Engine or CVT Burnout From Increased Tire Weight - Jeep Patriot Forums
Engine and Drivetrain Engines, transfer cases, transmissions and axles

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post #1 of 8 (permalink) Old 04-24-2019, 04:42 PM Thread Starter
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Engine or CVT Burnout From Increased Tire Weight

Good afternoon everyone. I was planning on upgrading to some 225 65 r17 KO2's after my riot warranty has ended. Has anyone experienced issues with early engine or CVT burnout from using heavier tires? I have a 2015 Altitude front wheel drive.
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post #2 of 8 (permalink) Old 04-25-2019, 07:42 AM
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Before I installed 225/75-16s I asked my dealer if it would void my warranty. She said no, so I expect you'd get the same answer.

PS, best advice for CVT longevity is to change the tranny fluid at half the recommended interval, probably around 50-60,000 miles. I don't think you can kill the 2.4 mill. I got mine to almost 300,000 before I noticed any oil consumption and even then it wasn't much -- maybe a quart between changes.
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post #3 of 8 (permalink) Old 04-25-2019, 08:17 PM Thread Starter
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Before I installed 225/75-16s I asked my dealer if it would void my warranty. She said no, so I expect you'd get the same answer.

PS, best advice for CVT longevity is to change the tranny fluid at half the recommended interval, probably around 50-60,000 miles. I don't think you can kill the 2.4 mill. I got mine to almost 300,000 before I noticed any oil consumption and even then it wasn't much -- maybe a quart between changes.
Thanks for the reply. My manual actually says to change the fluid at 60,000.
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post #4 of 8 (permalink) Old 04-26-2019, 09:59 AM
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Anytime you add strain to the drivetrain it's always a good idea to make sure you have good cooling. If you don't have a aux trans cooler I would add one. Other than that keep that fluid changed. I changed mine at 40,000 and plan on doing it again at 80,000. Cheaper than a new CVT!
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post #5 of 8 (permalink) Old 04-26-2019, 08:50 PM
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Originally Posted by rhino714 View Post
Thanks for the reply. My manual actually says to change the fluid at 60,000.
I was going off what I believe my recently sold '08 owners manual said. If I recall correctly 60,000 was for severe service. We can only hope that FCA has updated/corrected it. If you're really making it work then I concur with MrJ above -- sooner is better.
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post #6 of 8 (permalink) Old 06-25-2019, 01:16 PM Thread Starter
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Anytime you add strain to the drivetrain it's always a good idea to make sure you have good cooling. If you don't have a aux trans cooler I would add one. Other than that keep that fluid changed. I changed mine at 40,000 and plan on doing it again at 80,000. Cheaper than a new CVT!
I just changed mine at 55,000. I didn't realize there was an aux trans cooler. Do you have a link for the part?
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post #7 of 8 (permalink) Old 06-25-2019, 01:49 PM
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CVT will burnout before engine...

Yes, the economy has gotten better....
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post #8 of 8 (permalink) Old 06-25-2019, 02:09 PM

 
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I just changed mine at 55,000. I didn't realize there was an aux trans cooler. Do you have a link for the part?
I think he's talking about adding an aftermarket cooler like this:

https://www.amazon.com/Hayden-Automo...7NYR6RAKJK77XZ

along with the factory cooler which is one of three types:
https://www.jeeppatriot.com/forum/15...-you-have.html
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