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Hi all,
I have kia sorento 64 plate. About 3 months ago a had to top up oil as alert came up on dash board. Since then I started checking oil level regularly and I have noticed it is going down again. I must say there is no oil leak - no marks on driveway. One of my mates said that I should change oil in to diffrent one as I was using the same one for last 3 years(shell helix ultra 5W-30 ect c3). He is using Motul 8100 eco-nergy SAE 5W-30.
My question is will that solve the issue? Any one have the same issue? And have you got any oil recommendation?
 

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Hi Mark - type of engine and mileage would perhaps help any potential answers.
 

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'05 Sorento xse auto
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....if you start the engine and remove the oil filler cap..do you have air 'puffing' out which is quite normal but it's shouldn't appear 'oily'?......it's only a thought because earlier mk1's had a tendency to blow injector seals resulting in 'excessive blowby'...simple to check?
 

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Another option might be crankcase ventilation system and/or PCV valve clogged (PCV = Positive Crankcase Ventilation) .
 
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