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Have a 2015 Wrangler with an auto transmission thats “maintenance free” for 120,000miles.. Was thinking about dropping the pan, replacing the filter and trans fluid with something better. Every other vehicle I’ve owned, the magnetic transmission plug had shavings on it when doing a fluid/filter change. So its got me concerned about the Jeeps trans and the claim of it being good for 120,000 miles before service. What do you guys think?
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“Fill for life” usually means the life of the car, which is usually something like 10 years or, lets say, the 120k miles Jeep quoted.
I’m pretty sure a large portion of new cars barely even makes it that far, on average. To keep your car going beyond its intended “life” usually means doing maintenance to “for life” parts.A lot of transmissions are “filled for life”, some even don’t come with a drain plug anymore. Doesn’t mean that they don’t like having their oil changed, in fact, doing oil changes (a little earlier) really prolongs the life of a gearbox well beyond its orignal “for life” life expectancy.
On manual cars, I try to stick to something like 10 years or 80k miles (the $20 in gear oil isn’t the end of the world either), or whenever the driveshaft came out and poured all the oil out anyway.
I’m not sure how long ATF in an automatic is supposed to last, I’ve never owned one or worked on one, but I’d say replace it sometime. I know automatics are very picky about their ATF being clean and good, so why not now? 🙂 Cleaning the oil extends the life v/s running it with dirty oil.
Fill for life transmissions are a bunch of hooey! Change the ATF every 50-60k and your trans will last 200+k miles. If you halve the interval at 60k that would be ideal.
That’s true only if you don’t want to keep and maintain the truck for a long time, I would recommend changing it every 50k miles as others quoted
Considering around 1/2 the ATF stays in the torque converter , I do not think you are going to be hurt financially if you change the ATF often .
Our little Chevy Sonic 1.8l automatic has had a drain & fill twice in 40,000 something miles and it always comes out black . Using Dexron 6 .
By the way , boo to Chevy for not having a dip stick . It has a drain plug on the bottom of the tranny & an overflow plug on the side .
ATF fluid is cheap compared to a transmission rebuild / replacement . Also , no DIY tranny filter . I read the case has to be split to replace the filter .
Wyr
Giod bless
🙁
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