Originally Posted by BenitoI still think the heavy stuff is overkill unless you spend a lot of time racing the vehicle. Most (myself included) end up spending a lot of time at temps where the fluid is not as effective and thus in the long term hurt the gearbox more than you help it.
I'm actually at 170k on the original stock gearbox. Its taken some abuse but I don't drive it much. All I have is the gen 1 Miko bar .99 clutch spacer and prothanes on a stage 1 clutch.
I agree on the heavyweight being overkill. I ran it in my old 200sx and it honestly liked the lightweight stuff better. I destroyed a transmission with both the heavy and the light so neither are a saving grace.
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