>> On Feb 13, 2022, at 12:14 AM, G Mann via Mercedes <mercedes@okiebenz.com> >>>> wrote: >>> >>> One of my vehicles is a Ford F350 with the 6.0 diesel. The oil of choice >>> for that engine is now full synthetic 5W40 year round. I'm finding Shell >>> Rotella T-6 synthetic 5W40 & 15W40 impossible to source. Just yesterday, my >>> parts manager at NAPA advised me that Shell had announced they would not be >>> shipping consumer sized containers [1 gallon, quarts, and 2.5 gallon] for >>> the next year. Apparently they will be focused on large commercial users >>> [trucking companies] and selling 55 gallon drums, but not smaller. >>> Non synthetic 15W40 supply has been and still is equally in short supply. >>> If you find some, the NAPA manager said, buy it. I found 5 gallons and >>> bought it to change the oil on the 6.0, which was 4,000 miles >>> overdue because I could not source the oil. >>> Your results may vary. >>> >>> >>>> On Sat, Feb 12, 2022 at 9:36 PM Kaleb Striplin via Mercedes < >>>> mercedes@okiebenz.com> wrote: >>>> >>>> An oil question. Anybody seen or have any data on cold start flow rates >>>> of 15w40 v 5w40 at temps of say 10-20 degrees, or perhaps up to >>>> freezing? Would it be safe to assume that at any cold start temp of >>>> that range, or maybe even higher, the 5w will flow faster and lead to >>>> less wear at cold start, or does it make a difference since the oil >>>> should be under pressure? I would think it would be a given if you are >>>> trying to run 15w below zero, could run into lube problems? I guess >>>> bottom line question, would one make a difference over the other for >>>> cold start wear? >>>> >>>> _______________________________________ >>>> http://www.okiebenz.com >>>> >>>> To search list archives http://www.okiebenz.com/archive/ >>>> >>>> To Unsubscribe or change delivery options go to: >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>> >>>> >>> _______________________________________ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >> _______________________________________ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
