Originally Posted by 99BonnevilleSE
Originally Posted by Jstpsntym
I am currently using Mobil 1 in the motor. I plan on using Amsoil in the tranny after the first fluid change.
Why do you want to switch the tranny fluid? It was designed for the regular stuff. But if you do switch to synthetic ATF, only use Redline or Amsoil. Mobil 1 Synthetic ATF will make it slip and you can never get power to the ground. I know from experience.
I am looking to keep the temperature down and extend the life of the tranny. I do have a tranny cooler. I also know that (besides neutral drops) temperature is the biggest enemy. I don't think that I will ever realistically buy an aftermarket tranny, so I would like to keep this one in the best shape possible. The manual says that I can go between 50 and 100k miles between services as it is. It could be "years" before I need to change the factory ATF fluid.
Amsoil is pretty expensive, but offers entended change intervals. Is the bang-for-the-buck worth it? Does it make sense to change it out now or wait for scheduled change? If the tranny does not take alot of abuse, is it necessary/worth it? As always, alot of questions for Hector. :P
p.*. I haven't decided against ordering anything, it is just that things at work are a little scary right now, with layoffs and stuff. So I have just put a (hopefully temporary) freeze on my non-critical spending. :(