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re: Would you change the transmission fluid for the first time on a car with 117,000 miles?
Posted on 7/27/23 at 8:09 am to Ricardo
Posted on 7/27/23 at 8:09 am to Ricardo
quote:so you know my wife too?
he worst thing I’ve ever seen though is people coasting backwards and throwing the vehicle into drive before coming to a stop.
0
Posted on 7/27/23 at 8:09 am to Byrdybyrd05
quote:
2008 Toyota Corolla
My 2012 Tacoma owner's manual says to never change the trans fluid. I've asked mechanics and they agree.
But the manual also says to change the differential and transfer case fluid every 30K, which sounds crazy to me. It has 228,000 miles on it and never misses a shift.
I change the oil every 5K, and the diff and transfer case oil every 50k or so.
Posted on 7/27/23 at 8:15 am to Byrdybyrd05
New fluid has a lot of detergents that can be harmful if you have issues with a transmission. Used to have a shop and we saw that replacing all the fluid would affect seals and sometimes finish off the transmission.
I usually use a pump and put it down the dipstick and pump out about a quart or two. Replacing it a little at a time will help keep the internal seals from hardening, but not be so harsh. The seals need to remain elastic so they can work properly. The old fluid loses its ability to keep the seals elastic and this causes loss of pressure and trans failures. The fluid usually last for a very long time unless the transmission has issues or the fluid overheats. Most people freak out when they drop the pan and see metal collected on the magnet in the pan. This is normal materials that are from the casting and machining of the new transmission. Also, burnt or rotten smelling fluid is a sign of a failing transmission and changing the fluid at that time is probably useless.
I usually use a pump and put it down the dipstick and pump out about a quart or two. Replacing it a little at a time will help keep the internal seals from hardening, but not be so harsh. The seals need to remain elastic so they can work properly. The old fluid loses its ability to keep the seals elastic and this causes loss of pressure and trans failures. The fluid usually last for a very long time unless the transmission has issues or the fluid overheats. Most people freak out when they drop the pan and see metal collected on the magnet in the pan. This is normal materials that are from the casting and machining of the new transmission. Also, burnt or rotten smelling fluid is a sign of a failing transmission and changing the fluid at that time is probably useless.
Posted on 7/27/23 at 9:09 am to Byrdybyrd05
fluid and filter, yes
Transmission flush, Hell no
Transmission flush, Hell no
Posted on 7/27/23 at 9:15 am to Cool Hand Luke
quote:
I have a 2010 Avalon with 270000. Never changed the transmission fluid. It is starting to slip, maybe I should change it soon.
Negative. Once slipping.. will slip forever more. You can put additives in it to lessen it for a while, but save the maintenance money and use it on replacement money.
Posted on 7/27/23 at 9:24 am to Byrdybyrd05
If the old fluid isnt burnt, u should be fine with a Corolla.
Posted on 7/27/23 at 9:24 am to CleverUserName
While on the subject, my 16 4runner 4x4 just hit 85k miles. Other than obvious oil changes and air filters, is there anything I should be doing at this point? It still runs great. Mileage is worse than it was originally but also have larger tires now.
Posted on 7/27/23 at 9:26 am to YumYum Sauce
quote:
While on the subject, my 16 4runner 4x4 just hit 85k miles. Other than obvious oil changes and air filters, is there anything I should be doing at this point? It still runs great. Mileage is worse than it was originally but also have larger tires now.
if you go off-roading or tow, do the differential fluid
Posted on 7/27/23 at 10:02 am to Dragula
Tundra with 300k. Original fluid. Runs like it always has.
Posted on 7/27/23 at 11:33 am to Dragula
quote:
if you go off-roading or tow, do the differential fluid
never
Posted on 7/27/23 at 11:37 am to Byrdybyrd05
I’m 50 and have owned many high mileage cars, from GMCs, Toyotas, Hondas, Pontiacs, Mazdas, Nissans, Fords. I’ve never had the transmission fluid changed in any of them. I’ve had one catastrophic failure from a vehicle:2013 Nissan Rogue.
Posted on 7/27/23 at 11:43 am to YumYum Sauce
quote:
never
I would change the fluid at 100K IMO. You're so close, I'd just wait until 100K when a lot of maintenance is due. With synthetics and just DD'ing, every 100K is fine, I don't follow Toyota recommendation. This is like the oil change every 3K mile recommendation.
quote:
Per Toyota Service manual for the 5th Gen 4Runner:
Differentials: 15,000 miles when heavily loaded, or with roof-mounted gear
Transfer case: 30,000 miles when driving dirty or dusty roads
Posted on 7/27/23 at 11:45 am to Byrdybyrd05
You’ll get lots of recommendations not to change the fluid but my opinion is get all of the dirty stuff out of there and drop the pan and change the filter.
Did this on a buddies 2008 Tundra with 196k original miles and the smoothness and shifting of the transmission afterwards was noticeable. The pan gasket had also started to seep and leak over that time so another reason to drop the pan.
I did a full exchange 4 qts at a time through the cooler line and put about 20 qts through.
The guy still owns the truck and it is at 230k and counting.
The only guarantee with “lifetime” fluid is it will last as long as the transmission when the transmission actually fails. That day will be sooner with old nasty fluid circulating in the unit.
Did this on a buddies 2008 Tundra with 196k original miles and the smoothness and shifting of the transmission afterwards was noticeable. The pan gasket had also started to seep and leak over that time so another reason to drop the pan.
I did a full exchange 4 qts at a time through the cooler line and put about 20 qts through.
The guy still owns the truck and it is at 230k and counting.
The only guarantee with “lifetime” fluid is it will last as long as the transmission when the transmission actually fails. That day will be sooner with old nasty fluid circulating in the unit.
Posted on 7/27/23 at 12:19 pm to Byrdybyrd05
If it ain't broke, I'd leave it alone. You're gonna get in there and mess with it and suddenly next week, everything is gonna be fricked.
Posted on 7/27/23 at 12:31 pm to Byrdybyrd05
quote:
2008 Toyota Corolla
Should be fine, as long as the car hasn't been abused in it's life.
Posted on 7/27/23 at 12:35 pm to Byrdybyrd05
quote:
2008 Toyota Corolla
Yes.
Drain and fill once.
Pull pan and clean magnets/filter if not a screen.
Drain and fill again.
Posted on 7/27/23 at 12:39 pm to YumYum Sauce
Valvoline full syn products in the trans, tcase, and diffs. Change diffs and tcase every 100k. Drain and fill trans every 20 or 30k.
Mobil1 5w30 or 0w40 in the engine.
It'll outlast you.
Mobil1 5w30 or 0w40 in the engine.
It'll outlast you.
Posted on 7/27/23 at 1:27 pm to Byrdybyrd05
quote:
Would you change the transmission fluid for the first time on a car with 117,000 miles?
Yes is the correct answer. Especially if its a Honda.
Posted on 7/27/23 at 2:34 pm to Cracker
You can buy the correct Toyota fluid cheaper on eBay.
And as previously posted, do not let anyone pump the fluid.
Drop the pan or find another mechanic who does
And as previously posted, do not let anyone pump the fluid.
Drop the pan or find another mechanic who does
Posted on 7/27/23 at 2:50 pm to Byrdybyrd05
I always follow with what the manufacturer recommends except for a BMW I owned. Almost everyone on a blog that changed it developed transmission issues and those that didn’t had no issues still. Never had issues with mine.
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