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My local mechanic is advising against a CVT flush at 60K since my QX60 is now 8 years old! Says I should have done it at least once before (at 5 years). In his opinion if I do it now there is a 50% chance that the SUV will start slipping gears in 3-6 months. Any idea as to the validity of his claims? He thinks it would be better to just keep the fluids till the tranny gives up at 125k or so and then pay the 3-4k for a new one.

I am a bit torn, especially since he says he used to rebuild transmissions and has seen this happen a lot, even on Infiniti vehicles. OR should I just go ahead and get it done at the dealership who are happy to replace the CVT fluids? Please help!
 

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He's right and wrong. And since you're posting his comments here it means you're second guessing his opinion. Always good to trust your gut.

I was originally told by the dealer the fluid was lifetime. Then a ton of CVT transmissions started crapping out costing $3 to 4k.

The latest recommendation is to drain (not flush) your tranny fluid with Nissan OEM every 20 to 40k miles. If you haven't experienced shuttering issues by this point then your tranny will last between 150 and 200k miles (if you maintain your fluid change interval).

My advice, get your tranny fluid drained (doesn't matter where, use OEM fluids), than again before 100k (and so on).

The Car Wizard has a number of videos about Infiniti/Nissan CVT transmissions.
 

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Had it done 4 times, every 30k like the book says. Had a little judder issue ('14 QX60 Hybrid), but not in a long time. Got 125k on the car now, plan to keep it to 200k AT LEAST.
 

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I've done 4 partial drains/fills of 3 quarts each time using a small 12V pump through the filler neck. I drove it for few hundred clicks between each drain and fill. I figured that I've replaced most of the fluid while giving the transmission a chance to slowly adjust to new fluid.
 

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I've done 4 partial drains/fills of 3 quarts each time using a small 12V pump through the filler neck. I drove it for few hundred clicks between each drain and fill. I figured that I've replaced most of the fluid while giving the transmission a chance to slowly adjust to new fluid.
This should work since the tranny filter is a mesh metal screen, not a paper filter and doesn’t need to be periodically replaced. The only thing you’re not getting by dropping the tranny pan is the ability to clean the magnet.

BTW, dropping the tranny pan is super easy if you ever want to try it out.
 
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