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Discussion Starter · #1 ·
Hi Guys I have a 2005 Sorento EX Manual. The transmission has been slipping when put under any stress like hill climbing. Research shows me that it could need the oil changing.


What type and make of oil do I need?



Many Thanks for any replies

John
 

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I note that you have manual transmission, it should use 75w90 transmission oil.
Useful site that lists all oils for Kia Sorento is here
http://www.opieoils.co.uk/product-f...to/DIESEL/sorento/14953/product-finder-2.aspx

As its a manual I doubt the oil is the cause of it slipping, that sounds more like the clutch to me.

If it was an automatic then it should have the Kia brand auto trans fluid available from a Kia dealer
Apoloil Red-1 ATF although some people have used Motul Multi ATF and Castrol Transmax E

The transfer box should have <a>1.5 L of ATF (Dexron III) or equivalent. </a>
<a>STANDARD FRONT DIFF OIL - 1.5 L of SAE90 Gear Oil (GL5) or equivalent. </a>
<a>STANDARD DIFF OIL - 2 L of 85w-90 Gear Oil (Limited Slip) or equivalent.</a>

Colb



Edited by: colb
 

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If yours ismanualany slippage must be down to clutch.
 

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Discussion Starter · #4 ·
Thanks for the comments.


I may be using the wrong word when I say slippage




It's more of a knocking! when under stress. On the flat it pulls Ok.



Thanks John
 

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I think you will probably have to have it plugged into diagnostics it is likely to be o2 or anti knock sensor.
 

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Hi, I know this an old thread but did you ever find out what this was? Mine is doing the exact same thing and, my mechanic hasn't got a clue. Have had the transmission fluid replaced and new fuel filter but still doing it
 
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