Hazen, Dwight L wrote:
For cold weather Mobile synthetic transmission oil is a must! It should be 80 or 90 weight. Using 10/40 engine oil you might have a problem with the thin oil leaking out of the case and seals. For sub zero use 10/40 might be ok. I noticed a big difference in performance with temps in the low 40's using the synthetic oil.Any new oil is better than old/low oil!
_________ Jim Coate 1992 Chevy S10 1970's Elec-Trak http://www.eeevee.com