by andrewward » Thu Sep 02, 2021 7:51 pm
Thanks Greeves, mine is a 5 speed manual, I used to use 15w40, now I use Silcolene 20w50 specific for vintage cars and trucks, used to have blowbye issues now it runs fine with that oil. Not sure what's in the transmission !, the mechanics here have no idea what to put in there because these trucks are rare here and there is no information anywhere. So in your opinion shall use the Silcolene or the ones you mentioned ? thanks