Originally posted by LoCoZ2.0:
GM slushboxes efficient? Ask some Grand Prix owners how good the slushbox is.


For a slushbox they are.

Now don't think that means they will ever be as effecient as the direct connection of a manual transmission will be, but they are ahead of a lot of the competition. (definitely well ahead of all US manufacturers - which unfortunately is not saying much these days)

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.