Better gas MPG after transmission fluid change?

[Mr Nice]

Has anyone noticed a *slight* gain in gas mileage after changing the transmission fluid in your car/truck ??

My brother said his wife's Honda Element gets better gas mileage right after he dumped the Honda MTF with 60K miles on it.

Is this possible ??

 

[Titan]

SURE, it's possible. But, the question is: Are the two related? That, I don't know. Look, I drive the SAME roads the SAME speed under the SAME apparent conditions, and my mpg varies by about 2-3 mpg. I've put over 35,000 miles on my car since September, 2006, the only thing I've found that really seems to make a difference in temperature. Oh, well, of course, SPEED is number one...when I drive 78 mph, I get 5-6 mpg worse than when I drive 63 mph.

So, to say you get better or worse from changing fluid...I just don't know if it is measurable on one tank of gas. Just too many variables.

 

[Pablo]

So he dumped the MTF, now he's running it dry?

 

[simple_gifts]

Quote:

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So he dumped the MTF, now he's running it dry?

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Why? Doesn't Amsoil make synthetic pneumatic fluids?

 

[Mr Nice]

He put in Amsoil MTF

 

[Titan]

Quote:

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Quote:

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So he dumped the MTF, now he's running it dry?

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Why? Doesn't Amsoil make synthetic pneumatic fluids?

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I appreciate the effort...very good!

 

[Pablo]

yeah give him 8.5 for effort and 9 for originality.

Seriously I assumed the stock juice went back in....now I can't remember the vis of the stock stuff, and assume it sheared. Well maybe the Amsoil MTF is slightly lower vis.....how does it shift?

 

[Mr Nice]

There was another person on BITOG that said he also saw a slight gain with Amsoil compared to the Honda fluid.

I will search the for the post cause I am pretty sure they also used the Amsoil fluid.

 

[Mr Nice]

His name was 'Airbus'

 

[Al]

You won't see any difference. Probably. I changed front/rear punkin, transfer case, and tranny with Amsoil syn and didn't see a change. Might have been a slight improvement but I couldn't see it.

 

[rpn453]

Manual transmission fluid runs fairly cool if not loaded, so it's certainly possible to see some gains by switching to something that's thinner at those cooler temps.

 

[lindermant]

I did a drain/fill (~3qts) of the factory fill ATF on my '05 civic w/32k miles a few weeks back (replaced with Honda Z1 ATF).

I've been tracking my MPG for each tank since the car came off the lot; so far I've noticed no change with the fresh fluid. Just my