Been using M1 0 wt 40 since new. 7500 mile intervals. At 40k now with no tick. I'm considering going to Redline 5 wt 40. I just wish I could get it locally and not have to order it..
Sent from my LG-K540 using Tapatalk
Order it through “nick@gotexhaust” pm him and he will get it to you fast, with free shipping and cheaper that anywhere else. Most All the guys on the syn thread that run redline use him including me.
And no, you will not throw engine lights with 10w40 or 5w40. But im not telling anyone what to do. Its your choice. My trucks hot idle pil pressure is only 1 psi higher with 10w40 vs 0w40. They are both “40’s”.
The reasoning for 5w40 or 10w40 is to use an oil with way less Viscosity Index Improvers. They take the place of quality base stock oil in the blend and 0w40 is FULL of VII’s. Thats why most, not all (ester/pao base stocks shear almost none or literally none in some cases) 0w40’s shear down to a 30W after about 1000 miles. If you tow a lot and your oil temps rise past 220 your 0w40 that already sheared down to a 0w30 is now thinning to 20w or even thinner....