1BAD98LS1

iTrader: (33)

Does anyone recommend using synthetic tranny fluid, I hear it reduces the temp down 15 degrees or so, but it costs like 8 bucks a quart I am having my 4L60 built and was wondering what everyone else uses in there built trannys.Let me know, Thanks Sam

Z28_Ninja

iTrader: (2)

never ever use synthetic tranny fluid on the 4l60e it is too slippery for the tranny to handle and is a good way to kill it.

11SECSS

iTrader: (199)

I would go with what the builder recommends........