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transmission fluid change vs. flush on CVT

Posted on 2/28/23 at 1:34 pm
Posted by BilbeauTBaggins
probably stuck in traffic
Member since May 2021
4301 posts
Posted on 2/28/23 at 1:34 pm
Someone explain which would be the better route to go and where there might be a place in BR to get the service outside of the dealership. So far I've tried Firestone and NTB but neither perform any services regarding transmissions according to them, even though the websites all have transmission service as an option.

2015 Nissan Altima 3.5 SL
This post was edited on 2/28/23 at 2:15 pm
Posted by WHATASHAME
Louisiana
Member since Sep 2009
610 posts
Posted on 2/28/23 at 2:09 pm to
Vehicle make and model would be helpful…
Posted by BilbeauTBaggins
probably stuck in traffic
Member since May 2021
4301 posts
Posted on 2/28/23 at 2:16 pm to
quote:

Vehicle make and model would be helpful…


Posted with car info. I assumed that I could get a response based on the fact that I'm asking whether or not a CVT should be flushed vs. changed.
Posted by LongueCarabine
Pointe Aux Pins, LA
Member since Jan 2011
8205 posts
Posted on 2/28/23 at 2:26 pm to
Sorry I can’t help but I do know there’s all kinds of conflicting information out there about Mazda CVT’s.

Posted by hjl0820
Member since Aug 2017
77 posts
Posted on 2/28/23 at 2:28 pm to
Agco automotive, may take a few days to get In But they have always been honest with me. Price is good for what you get. Some will say they are high priced, but I trust them so I don’t mind spending extra. I have always been told that a flush is just that, flush your money down the drain
Posted by S1C EM
Athens, GA
Member since Nov 2007
11585 posts
Posted on 2/28/23 at 2:30 pm to
Mileage? Ever had a service done on the tranny before? If high mileage and never done a service, don't touch it. It's going to fail sooner rather than later and you might as well ride it out.

And don't let some chain like FIrestone or NTB do a tranny service. That's just asking for trouble.
Posted by AP83
Cottonport
Member since Sep 2009
2710 posts
Posted on 2/28/23 at 2:31 pm to
How many miles? If you have high mileage and haven't done one it may not be a good idea to do it. When I worked at a mechanic shop during college if a car never had it changed and was over 95k miles we wouldn't do them.
Posted by 777Tiger
Member since Mar 2011
73856 posts
Posted on 2/28/23 at 2:31 pm to
quote:

If high mileage and never done a service, don't touch it. It's going to fail sooner rather than later and you might as well ride it out.



I believe that to be a myth


quote:

don't let some chain like FIrestone or NTB do a tranny service.


I believe this to be a fact
Posted by shiftworker
LP
Member since Dec 2011
5099 posts
Posted on 2/28/23 at 2:32 pm to
quote:

It's going to fail sooner rather than later




This is the correct answer when dealing with a CVT.
Posted by billjamin
Houston
Member since Jun 2019
12393 posts
Posted on 2/28/23 at 2:33 pm to
Sell it while it's still worth something and get a non-CVT.
Posted by JodyPlauche
Baton Rouge
Member since Aug 2009
8723 posts
Posted on 2/28/23 at 2:35 pm to
quote:

Sell it while it's still worth something and get a non-CVT.


This...I have a 2016 Nissan Sentra and it's a piece of shite.
Posted by WHATASHAME
Louisiana
Member since Sep 2009
610 posts
Posted on 2/28/23 at 2:36 pm to
A flush is more thorough than a change and more expensive. All depends on how much longer you plan on keeping it. A flush will require a visit to the dealer or a shop with the equipment. You can do a change in your driveway.
Posted by AP83
Cottonport
Member since Sep 2009
2710 posts
Posted on 2/28/23 at 2:36 pm to
not really a myth. The new oil is very thin and has a lot of detergents in it that can eat away build up and leak where as the older oil has become much thicker and less harsh on the metals. Mechanic shops wouldn't just turn down money if it didn't cause issues.
Posted by 777Tiger
Member since Mar 2011
73856 posts
Posted on 2/28/23 at 2:39 pm to
quote:

not really a myth. The new oil is very thin and has a lot of detergents in it that can eat away build up and leak where as the older oil has become much thicker and less harsh on the metals. Mechanic shops wouldn't just turn down money if it didn't cause issues.



not trying to start an argument but I've heard this all of my life and I've never had that experience or ever heard of anyone that I know ever have that experience
Posted by Cypressknee
Member since Jul 2017
1195 posts
Posted on 2/28/23 at 2:41 pm to
Negative on a flush. Pull the pan, change the filter, top it back off or leave it alone.
Posted by cdcleary
Member since Mar 2013
205 posts
Posted on 2/28/23 at 2:42 pm to
Bryan's Mobile Car Care
225-673-6978

He may not answer today since he's adding on to his shop, but he's my go to mechanic.
Posted by S1C EM
Athens, GA
Member since Nov 2007
11585 posts
Posted on 2/28/23 at 2:43 pm to
quote:

I believe that to be a myth


It's a Nissan Jatco CVT. It's not a myth.

As for a regular transmission.....there's certainly some debate here. Personally, mine always get serviced regularly, so I don't have to test it out. That said, what's more likely is that cars over 100k miles are already having issues once a person decides to get a service done, hoping the service will fix it. It doesn't (it's not magic), the transmission ultimately fails, and they then blame the shop that did the service. This is why shops won't touch them over 100k if you can't prove you've done services previously.
Posted by jaytothen
Member since Jan 2020
6404 posts
Posted on 2/28/23 at 2:43 pm to
quote:

tranny service


What a weird service for Firestone to offer
Posted by S1C EM
Athens, GA
Member since Nov 2007
11585 posts
Posted on 2/28/23 at 2:45 pm to
quote:

What a weird service for Firestone to offer





I was waiting for someone to say it.
Posted by Planetarium
Member since Jul 2020
233 posts
Posted on 2/28/23 at 6:02 pm to
quote:

Negative on a flush. Pull the pan, change the filter, top it back off or leave it alone.


This is SOLID advice.
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