[Black3]

Having read the bad stories and looked at the price of even a used transmission should mine fail, I decided to change the ATF and filter. I don't know if it has ever been done, so the ATF could have well over 100K miles; vehicle has 149K and transmission was replaced at about 30K. So, now I've driven it for a day with new fluid and I can both feel and see a difference. Starting and shifting are noticeably crisper and I can see a couple of tenths mpg better gas mileage on pretty much my routine daily route.

So, YMMV but I found it to be a very productive maintenance procedure. I could have saved some bucks by doing it myself, but I had the dealer do it for a total cost of a little over $500.

 

[francotirador]

..."I can see a couple of tenths mpg better gas mileage"...
That's pretty funny.

 

[Black3]

With these gas-guzzling beasts, a couple of tenths

in average gas mileage isn't unimportant. The point is, smartass, if you can do something that makes the vehicle more efficient, you should do it.

 

[francotirador]

Oh, excuse my ignorance. I didn't know the point of changing the ATF was to make the vehicle more efficient. I'm learning something new everyday. I'll have the dealer change the ATF in my car ASAP. According to your calculations I should recoup the $500 cost via gas savings in just a few hundred thousand miles or so.

 

[boardboy330]

Oh, excuse my ignorance. I didn't know the point of changing the ATF was to make the vehicle more efficient. I'm learning something new everyday. I'll have the dealer change the ATF in my car ASAP. According to your calculations I should recoup the $500 cost via gas savings in just a few hundred thousand miles or so.

That is the point in changing ANY lubricating fluid. Resistance in the transmission would cause poor gas mileage. Unfortunately it's difficult to quantify for all vehicles as each wear differently.

 

[francotirador]

That is the point in changing ANY lubricating fluid. Resistance in the transmission would cause poor gas mileage. Unfortunately it's difficult to quantify for all vehicles as each wear differently.

I'm sorry, but changing the ATF is most frequently done to maintain the transmission in order to avoid costly repairs due to lack of maintenance. The gas mileage gained from changing the fluid is, in my opinion, negligible. When have you heard someone say "my gas mileage has diminished, I'm going to change the ATF in my vehicle in order to improve the mileage"?

 

[Black3]

Is there any part of

go f**k yourself you'd have trouble comprehending? Idiot! Probably voted for Obama too.

 

[Oeschj]

This is getting way out of hand guys.....

 

[francotirador]

go f**k yourself you'd have trouble comprehending? Idiot! Probably voted for Obama too.

Oh my! A bit perturbed about ATF are we?