Just because the OEM filter was still there does not necessarily mean it was not flushed---most shops wrongly do the flush without a filter change!quote:
Originally posted by 02supercrew:
I should have made my self clearer, the car has 82k on it right now....I bought it 10K ago. The OEM filter was still in, and the fluid was so dark and burnt smelling, that there is no way that it could have been flushed in my opinion. Not to mention that the cheap line retainers were still on (most shops toss these).
Anyway, she's running good, and that's all that matters to me.
Why do transmissions fail after changing the fluid?
- Thread starter greencrew
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My Impala has had 2 fluid exchanges and one filter change in 85k. I had been accused of being anal when suggesting a 36k interval for the Impala. The last interval between fluid exchanges was only 32k and the fluid was shot. I've since revised my thinking to a 24k interval with conventional fluids. I plan on switching to Schaeffer 204S at the beginning of next year and using analysis to establish the interval for tht fluid.
My theory on "flushs" killing transmissions is that a complete replacement of fluid ends up cleaning the transmission out like a solvent based flush would and clogging vital passages. My answer is to do an AutoRx application before the fluid exchange.
My theory on "flushs" killing transmissions is that a complete replacement of fluid ends up cleaning the transmission out like a solvent based flush would and clogging vital passages. My answer is to do an AutoRx application before the fluid exchange.
I think the general public isn't gullible enough to leave their fluid in for too long, they're worse! Most people I've talked to don't even know that there is a fluid to change or fill. Even people hard grained on 3k oil changes don't change their transmission fluid. I blame it on extended drain recommendations and auto makers who go out of their way to make the fluid hard to change. They probably reason that it's better to have people drive around with old fluid then to have them wait to long to change it and end up with problems like those described above. So they make fluid that can better hold up to these ridiculous drain intervals.(ie DEX IIIH, ATF+4, MERCON V, ect.)
We better be careful, with everybody pushing extended drains we might end up in the same boat with engine oil.
We better be careful, with everybody pushing extended drains we might end up in the same boat with engine oil.
Many of the OEM fluids are unique and there are no licensed substitutes. Toyota Type T-IV is one. DaimlerChrysler ATF+4 is another. Ditto for Honda, VW, etc.
There are some ATFs said to be good for many of these, but they are not licensed by the vehicle maker. Lubegard's supplements are widely used mixed with Dexron-III. RedLine D4 ATF covers some of these special applications including VW and Volvo. Amsoil says that their ATF covers many. Schaeffer's new 204SAT is Dexron-III(H), Mercon, MerconV, DC ATF+4, Honda, and others.
What you clearly cannot do is just put Dexron/Mercon ATF in many transmissions.
Ken
My cousin is at 170k on her 96 T-turd. Her man changes motor oil at 3000 miles but never considered the trans fluid.
I don't want to get involved, for once.
I changed the ATF in my A4q at 55k, costs $300, but a trans costs like $6,000 and Audi does not sell parts. Some cars use "lifetime" fluids, but I find better performance after changing them. Just did the gear lube in our 1987 180k Coupe' with RP...smooth and good mpg.
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