Put synthetic RedLine MTL (Manual Transmission Lube) in this weekend with good results. Took just under 4 quarts. After 10-20 miles now, shifts are firmer and cleaner. Unexpected benefit is that the tranny is noticeably quieter, at idle and at speed.

It had ATF in it from the dealer before.

One of those things I should have done sooner. IMHO, well worth the extra $s over synthetic ATF.

Here is a link (click on Gear Lubricants at top of page):

http://www.redlineoil.com/products.htm


Scott D