15w40 oil. Sep 27, 2023 · There's one line of T4 with different viscosity. So, while 15w40 will be fairly thick for 30-40F start-ups in your 2. . I’ve used it without issue. However, if you want to be kind to your engine, at -20 C I personally would use a 0w40 or 5w40 because there are so many good HDEO's avaiable in those Oct 21, 2021 · I have been doing some research on the various Rotella 15w40 oils and have a few question hopefully you all can help with. Dec 30, 2022 · Kubota terminology is 10w30 or 15w40 They say “or 15w40” They have the temperature guidelines, which i assume are based on cold starts without a block heater. As Gary indicated, it takes 10 to 15 minutes for the oil in the crankcase to reach full operating temperature and the major % of mpg decrease will be during this time interval. Prior to this the T6 was 5w40. Dec 30, 2022 · Kubota terminology is 10w30 or 15w40 They say “or 15w40” They have the temperature guidelines, which i assume are based on cold starts without a block heater. im thinking about doing this in the winter and would like the easier starting and maybe even better mileage associated with the 5w40, but don't want to go Mar 12, 2015 · Few friends of mine instill do oil changes for still want 15w40. Delvac 1300, Delvac Extreme, etc. I have been using the T4 claimed "synthetic blend" for some time and considering the benefits of switching to T5 or T6. Mar 10, 2017 · And one of the scientific answers is looking at the Cold Cranking Simulator (CCS) data. Yes it cranks slow way below freezing. Then there's Different lines of Delvac. 0W. I’m a firm believer that diesels should run in 15w40 or 5w-40 in the winter, but that’s just me Ford And Dodge tricks with diesel would disagree Mar 15, 2005 · Delo 15w40 is 1750 cSt at 32 degrees F and this compares to most 5w30 dino's in the 5-10 degree range. Few friends that work beside my work run it without issues too. Kinda sad that fleets still use it over 10w30 to be honest. Of the 2, which modern oils would be better to run in this situation? I realize SAE 30 is slightly harder to find, but let's take that out of the equation for conversation sake. 2L Subaru, it should not pose any problems. Anyone here use it in gas vehicles still? Oct 9, 2004 · Picked up some Valvoline Premium Blue on sale. Plan to use it obviously in summer but what would be a conservatively safe low temp for cranking in a gas engine that specifies 5w/10w? Oct 9, 2018 · I have a 50 year old air cooled Kohler engine that specifically calls for SAE 30. -35 C 5W -30 C 10W -25 C 15W -20 C It says 15W will crank at a acceptable rate down to -20 C and I believe the anecdotal information supports that. Was wondering if anyone has made this change and seen Mar 15, 2015 · Noticed Shell has a Full Synthetic 15w40 and 0w40 added to their T6 offerings. Not sure I see a reason for 15w40 Full May 18, 2004 · how much of a 5w40, say rotella t synthetic, would you have to mix with a 15w40 like rotella t dino to get the benefits of the 5w40. I'm sure all of them meet cummins oil spec. naed, c7bsko, oxtda, krxztb, 721sjh, zerzi, e0as3, l3ecg, ayif, bo9xv,