Quote:
Originally Posted by Slow-V6
I flushed the Tranny on my 88 Cavy with 138,000 miles on it. After I did that the tranny slipped into gear alot. It still ran but had slippery shifts! Its up to you! If your tranny shifts fine and you dont have any problems then why change what you are doing? If it aint broke then dont try to fix it! Now if you flush it every 60,000 miles from when you bought the car Then I wouldnt see a problem. The reason my cavy had a problem was because it went 140,000 miles without a flush and I wanted to have the tranny flushed!!
|
Yeah, 140K is way over the manufacturers recommended mileage for a change. So expect problems if you are that far out of synch with maintenance.
Regardless, I give my cars a lot of hard work. Both the Mountaineer and the Town car tow both my boats. The heavier (and most frequently used) is the Bayliner weighing in at about 1600 lbs on the trailer. A 4 hour tow heats up the trans fluid and frequent changes are required.
Likewise, high stall converters are just as bad as towing. They slip a lot and heat the trans fluid well past its break down temp. So 60k mile trans flush with a high stall is the minimum mileage I would do to preserve the trans.
BTW, the more severe the usage, the more the stock trans cooler is unable to sufficiently cool the trans fluid. More frequent oil changed are needed and an external trans cooler is needed.
Just something to think about.