Yep, you're right, BS. Your mechanic or the dealer may not like it, but as long as any product you wish to use meets the INDUSTRY specifications and is used in the proper manner, then there is no way your warranty can be voided. This falls under federal anti-trust regulations I believe, and Mobil-1 even has a copy of the reg on their website.

Also, if your tranny doesn't like Mobil-1 ATF, then it's already broken!;pg;