Originally posted by ondoy
jackaroo:

Does the "casa" not object to using another brand of Dexron III ATF (for the 4JX1-TC Trooper), instead of the their own? Will they (the "casa") allow mixing the existing ATF with a synthetic ATF, say the Mobil 1 Synthetic ATF? Is the job of ATF change doable via DIY? How difficult or easy is it?
Didn't have problems w casa when i used caltex and mobil ATF, though i always replaced it myself then informed them that i've done it. They also went from shell to "polo", w/c is a generic brand.
They said i could use mobil 1 ATF but won't get the full benefits of synth ATF since it'll mix w the mineral stuff til i do about 3 changes.
Very simple to change ATF, really DIY. Just drain then refill thru dipstick tube. What was critical was the right amount of ATF- never past the hot level on the dipstick after a long, hot drive.