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Discussion Starter #1
Quick DIY i did tonight....

Get yourself some gear oil that you like, i chose mobil 1 sense thats the engine oil i use, its virtually impossible to find the 75w85 that KIA recommends in the book, but the 75W90 will be perfectly fine



with doing transmission fluids, its always best to take out the fill bolt first, just incase you dont get the drain bolt out you wont have an empty transmission, its the bolt pointed towards the top of the screen, 17mm:



next, loosen and remove the drain bolt, also 17mm, it's the bigger bolt right in the middle:



of course engineers in all their wisdom shows with some cars, lol, also you'll know if your draining the correct stuff, gear oil has a distinct odor.



The gear oil comes out quicker than engine oil to me... anyways, get a hose and attach it to the top of the bottle, then quickly snake the hose into the engine bay and into the fill hole, gear oil is thicker than regular engine oil, so it does go slower... just let the bottle rest in place where its draining. I usually poke a hole with a knife in the bottom of the bottle which should now be pointed up, helps with the air escaping so the transmission fluid will fill quicker.



once its full... takes 1.9 qts, it'll either slightly drip out if its alittle full, or not at all. Ive done this on my soul 6spd and now my forte and i havent had it come out the fill hole...

after its full, pop the fill bolt back in and your done.
 

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Discussion Starter #3
6300. Just did it just because. Can't do much to the cars right now so inexpensive maintenance is something to do lol
 

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Did you notice your shifts were smoother? I sometimes feel like going into 3rd or 4th meets a wall, for a lack of better word. I want to do a short shifter mod but the stock shifter isn't too bad. I just want a more precise shifter if that's what aftermarket is for, then I wouldn't mind spending the money for it.
 

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I like my Cosmo short shifter. The tranny shifts smoother after its warm. During the first couple of rows it still feels gritty. But its really smooth when warmed up.
 

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I drove my car today for about 2 hrs of constant city driving and noticed that my transmission felt oddly "crunchy".

Going into any gear it felt like it never went in smooth. Clutch to the floor each time and still felt a crunch. Didn't feel or hear the gears grind at all though.

I actually find my car drives smoother when the fluid is cold. Wondering if a better fluid would improve the crunchy shifting. It only has 2000 kms on it.
 

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I like my Cosmo short shifter. The tranny shifts smoother after its warm. During the first couple of rows it still feels gritty. But its really smooth when warmed up.
How much shorter throw is your cosmo vs stock? do you personally feel its better all around or because I hate my six gear location and I'm curious if that helps to you..
 

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You should probably say in the title that this is for a manual transmission. Don't want a non-car person to try to do this to their auto trans car.
 
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Discussion Starter #10
The factory fluid is garbage, changed it out to some amsoil fluid and was amazed at the difference in shift quality
only thing that stops me from going to amsoil is the availability... and if its available in a store... its an astronomical price
 

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Discussion Starter #11
You should probably say in the title that this is for a manual transmission. Don't want a non-car person to try to do this to their auto trans car.
the auto and manual trannies are completely different, so i would hope someone would stop when they realized the auto tranny drain bolt is a 24mm
 

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Discussion Starter #12
How much shorter throw is your cosmo vs stock? do you personally feel its better all around or because I hate my six gear location and I'm curious if that helps to you..
im pretty ok with it... i cant remember how long the throw was when my car had the stock shifter... but if i remember correctly its a pretty significant change... i kinda just want to raise the base of the shifter up a little or get an extension... but if i were to go that route i would need to delete the reverse lockout and im not sure on that yet...
 
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Discussion Starter #13
How much shorter throw is your cosmo vs stock? do you personally feel its better all around or because I hate my six gear location and I'm curious if that helps to you..
im pretty ok with it... i cant remember how long the throw was when my car had the stock shifter... but if i remember correctly its a pretty significant change... i kinda just want to raise the base of the shifter up a little or get an extension... but if i were to go that route i would need to delete the reverse lockout and im not sure on that yet...
 

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The tranny shifts smoother after its warm. During the first couple of rows it still feels gritty. But its really smooth when warmed up.
Was 75W85 better in cold?

I admit this tramission is very smooth. Comparing to tow Hyundais I had - selecting 1 or 2 was a disaster on cold. Here it goes smooth.
However, they were very picky regarding oil.

They all required GL 4 75W85. I put one day 75W90, full synthetic as that was the only one I could find. Well, was not so great. Some extra noise, worse shifting. Going back to GL4 75W85 by Redline solved all problems. Well, 1 and 2 were still slightly notchy and stiff, but better.

So, how it is here? Redline does have 75W85. Also does KIA/Hyundai and it was even cheaper at Hyundai to get their OEM 75W85 than Redline - 9.85 vs 15.50 respectively.
 

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Discussion Starter #16
i switched to redline when i read about the GL rating... on my youtube i have the redline oil change
 

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Just follow this guide and change fluid oil..I am using Pentosin MF2 and the shift is so much smoother..

Sent from my LG-D851 using Tapatalk
 

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Discussion Starter #18
Cool thanks for posting
 

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Going to do this soon too. Redline is gonna run me $20 a quart, so are you pleased with that decision after X amount of miles?

And only 1.9L drains out?
 

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Discussion Starter #20
its usually about 2 quarts.... give or take depending on the cars angle and how long you let it drain....

im pleased with it.... after some time you forget that you changed the oil... but it seems to be doing well. ... and for something that doesnt take much money or much time is ok with me.
 
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