RL Lemke New member May 24, 2004 #1 It appears from the posts that Toyota uses synthetic oil in the transmission, from day 1. Do they also use synthetic oil in the rear differential and transfer case? If not, I want to change over to synthetic now that I am over 10,000 miles.
It appears from the posts that Toyota uses synthetic oil in the transmission, from day 1. Do they also use synthetic oil in the rear differential and transfer case? If not, I want to change over to synthetic now that I am over 10,000 miles.
toyo Member May 27, 2004 #2 They do not use synthetic in the diffs. I changed all mine out at 15k with Mobile 1
