mlimseth

I filled it up in the moring 08:00 and at 15:00 and 22:00 and next moring 08:00 with 250ml eatch time 1L total. Around 300ml was added to the oil, rest puked all over my garage and in my face, total mess. changed the oil and oil filter. depending how is goes i can consider to try again.

Thanks for the replys. I did a piston soak for 24 houres with some local "Internal engine cleaner that removes combustion residues, soot, deposits, water and glycol." A lot of white smoke and now my exhaust was like a chimney! Run ruff for first 5 km but now all back to normal. So hope it have helped, need to drive for some weeks before i can conclude something.

Yes, but amazon dosent ship that produkt to Norway.

The next thing i will try is a piston soak, on the internett Berryman B12 lockes to be the stuff. But i have problems order it to Norway. But i find other "Fuel Injector Cleaners".

Hi 1. I did a check on the PCV valve but not sure how to tell if its bad or not. Its locks clean and when i blowed into the little "funnel" it was not blocked. 2. Then i did the compression test. Engine was up to temp dry. 1. 12,5 ---- 2. 12.5-----3. 11.5 -----4. 12 Bar Wet. 1.14.5 ------2.14--------3. 14.-------4. 14 Bar But it locks like i have some sort of oil leak close to the filler cap. Its oil residue on coil 1, around filler cap and down the side off the engine. Maybe is a leak under the side plastic cover that hold the filler cap. The coolant is also clean, no oil.

At Skoda under the oil consumption test they concluded with internal use off oil. They checked for leakage and checked that the turbo was in good condition. The exhausts are not like a chimney, its lock normal.

Thanks for the input! yes i can do a compression test.

If that is the case and solves it will be good. What about do a compression test on the cylinders will that tell something ?

Hi, yes they did that when i did the oil consumtion test at Skoda. Have topped up about 3 liters since i bought the car.

Hi I just bought a used Octavia 2015 1,8L petrol done 210.000km. It has a huge oil consumption at 1,5L at 1000km. The seller has bankrupt itself just after I bought the car so I am stuck with it. Shuld i try thicker oil like 10W-40 or will it just do more harm to the engine ?