I used to use Mobil 1 Synthetic but for the past 10 years per the advise from my tranny builder I've been running O'Reilly's type F and every freshen up looks perfect. Told me to quit wasting my money. Run the whole year on same fluid, don't change engine oil all year either.

Last edited by WadeMetzinger; 03/23/21 11:32 AM.
Wade Metzinger 918-809-0987
71 Cuda 9.28@145 -1s, Pglide
68 Cuda 10.64@124 1.45 60's 318->390 eddys
Moparts discount code on WIX - moparts www.Filter1.com