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From: Nobody Important on 6 Sep 2007 14:06
Daniel wrote:
> ...
> Having things paid in full takes a lot of stress out of life and makes
> the maintenance costs with Toyota parts easy to justify, especially
> when labor is free apart from the one time cost of acquiring the
> correct tools.
>
> Daniel

Thanks for writing all that, Daniel. It's posts like yours that make me
come back to this newsgroup all the time.

Did you really change your ATF with every oil change? I've never heard
of someone doing that. What's your thinking?
From: johngdole on 7 Sep 2007 20:49
So the Mobil 1 synthetic ATF and Lucas oil may help slow down the
aging effect of Aisin transmissions. But no layer of sludge at the
bottom of the pan is like having no brake dust after braking for 5-10K
miles.

Aisin with traditional ATF gets dirty, and I'm not the only one saying
it. That's why after market valve body sleeves are available to reduce
the effects of wear and sluggish line pressure. Your case then is more
of an exception than the norm, as there are also Toyota transmission
that doesn't see 100K miles.

Sure, the wear once starts accelerates rapidly. I'm down to draining/
refilling every 7500. Costs less than $10.



On Sep 6, 10:47 am, Daniel <nospampls2...(a)yahoo.com> wrote:
> My understanding is that heat degrades transmission fluid, that if it
> is overheated once then the degradation progresses more rapidly, and
> also the effect is magnified as the temperature rises incrementally.
> Synthetic transmission fluid and synthetic motor oil are more
> resistant to the oil breaking down at higher temperatures. However, I
> keep the engine cooling system in perfect condition - that cooling
> fluid is always like new also, so the tranmission cooler in the bottom
> of the radiator is always operating at optimal efficiency and the
> transmission never overheats.
> Another key to long automatic transmission life is getting the fluid
> level correct.
> The factory service manual gives the temperature for checking, and I
> have confirmed with a thermometer on the case, essentially it means
> driving at least ten miles prior to checking the level to insure
> normal operating temperature.
> My other Toyota was manufactured thirty (30) years ago and still runs
> fine to get parts when working on the Camry. Actually it runs great.
> Elsewhere I referenced an article with photos about a guy who put one
> million miles on his Toyota.
> Having things paid in full takes a lot of stress out of life and makes
> the maintenance costs with Toyota parts easy to justify, especially
> when labor is free apart from the one time cost of acquiring the
> correct tools.
>
> Daniel


From: johngdole on 7 Sep 2007 20:51
I refill about every 2 oil changes. I go by how dirty the fluid is and
cut down on the interval. It's about 7500 miles now.

You probably don't have to, depending on your tolerance of how dirty
of ATF gets.



On Sep 6, 11:06 am, Nobody Important <Dr.Xen...(a)gmail.com> wrote:

> Did you really change your ATF with every oil change? I've never heard
> of someone doing that. What's your thinking?


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