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Old Jun 10th, 2021, 23:14   #187
Yorkshire2160
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Last Online: Apr 5th, 2022 01:01
Join Date: Aug 2017
Location: Brighouse
Default Engine oil pole

I have had the rising oil problem this week,my car is 2.4 d d3 awd. I have owned the car for three years with no problem but this week had the oil issue. The engine is supposed to take 5.9 Ltr of oil. Volvo have told dealers and service centres to only put 70% in which is 4.2 litres to allow for oil rise. My service guy has explained to me ,that when the car regenerates diesel is injected into the cylinders on the exhaust stroke of the engine pushing extra diesel into the exhaust raising the temperature so the particles burn off the dpf. However with unburnt diesel in the cylinders it drops down past the piston rings and enters the sump thus rising the oil level. There are two very important reasons why this oil needs to be changed one is that diesel dilutes and brakes down the oil which it does not lubricate . The other and most important is if the level rises past 120% the risk is the engine can pull the oil through the turbo and your engine runs on. The result is complete destruction of your engine you won’t be able to turn it off with the key your engine revs way past the red line until it goes bang.
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