Is it safe to convert to Mobil 1 synthetic automatic transmission from the standard fluid? I have a new Acura TL with automatic, and after the first service was planning on using Mobil 1 5-20 oil in the engine. I was wondering if I could safely use synthetic in the transmission also. The owners manual says to use the factory Honda fluid which is non-synthetic, but owners manuals typically always say stick with the factory parts. I simply want to treat this car to the "good stuff" and don't want to void my warranty by using something that would do damage. Thanks for any experienced comments on this. Steve
