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explain transmission fluid jobs on an older CVT to me
Posted on 10/2/25 at 11:37 am
Posted on 10/2/25 at 11:37 am
I have a Nissan with a CVT and it runs fine, but we are hitting close to 150k miles and I know the transmissions are generally a ticking time bomb. It has never had transmission service done and I am wondering if I need to do a fluid change or flush. I am reading online that a flush may do more harm than good, which sounds strange to me considering that the fluid change is less invasive of a cleaning job than a flush. Can someone explain to me what would be the best course of action for me and if it would be better to go to the dealership or a transmission service location? It's about $250 for service work at the dealership but I have not confirmed if it is a flush or change service.
7
Posted on 10/2/25 at 11:56 am to BilbeauTBaggins
At 150k with no prior service, don’t flush it.
Get a proper drain & fill with Nissan NS-3 fluid, ideally done at the dealer or a trusted shop.
Consider doing a few staged drain & fills to refresh more of the fluid without shocking the transmission.
Get a proper drain & fill with Nissan NS-3 fluid, ideally done at the dealer or a trusted shop.
Consider doing a few staged drain & fills to refresh more of the fluid without shocking the transmission.
Posted on 10/2/25 at 12:19 pm to BilbeauTBaggins
drain, replace filter and fill, should be good if there are no problems right now.
If there is an issue, they become amplified after waiting for problems to arise, then the fluid service is done hoping that will correct problem., problem gets worse and the fluid service gets blamed..
If there is an issue, they become amplified after waiting for problems to arise, then the fluid service is done hoping that will correct problem., problem gets worse and the fluid service gets blamed..
This post was edited on 10/2/25 at 12:29 pm
Posted on 10/2/25 at 12:47 pm to BilbeauTBaggins
if you do a flush, just make sure they dont include conditioners or cleaners, just pure ATF.
Posted on 10/2/25 at 12:50 pm to OysterPoBoy
quote:
At 150k with no prior service, don’t flush it. Get a proper drain & fill with Nissan NS-3 fluid, ideally done at the dealer or a trusted shop.
This, plus new transmission filter. Internet says Nissans CVT have a replaceable transmission filter. Not all manufacturers do, e.g. Honda.
When do I need a transmission service
Should I have my transmission flushed?
Posted on 10/2/25 at 12:55 pm to BilbeauTBaggins
Getting 150k miles is darn good. I would use OEM parts and fluids for any servicing and check with a stealership regarding any TSBs for your model vehicle.
Posted on 10/2/25 at 1:24 pm to Megasaurus
quote:
rain, replace filter and fill, should be good if there are no problems right now.
If there is an issue, they become amplified after waiting for problems to arise, then the fluid service is done hoping that will correct problem., problem gets worse and the fluid service gets blamed..
Diddo
Posted on 10/2/25 at 5:59 pm to Macfly
My wife had a 2016 Rogue with168 on the odometer before it got totaled.
The transmission seemed like it was on its way out but it held up
Never did any transmission service on it either
The transmission seemed like it was on its way out but it held up
Never did any transmission service on it either
This post was edited on 10/2/25 at 6:00 pm
Posted on 10/5/25 at 7:11 am to papasmurf1269
This sucks to hear as my daughter has a Nissan Sentra.
Posted on 10/8/25 at 9:27 pm to BilbeauTBaggins
I had an Altima with 207k on it. It went out a month ago. I ended up dumping it as a quote from a dealer and reputable repair shop was 6200 and 5800, more than what the car was worth. And you can’t rebuild it. It was smooth as glass until the day it just went out. I was told the older fluid ate away at the belt. And when it pops that’s it.
I had never changed the oil based on my old habits.
I’d change the oil and gamble. But I’d imagine damage has been done to that belt. Good luck though.
I had never changed the oil based on my old habits.
I’d change the oil and gamble. But I’d imagine damage has been done to that belt. Good luck though.
Posted on 10/10/25 at 5:44 am to BilbeauTBaggins
quote:
flush
Do not have a 'flush' done on a tranny, regardless of what make or model.
The only exception would be on a low mileage vehicle(say under 30K).
Reason being is that a flush will most likely degrade the O-rings, friction plates and other sensitive parts inside the transmission.
Service Depatments love transmission flushes because its easy money for them but it usually a transmission killer on higher mileage vehicles.
Best thing is just to drop the pan and change the filter(if vehicle has one) and go with OE transmission fluid.
Posted on 10/10/25 at 2:24 pm to BilbeauTBaggins
I’ve seen where amsoil is the play in the Nissan cvt.
This post was edited on 10/10/25 at 3:16 pm
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