I had a transmission flush at a quick lube place (not to be named). I asked if they had T-IV ATF for my '04 Toyota 4Runner. They said they did, so I had the flush done w/ 113k on the odo. I immediately noticed that the vehicle shifted more smoothly after the flush. However, within a couple weeks the transmission became sticky, e.g. felt engine braking while coasting, needed more brake pressure while idling at stop lights, vehicle would idle over inclines (e.g. my driveway) that previously required accelerator.
I did a little investigating and found out that this quick lube place does not have T-IV but instead uses Dextron w/ a Mighty (brand name) SB101 additive. I've since had the xmission reflushed at a stealership w/ the T-IV. The xmission seems to be operating normally again.
My questions: Is T-IV a Dextron base w/ additional additives or is it an entirely different composition? Can Dextron w/ the additive be used as a reasonable replacement to T-IV or is it just asking for trouble?
Based on my experience w/ the Dextron/additive I think I know the answers to the above questions. Any details that would help back up my suspicions would be greatly appreciated since I will likely be seeking at least a refund from the quick lube establishment.
I did a little investigating and found out that this quick lube place does not have T-IV but instead uses Dextron w/ a Mighty (brand name) SB101 additive. I've since had the xmission reflushed at a stealership w/ the T-IV. The xmission seems to be operating normally again.
My questions: Is T-IV a Dextron base w/ additional additives or is it an entirely different composition? Can Dextron w/ the additive be used as a reasonable replacement to T-IV or is it just asking for trouble?
Based on my experience w/ the Dextron/additive I think I know the answers to the above questions. Any details that would help back up my suspicions would be greatly appreciated since I will likely be seeking at least a refund from the quick lube establishment.