On my MK4 Jetta with 118k miles, should I go with thicker or thinner gear oil? I am using OEM G 060 762 A2 gear which I just filled in a year ago. Lately, I've been crunching first gear sometimes when upshifting from a stand still. Never happened before I replaced my oil.
I read in a VW forum that VW manual trannies have a floating primary shaft that's supposed to be stationary. But, when the oil is cold the secondary shaft moves the primary shaft inadvertently and thus causes gear crunching. Now, I should go thinner oil if this is the case but I still notice gear crunch at first gear even when the transmission has been warmed up already.
Any recommendations on gear oil?
I read in a VW forum that VW manual trannies have a floating primary shaft that's supposed to be stationary. But, when the oil is cold the secondary shaft moves the primary shaft inadvertently and thus causes gear crunching. Now, I should go thinner oil if this is the case but I still notice gear crunch at first gear even when the transmission has been warmed up already.
Any recommendations on gear oil?