Transmission fluid change interval

[Chase4556]

Need to look into it on my 2019 f150. I’m at 64k. Don’t know what the manual suggests.

My wife’s 2015 Grand Cherokee is a sealed transmission. No idea what the service interval is on it either, if there is one. But dealer will have to do it.

I’m not one to mess with transmissions, so both would be a dealer job. Gah I don’t want to pay for that if it’s something the manual suggests.

[Chase4556]

FordPass app gives me an interval. All the way until 100k it’s just a check the transmission fluid.

[PYBUCK]

Never, unless the tranny goes out. My 2013 Ram had 325,000 miles on it when I sold it to a friend. She is still driving it with no trouble.

[68rustbucket]

2017 Expedition manual says 100k. Can’t even check the level, no dipstick. Flushing is bad, last Expedition I had flushed, tranny went out 2 weeks later.

[jjaimes]

Never change it! We’ve changed if on 2 trucks and within 3 months both Transmissions went out. I spoke to a good friend who’s used to work in a used car dealership and he warned against this. He said it never failed every time they changed it within months they brought them back with transmission problems. I wouldn’t do it.

[Hoggslayer]

I’ve owed several cars and trucks and never once changed the transmission fluid.


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350K on My 7.3L, never changed it. I'm knocking on wood as I type this.

[Bucknaked]

350K on My 7.3L, never changed it. I'm knocking on wood as I type this.

Hmmm…. What does knocking on wood do?

[brokeno]

Never touch it

[Tx.Fisher]

My 06 Silverado, I dropped the pan and changed the filter and and filled it back up at 200k. I’m knocking on the door of 400k and thinking oh doing it again.

[Hoggslayer]

Hmmm…. What does knocking on wood do?

Just a old superstition. Knock on wood for good luck.

[68rustbucket]

I’ve always changed at 30k on my Superduty trucks, but the current 2019 has no drain plug. I’m up to 65k now. I like to drain, drop pan, change filter, and refill with 9 qts.

[Bucknaked]

Just a old superstition. Knock on wood for good luck.

What is Luck?

[PYBUCK]

What is Luck?

Its where preparation meets opportunity.

[hpdrifter]

What is Luck?

what happens when you knock on wood.

[muzzlebrake]

what year model was that truck and which tranny did it have in it?

2005 4l60e