Transmission fluid change
05-18-20, 07:08 PM
#316
can anyone recommend a shop that could do this is MA?
I asked the dealer, but they said no, because 'its sealed!'
I asked the dealer, but they said no, because 'its sealed!'
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WRD4chano (05-18-20)
05-19-20, 09:05 AM
#318
One thing I would watch for is how the shop does it. They should be just doing a drain and fill, not a power flush. The guy I brought it too said that a power flush is the worst thing you can do because it stirs up sediment that had settled into the cracks and crevices of the transmission and once that stuff flows to the valve bodies, it's all over.
05-19-20, 09:43 AM
#319
Love every time this thread pops up, so many people getting this job done on their own. Speaking of which, need to order a few more bottles of fluid and do this one more time on mine before the weather gets too much hotter here in Houston.
05-19-20, 06:49 PM
#320
I had a transmission shop do mine when I first bought it at 73k miles. That was the first time it was done.
One thing I would watch for is how the shop does it. They should be just doing a drain and fill, not a power flush. The guy I brought it too said that a power flush is the worst thing you can do because it stirs up sediment that had settled into the cracks and crevices of the transmission and once that stuff flows to the valve bodies, it's all over.
One thing I would watch for is how the shop does it. They should be just doing a drain and fill, not a power flush. The guy I brought it too said that a power flush is the worst thing you can do because it stirs up sediment that had settled into the cracks and crevices of the transmission and once that stuff flows to the valve bodies, it's all over.
Ive reached out to some friends who work on trucks and theyve recommend a transmission shop thats fairly close to me, so ill reach out to them and ask if they know how to work on these trucks.
06-29-20, 12:48 PM
#321
Transmission fluid change
I'm changing the front and rear diff fluids as well as the transfer case as recommended in the service manual. It also recommends changing the transmission fluid around 60,000 miles if you tow so I called the dealer and asked about this and they said "NO, it's a SEALED unit...we don't touch those." Why does it recommend replacing in the manual? This makes NO sense why there's conflicting information.
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Acrad (06-29-20)
07-02-20, 06:23 AM
#325
80,000 with some towing miles. I can understand if they want to keep costs lower or whatever but the manual states to change the fluid yet the dealer won't do it. How does that make sense? They don't seem to care about keeping costs lower when they recommend changing diff fluids at 15,000 miles.
07-02-20, 09:33 AM
#326
Pole Position
So why do the manufacturers do this ? ... because they know that no issues will result during the warranty period, so they have no liability. For them, this is all about the marketing spin of doing a "one-up" on the competition by being "lower(er) maintenance". The manufacturers also know that the average new car owner flips their new vehicle every 6-years ... so will not experience any resulting issues ... that will fall on subsequent owner(s).
One can filter through the endless ego driven forum arguments on recommended fluids and fluid change intervals ... or can get to the bottom line by cutting through the personal opinion, marketing spin and US regulations that compromise using the best fluid specifications in the interest of fuel economy ... and extended change intervals in the interest of the environment and improved sales.
So for me ... who owns my vehicles forever ... I research the non-US recommendations (for the Toyota Prado) ... Japan, Australia, etc ... for fluid specifications and change intervals. At least for now, they have not been completely corrupted by special interest(s).
Last edited by ASE; 07-02-20 at 02:20 PM.
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nuclearn8 (07-02-20)
07-02-20, 01:23 PM
#327
Pole Position
I'm changing the front and rear diff fluids as well as the transfer case as recommended in the service manual. It also recommends changing the transmission fluid around 60,000 miles if you tow so I called the dealer and asked about this and they said "NO, it's a SEALED unit...we don't touch those." Why does it recommend replacing in the manual? This makes NO sense why there's conflicting information.
Last edited by ASE; 07-02-20 at 01:31 PM.
07-02-20, 01:48 PM
#328
I really don't think it's necessary to change the fluid like this. The 100% method. Aisin recommends a drain and refill this is perfectly fine. You are not gaining anything by changing out all the fluid at the same time. IMO, consistently adding new fluid at the 30k interval is ideal. This is how guys in the LS forums are getting very high mileage out of their transmissions. It is better to consistently add new fluid more often vs waiting until high mileage and doing it all at once. It's all about maintaining that level of those additives that prevent clutch pack wear. If I'm using the right terminology.
Last edited by Lavrishevo; 07-02-20 at 01:58 PM.
07-03-20, 08:36 PM
#329
While on the subject of simply doing a drain-n-fill, I have a question: when doing just a single drain-n-fill, should use only the Toyota factory fluid, or can you add a compatible synthetic? In other words, can you mix OEM and an aftermarket synthetic? Thanks!
07-03-20, 09:14 PM
#330
Lead Lap
Unless the formulas are spec wise different...you shouldnt have a problem. Anyways a drain and fill your not able to change the majority of fluid anyways so until you are able to work a couple of these in, you will still be using factory fluid for the most part