Mom and Pop shop recommended the additive, I didn't like the sound of it so I came here....Lucas is what most people say, but I'm still hesitant to put anything but tranny fluid in it...at around 110,000 mls I did the maintance at the dealership that includes fluid flush, new timing belt etc. the dealership said everything about the transmission checked out great. It seems my problem was improved with the new fluid (and I assume the Lexus delearship used correct fluid) but not eliminated. Over time it continue to get worse, but very very slowly....With my last oil change I decided to do the drain 2 qts and add new. My fluid was very dark almost purple in color. I plan to flush two more qts soon....
It assumed it would be more than a fluid issue just because it is as bad today (if not a little worse) as it was 2 yrs/40,000 mls ago before Lexus gave me new fluids and I thought tranny fluid lasted longer than that, or is thi sjust a bad assumption?
It's good to know I'm clear of the computer issue. Thanks!!! Here's my plan, I'll check my paperwork and call dealership to see if transmission mounts were inspected. If no, I'll look into that, not sure how difficult that is.... I read a post where it was recommended to turn OD off to see if the issue on the highway persist. I'll try that too.
I've heard replacing too much transmission fluid at once can shock a transmission...is that true with Lexus as well? If I want to do the routine where you drain two qts at a time, how often should I do it at the most? Every 500 miles too often? Or every 5000 mls?
Thanks again, will keep you posted!!! I love my 98 and don't have the cash on hand for a tranny so I want to do everything I can now to get 100,000 mls more out of it...I'm sure you understand!