Replace Transmission Fluid??

[doobabe25]

What are your thoughts on having the transmission fluid flushed and replaced? Im asking around and getting mixed reviews....... and since the MO is different than other vehicles I figured I would drop a line with those who should know

I have about 100k on the old girl now and want to avoid the scary problems I've been hearing about with the cvt.

[miloca1983]

Originally Posted by doobabe25

What are your thoughts on having the transmission fluid flushed and replaced? Im asking around and getting mixed reviews....... and since the MO is different than other vehicles I figured I would drop a line with those who should know

I have about 100k on the old girl now and want to avoid the scary problems I've been hearing about with the cvt.

well... the cvt tranny is guaranteed until 120k... my advice is if you see no leaks on the floor or no leaks coming from the cvt itself no reason to do it



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[HVT]

I'd have the dealer do it if it's never been done.

[njjoe]

This has been an ongoing debate since 2003.

Nissan claims the CVT fluid is a special long-life formulation that has no set replacement interval under normal use. Nissan utilizes an algorithm in the engine's computer to calculate the replacement interval - it is called the CVTF Deterioration Date. When this unit-less number reaches 210,000 it is time to replace the fluid.

When my MO was 4 years, 11 months old and had 46,699 miles on the odometer I had it checked by my dealer. The CVTF Deterioration Date was: 9255 , well short of the 210,000 that Nissan recommends as the change point. Assuming it is a linear progression the CVT fluid will outlive me.

Some people elect to treat the CVT like a conventional automatic transmission and use similar replacement intervals - 60,000 miles. There is nothing wrong with that. That's like changing your engine oil at 3000 miles - it is overkill and wasteful, but it will not adversely affect the longevity of the MO.

Me? I am putting my faith in the CVT Deterioration Date algorithm.

-njjoe

[HVT]

Oh I wasn't aware of that. I'd leave it alone then. I would only have changed it to keep the warranty good but if there's no change interval, I'd leave it. Good info.

[miloca1983]

Originally Posted by njjoe

This has been an ongoing debate since 2003.

Nissan claims the CVT fluid is a special long-life formulation that has no set replacement interval under normal use. Nissan utilizes an algorithm in the engine's computer to calculate the replacement interval - it is called the CVTF Deterioration Date. When this unit-less number reaches 210,000 it is time to replace the fluid.

When my MO was 4 years, 11 months old and had 46,699 miles on the odometer I had it checked by my dealer. The CVTF Deterioration Date was: 9255 , well short of the 210,000 that Nissan recommends as the change point. Assuming it is a linear progression the CVT fluid will outlive me.

Some people elect to treat the CVT like a conventional automatic transmission and use similar replacement intervals - 60,000 miles. There is nothing wrong with that. That's like changing your engine oil at 3000 miles - it is overkill and wasteful, but it will not adversely affect the longevity of the MO.

Me? I am putting my faith in the CVT Deterioration Date algorithm.

-njjoe

how did you get the cvt deterioration date? that can only be done by the dealer?



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[Warhammer]

Same question here too. My MO is about to turn over 104K miles and I'm itching to do all fluids across the whole vehicle; i.e. coolant, power steering, brakes, differentials, etc.

[Pilgrim]

My advice: if you want to keep the 120K mile warranty in place, read the service directions in the manual and adhere to them.

[njjoe]

Originally Posted by miloca1983

how did you get the cvt deterioration date? that can only be done by the dealer?

My car was in for warranty work and I asked the service manager to check the CVTF Deterioration Date. Nissan's Consult-II diagnostic tool is required to download the info.

-njjoe

[Warhammer]

Originally Posted by Pilgrim

My advice: if you want to keep the 120K mile warranty in place, read the service directions in the manual and adhere to them.

120K warranty on what? Are you referring to the CVT? Thought that one expired at 10yr/110k.

[njjoe]

Originally Posted by Warhammer

120K warranty on what? Are you referring to the CVT? Thought that one expired at 10yr/110k.

The CVT's extended warranty applies to 2003-2010 MOs and is for 10-years/120,000-miles.

-njjoe

[Halwg]

I wonder if the transmissions start crapping out on the 2011 - 2012 models if Nissan is going to extend the warranty on them, as well?

[lgt]

I was told that anything from 06 on is pretty solid and the 2nd gen Mo has a redesigned CVT that is supposedly better.

[Melodymurano]

When I mentioned in another thread that the first generation CVTs were mostly lemons more specifically 2003 Muranos, I was told that I was wrong. Good to know that the 2nd generation CVTs are much better.

[woofster]

In my current and previous experiences with Audis and VWs, the OEM always indicates that their transmission fluids are lifetime and do not need to be changed or flushed. If you ask the VW/Audi guys, despite what the factory says, we all still change the fluid and filter at regular intervals. I've had a number of Audis and have adhered to this practice.

Although I'm not that familiar with Muranos (yet!), I don't see an issue replacing the fluid every 60,000 miles (100,000 km) or so. What is the concensus here?