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Old 01-15-2010, 06:16 PM
 
1,329 posts, read 3,346,794 times
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I have heard that this is the key to keeping cars with reputations for flaky transmissions running like clockwork. What do you think?
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Old 01-15-2010, 06:18 PM
 
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Owner's manual should tell you the exact interval.

30k was mostly for older cars.
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Old 01-15-2010, 07:15 PM
 
Location: New Jersey
2,715 posts, read 11,064,526 times
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What year/make/model?

On newer Toyota's the transy fluid is lifetime and never needs replacing (according to Toyota). I find hard to believe, but 30K would be too early for these Toyos.
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Old 01-15-2010, 07:25 PM
 
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Its not require maintenance or a interval given on either Honda or toyotas I've owneed but there is no way I wouldn't personally.Never had a transmiison problem either and I keep most of my vehciles 10 years at least.
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Old 01-15-2010, 07:59 PM
 
Location: Maine
898 posts, read 1,325,606 times
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None of my automatic vehicles have ever called for a flush. The owners manual has only ever specified draining, filter, gasket, and refill. I think the "flush" service is a bit of a rip-off myself. I figure as long as it is changed in the specified interval, it should be fine. Lasted over 200 k before I gave it away.

Last edited by melinuxfool; 01-15-2010 at 08:26 PM..
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Old 01-15-2010, 08:15 PM
 
Location: Clear Lake, Houston TX
8,373 posts, read 29,297,872 times
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By using one of those T-Tech or RTI flush services, you are asking for trouble. I worked at a shop for 2+ years and I personally witnessed busted seals, fluid shooting out of the dipstick tube, and trans that went nearly dry while these robot-looking machines are hooked up for the ''flush.'' Those things are NOT maintained well enough in many shops to be considered reliable.

Nowadays I wouldn't go with any generic fluid... dealership only. Usually these fluids are synthetic 60k, 100k or even lifetime fluids.

My Dodge had one dealership service (pan drop + filter) at 60k; now I have 165k and probably should do it again. But it still shifts fine so I'll probably keep it going a little more.

(According to some, it should've been dead a long time ago-- so should drop the money on it if it's already near the end of its life?)
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Old 01-15-2010, 09:16 PM
 
1,329 posts, read 3,346,794 times
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Quote:
Originally Posted by tstone View Post
By using one of those T-Tech or RTI flush services, you are asking for trouble. I worked at a shop for 2+ years and I personally witnessed busted seals, fluid shooting out of the dipstick tube, and trans that went nearly dry while these robot-looking machines are hooked up for the ''flush.'' Those things are NOT maintained well enough in many shops to be considered reliable.
Thanks for the tip. I had heard about those machines wreaking havoc. I may end up doing this myself - replacing the filter and running new fluid into the system.
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Old 01-16-2010, 05:13 AM
 
404 posts, read 1,425,846 times
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hmm....

my new gen Hyundai says "replace" fluid after 105,000 miles. but it says "severe usage" is every 30,000 miles

which is a BIG discrepancy i would tend not to trust. i used to do my old volvo 740 every 20,000 miles for goodness sakes

what is "severe usage" according to my owners manual?


"repeatedly driving distances less then 5 miles in normal temps and less then 10 miles in freezing temps"

"driving on rough, dusty, gravelly, salt covered unpaved roads" (how does a trans KNOW what kind of road its on? maybe it has to shift more or something?)

"driving in sandy areas"

"daily driving in heavy traffic with ambient temps over 90F"

"driving on uphill, downhill, or mountain roads"

"car is used for towing / hauling heavy stuff"

"driving a patrol car, delivery car, taxi, etc"



so, if any one or all of those things are present, it recommends every 30.000m. otherwise first scheduled change is 105,000m

which i am not really comfy with. because that is a lot of miles and time. i am only an average driver when it comes to millage

my car has almost 30,000m on it now. i will see what the dealer says and w/e it is...take it with a grain of salt. car is under full warranty until mid 2013, anyway. still, i would tend to do this every 30,000m regardless. just to be "better safe then sorry" as i keep cars for some years
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Old 01-16-2010, 05:23 AM
 
Location: City of Central
1,837 posts, read 4,094,376 times
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DO NOT FLUSH !!! Drain and replace fluid and filter as per the owners manual . Use the correct fluid . Some transmissions , like the Nissan CVT , use a proprietary fluid that is not available at auto parts stores .
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