$100 Site Donor 2021
- Apr 28, 2008
- Ontario, Canada
I would not use that thread as a basis to read into anything about the performance of this oil formulation.There was just a l-o-n-g thread on this oil. it didn't look too good vs. the older high Ca formulation. Ca vs. zddp fight? I would prefer a NON LL, non long drain oil for performance and better AW activation but the old FS formulation is well certified and proven over years of service. Just leave it in - don't short service it!
But is the older formulation all bought up? What to do. Maybe someone here could help with date codes.
Mobil 1 FS 0w40, RAM 1500 5.7L HEMI 6000 mi, high FELatest report came back .... decided to give M1 FS 0w40 a shot.. Engine was run pretty much the same as before. Will be going back to valvoline next OCI.bobistheoilguy.com