Transmission fluid change in Sportage SX..... - Kia Forum

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post #1 of 26 (permalink) Old 01-30-2017, 02:42 PM Thread Starter
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Transmission fluid change in Sportage SX.....

How often should the transmission fluid be changed in the SX ? I can only find "severe service" recommendation at 60,000 miles. KIA seems big on regular oil changes but doesn't even have a dipstick for the transmission...(which I understand is becoming the norm on new cars.)
KIA seems to be about the only car manufacturer that has not embraced the CVT transmission.

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post #2 of 26 (permalink) Old 01-30-2017, 06:28 PM
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Standard multispeed transmissions are extremely well developed and have very tight tolerances. Fixed gears are stronger and more reliable than CVT's. If you want speed, you can get faster times on regular transmissions. In addition, CVT's actually have more wear forcing more oil changes and the possibility of failure earlier. In small cars with lower power, CVT's work extremely well. In bigger cars with bigger engines, reliability has been an issue. Eventually, all cars will be electric and the transmission the way we know it will go the way of the dodo bird.
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post #3 of 26 (permalink) Old 01-30-2017, 07:13 PM
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I have a hyundai Elantra 2013, manual sayes 100,000. after dealing with my 2004 spectra, I'm thinking if u want to keep car after 100.000 miles I would change it at least every 50,000 miles, just my thoughts I am a layman when it comes to cars.

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post #4 of 26 (permalink) Old 01-30-2017, 08:07 PM
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Yep, no more transmission dipsticks and it's a good thing they did that because someone could get an eye poked out by one of those nasty suckers if they don't handle it carefully. But Hyundai/KIA did replace those lethal weapons with a fluid level check procedure that came straight out of a horror movie. The whole thing is absolute, total stupidity IMO (an opinion shared by a number of others as well).

And then there is the mystery known as the tranny fluid change interval. If you're in the nebulous 'severe driving' category, then you're supposed to change the fluid every 60K. But if not, then the fluid magically becomes what KIA refers to as 'lifetime' fluid. How can this be? Perhaps there was a mistake made in the translation from Korean to English.

So all of this means you're free to change the tranny fluid whenever you want to. Or not at all, if you like the sound of that better. I chose to do the first drain-and-fill on my Forte at just under 80K. Four quarts drained out, and the exact same amount of new fluid went back in. Old and new fluid was at the same ambient temp, so no stupid level check procedure was required. The old Type 4 (aka SP IV) fluid was in exceptionally good condition after 80K miles, and I'll probably do another drain-and-fill at around 100K in the Spring. Although 'lifetime' is probably questionable, IMO this Type 4 fluid is similar in durability to ATF +4, for anyone who is familiar with that one.

Others prefer to do a full transfer using the transmission pump, and then do the level check. I don't have a problem with that approach, but would recommend avoiding ever getting a power flush done. Your choice - whatever floats your boat.
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post #5 of 26 (permalink) Old 01-30-2017, 09:02 PM
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That's interesting to hear as I replaced (full) ATF in my (wife's) Forte at 30K mi and it was dirty, and as expected saw some metal shavings on the drain plug too. I'm most def gonna stick with 30K mi drain and fill after this initial full ATF replacement.
Same on Sportage. And thou transfer case and diff don't call for fluid changes in the user's manual I'm gonna do those too to get all abrasive shavings out.
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post #6 of 26 (permalink) Old 01-30-2017, 09:51 PM
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Originally Posted by dubber09 View Post
That's interesting to hear as I replaced (full) ATF in my (wife's) Forte at 30K mi and it was dirty, and as expected saw some metal shavings on the drain plug too. ....
Well, that sure is a different experience than I had, and I'm really surprised you found dirty SP IV fluid, at only 30K miles. But metal shavings goes well beyond dirty fluid, and is typically a sign of a transmission problem. Have you noticed any issues with the performance of that tranny?
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post #7 of 26 (permalink) Old 01-30-2017, 10:53 PM
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My last new car was a 2002 with no dipstick. Sold it with 140k miles and the transmission was never serviced
and it worked as good as new.
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post #8 of 26 (permalink) Old 01-31-2017, 08:20 AM
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Originally Posted by SSportage View Post
My last new car was a 2002 with no dipstick. Sold it with 140k miles and the transmission was never serviced
and it worked as good as new.
What car was it?
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post #9 of 26 (permalink) Old 01-31-2017, 09:02 AM
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Quote:
Originally Posted by gabrielsimon View Post
KIA seems to be about the only car manufacturer that has not embraced the CVT transmission.
Thank God! This was one of my main reasons for buying the Kia. Take a look at the reliability of CVT's used by Mazda and Subaru. This really is a technology still in its infancy. Although the reliability issues are probably compounded by the fact that American drivers didn't like the original CVT without "shift points", so the manufacturer's had to revise the software controlling them to provide that "feels like its shifting" feature, which has added complexity to the system.
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post #10 of 26 (permalink) Old 01-31-2017, 09:08 AM
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Since I'm not seeing anyone mention changing the transmission filter I have to ask, are you changing the filter when you change the fluid? I know the answer is no for those doing the flush and fill, but what about those draining and refilling?
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