I have over 40,000 miles on the Stang and I'm wondering at what mileage should I change the 6R80 transmission fluid? So far I've only seen one or two threads on other sites about this subject. I assume this transmission really is that strong and durable from the factory.
What mileage to change 6R80 ATF fluid?
- Thread starter saunupe1911
- Start date
If you kicking the snot out of the car I would do it at 50k miles.
If your driving it normal then 150k miles like the manual states.
Mercon LV fluid
If your driving it normal then 150k miles like the manual states.
Mercon LV fluid
My OCD would never allow me to leave standard Motorcraft LV ATF in this transmission for 150,000 miles, even as a granny driven car.
Then I guess I have ocd as well since I wouldn't either lol. The way these cars get used, 30k is the max I would go. If the fluid isnt a nice clean red color, dump it right away and get some fresh quality fluid in there. We dump LV fluid at 30k on all the squads as it is brown/black by then from the heavy use. The trucks with the 6r get dumped at 50k
Here is how I interpret the "lifetime fill" claims.
"We here at Ford want to make sure that you are buying a new car from us one day."
"We here at Ford want to make sure that you are buying a new car from us one day."
lol, Isn't that the truth.
So beast what do you recommed to use in place of the LV. When changing the fluid?
AMSOIL Signature Series Fuel-Efficient Synthetic Automatic Transmission Fluid
Just ordered 12 quarts. I plan to keep this at least until 2016...and that's when all of the new muscle cars will be available for upgrade
Just ordered 12 quarts. I plan to keep this at least until 2016...and that's when all of the new muscle cars will be available for upgrade
this is what I plan on changing too when I pull the converter to get it restalled.
Call it overkill if you like but any auto trans car or truck I ever owned I change it once a year. I always put a drain plug in the first time as well, It takes most of the mess out if it. Also if I am feeling ambitious I'll take the lines and cooler off and blow them out. I use nothing but amsoil btw
12 qts of this thing? jeeebuz... that's one expensive oil change lol
It was like $112 (shipping included) for 12 quarts via my preferred account. Ford should just charge me for the labor. I'm getting a dyno tune in August and I want my engine/tranny running the best fluids in this 100+ degree TX heat.
Amsoil LV ATF - 12 quarts
I recommend buying one 2.5 gallon jug and two 1 quart bottles.
*Warning, it's possible an aftermarket torque converter can hold more fluid due to a larger size*
I'd confirm with the TC manufacturer about fluid capacity increase.
and worth every penny, considering shifting will smooth up at cold start temps while increasing fuel economy.
Shaun, would you mind sharing your experience publicly. I want SVTP to know how difficult it is in the newer transmissions.
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The combination of buying 2.5 gallons and 2 more quarts is a couple bucks more, not including shipping.
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It's not. Warm the trans up to operating temp, fill the flush machine, go. Takes about a half hour. If you're talking doing it shadetree style it may be a little more involved.
Get a pic of the lines you are tapping into please.
Sorry I'm busy right now.. but the quick disconnect lines at the passenger from of the motor
I just called Circle D about this, and they said it actually takes less fluid.
12 quarts is what Ford calls for on the stock converter right? I'll probably just buy 12 qts just in case, and have some left over fluid
I'm just going to go ahead and swap to Amsoil ATF and deal with it.
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Makes sense, performance converters are always smaller than stock.
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