Rear end Gear lube

[SSDiv6]

Originally Posted by Mark Yacavone

My experience is to break the gears in with conventional stuff first.

I used Dexron in Doug Nash 4+ 1's for years.

Many of the newer OEM stick shift transmissions require ATF. Seen too many people go to a quick lube type of shop and have the ATF replaced with gear lube and then have problems shifting.

Had a neighbor complain at one time that he had the lube on his stick shift car changed and they had damaged his transmission because it was difficult to shift. Had him show me the invoice and they had put 90W140 gear lube. Asked him for his owner's manual and it showed it required ATF. Told him to go back to the shop and have them replace the oil with ATF. He came back and said the problem was gone. Told him he and the shop were Morons; him for not looking at the manual and the shop for not knowing what they were doing, especially with a kid working at minimum wage.