I'm having a hard time deciding between doing a drain and fill with Mobil 1 Synthetic ATF (new formula) or using Amsoil Universal Synthetic ATF. Some folks here seem to be using Amsoil ATF with their older Toyota/Lexus cars, circa 2000, 2001, 2002. Would Amsoil ATF be advisable in a relatively newer Toyota like an '06 Camry with only 30,000 miles? It has the U250E transmission, I think. Like Bepperb, I'll have a 50/50 mix of Toyota T-IV ATF and Amsoil ATF (or Mobil 1 ATF)--since no flushing; just drain-and-fill.
Originally Posted By: bepperb
Actually, I'll be running a 50/50 mix of T-IV and M1 at my next oci, at 60,000 miles. I did one drain/fill at 40k, and it looked like it could use the refresh.