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250K Trans never serviced. Should I? #5455557 06/16/20 08:06 PM
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BBQSMOKE Offline OP
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My 2006 Toyota Sequoia will turn 250,000 miles in the next few week. Hate to say it, but I don't remember ever changing the transmission filter or fluid. It has no problems, but I've read you shouldn't change trans fluid on high mileage vehicles.

Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455572 06/16/20 08:24 PM
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bbhero Online Content
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Well I had 283,500 miles on my Nissan Altima VQ two door coupe with a CVT... Changed it 3 times in 6,500 miles. Did a 4th and final CVT fluid drain and refill just a little while ago...

Now just passed 310,000 miles with zero issues.

First drain and refill was wth Castrol CVT fluid and last 3 drain and refills we're with Eneos CVT fluid.


Nissan Altima 3.5 Coupe
Royal Purple 10w30 Carquest red 84356
"Treat your family like your friends and treat your friends like your family."
Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455591 06/16/20 08:48 PM
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HyundaiAbuser Offline
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If you do so absolutely do a drain and fill with a filter change if possible. With that many miles and no service a gradual introduction of new fluid is safer than a full exchange or flush. Id do 1 drain and fill with filter change (if possible), drive it for a week or so and decide whether another one is in order from there.


03 Hyundai Tiburon:
PP High Mileage 5w30
Redline MT85
94 Mazda B4000 (RIP)
Supertech 10w40 High Mileage
Valvoline Maxlife
Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455593 06/16/20 08:51 PM
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eljefino Offline
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Do it, and get the filter.

Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455614 06/16/20 09:13 PM
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Supersonic Offline
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Yes, do it all, filter, pan, and line exchange, should be easy unless you have the exhaust under the pan as some v8 4Runners do. Most mine been over 200k miles when I acquired them and likely had never had any prior transmission service.

Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455658 06/16/20 10:32 PM
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blufeb95 Offline
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Originally Posted by BBQSMOKE
My 2006 Toyota Sequoia will turn 250,000 miles in the next few week. Hate to say it, but I don't remember ever changing the transmission filter or fluid. It has no problems, but I've read you shouldn't change trans fluid on high mileage vehicles.

If it's got a dipstick inspect the color and smell, if it smells super burnt and foul then don't touch it.

Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455671 06/16/20 10:52 PM
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slacktide_bitog Offline
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If the car is shifting fine, there is nothing wrong with changing the fluid at this time smile

You're lucky because your Sienna has a drain plug for the transmission, so you don't even have to drop the pan happy

The best way to do a complete fluid exchange is to do multiple drain and fills, 3-4x total. The time between each drain can be anywhere from around the block to many months. It's probably easiest to drain the fluid when cold, measure, and refill with the same amount you drained. Do this once a week for 3-4 weeks and you will get a complete fluid change.

While 3-4 drain and fills will give you a thorough exchange, a single drain and fill will be sufficient. Most cars go to the junkyard on their factory fill ATF and never get their transmission fluid changed crzy

The only time it's not a good idea to change the ATF on a high-mileage transmission is when it's already acting up.

Maxlife is great stuff and widely available at Walmart for a good price. Castrol Full Synthetic is also a good choice. Those are my two favorites.

Re: 250K Trans never serviced. Should I? [Re: slacktide_bitog] #5455677 06/16/20 10:56 PM
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blufeb95 Offline
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Originally Posted by slacktide_bitog

Maxlife is great stuff and widely available at Walmart for a good price. Castrol Full Synthetic is also a good choice. Those are my two favorites.

I'm not sure if it's the same everywhere but when I was in a Dollar General recently I noticed they have quarts of maxlife ATF for only $3.95

Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455692 06/16/20 11:23 PM
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Redright9 Offline
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Yup, agree with everyone, why not do a transmission service? If it is working fine, shouldn't have any issue with some new fluid. May even shift smoother... If it was my vehicle, I would absolutely do a drain and fill..

Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455698 06/16/20 11:33 PM
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joegreen Offline
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It's a Toyota with a good functioning transmission. This is a great candidate even at higher miles to do a drain and fill. Replace the filter with an oem Toyota one as well.

Last edited by joegreen; 06/16/20 11:33 PM.

1978 Chevrolet k20
Engine: Delo 10w30xle
Transmission: Castrol transmax dex/merc

1984 Mercedes-Benz 300 turbo diesel
Engine: Delo 400 15w40le
Re: 250K Trans never serviced. Should I? [Re: HyundaiAbuser] #5455711 06/16/20 11:56 PM
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Marco620 Offline
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Originally Posted by HyundaiAbuser
If you do so absolutely do a drain and fill with a filter change if possible. With that many miles and no service a gradual introduction of new fluid is safer than a full exchange or flush. Id do 1 drain and fill with filter change (if possible), drive it for a week or so and decide whether another one is in order from there.


Agree.


15' Civic r18, 342,000 mi M1 0w30(3qt)/Redline 5w30(1qt),Castrol CVT Fluid,Redline Si-1
Dog Whisperer! Honda/Acura nerd; detest ethanol,wind,"green" ,solar & vegan.


Re: 250K Trans never serviced. Should I? [Re: Supersonic] #5455726 06/17/20 12:22 AM
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SteveG4 Offline
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Originally Posted by Supersonic
Yes, do it all, filter, pan, and line exchange, should be easy unless you have the exhaust under the pan as some v8 4Runners do. Most mine been over 200k miles when I acquired them and likely had never had any prior transmission service.

Bingo!


Somewhere between Alaska and Wisconsin...
2006 4WD Silverado LT Crew Cab & 2013 AWD Equinox
Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455738 06/17/20 01:06 AM
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JEL01 Offline
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Does this model have a filter or is it more of a screen?


Cars I maintain:
02 Mercedes CLK430
09 Honda Accord V6
13 Lexus RX350 AWD
02 Toyota Tundra 4x4
18 Lexus GX460
Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455770 06/17/20 05:20 AM
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WyrTwister Offline
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Yes , new filter with a drain and fill .


Wyr
God bless
Re: 250K Trans never serviced. Should I? [Re: BBQSMOKE] #5455790 06/17/20 05:49 AM
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supton Offline
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I tend to believe in full fluid exchanges but this is quite some miles. I'd be tempted to do a drain and fill a couple of times, then a full flush. It's only a couple extra gallons to do that and a bit of time (over a full exchange that is).

Pretty sure this is a strainer, not filter. But the magnets should be cleaned anyhow. 50/50 coin toss as to if it really matters to clean the magnets, whatever it has shed, it shed long ago and got caught on those magnets--is it worth messing with the gasket (and breaking any pan bolts) to clean that? I think I'd skip that step, just drain and fill a couple of times, then full flush down the road.


2011 Toyota Camry, base, 2.5L/6MT, 206k
2010 Toyota Tundra DC, 4.6L/6AT, 160k
2003 CRV, 2.4L/4AT, 161k
1999 Toyota Camry LE, 2.2L/4AT, 225k
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