Good day, My Swede with a 2.4 (140hp) engine currently consumes about 400ml of oil per 1000km. (150TKM mileage, year 2006) Otherwise a dream car!! Performance is still completely available. Mostly I consume about 1000km hardly anything and then I suddenly consume on 500km 600ml of oil. Use the Castrol 0W-30 (recommended by Volvo workshop). Is an oil change to a viscous oil (e.g. Shell 0W-40) useful? Would you like to stay at 0W, as I soon live in Lapland and it there Very cold in winter The car was at Volvowerkstatt and was examined for oil loss. “Unfortunately” everything negative. Spark plugs also checked for residues. So nothing leads to an oil burning/oil loss. Have never seen a blue cloud in the back. What do you consume with this engine? Is that normal? Selling? Engine wash? Thank you for your help!! If information is missing, please ask.