Originally posted by: redgtxdi
You'll find proponents of both.
If you aren't going to change your trans oil often, then I'd suggest a flush/fill........(remember you only get about half or slightly more of the oil out of the gearbox when you drain/refill, so always need to do it a couple times in a couple weeks to get it fairly good).
The argument against flush/fill is that the anal-retentive type always worry about the shop not cleaning the equipment properly, thus introducing possible contaminants from the last yahoo's flush/fill before yours. Is it true or not?? Even if it's true is it worth worrying about?? FIIK.....or care for that matter.
What *I* typically do is during the summer time I'll change my oil 2 or maybe 3 times. Well, I'll drain/refill my trans oil every one of those times too. It's lasted me 130K on my '98 Camry and 150K on my '95 Corolla.
Or maybe it's just the whole Toyota thing......