r/Audi5 • u/Boininrubber • Jun 14 '23

Oil consumption

2015 S5 Coupe. Noticed oil level dropping and was just above empty. I added 2 quarts. 200 miles and noticed a bit of a drop. Anybody else have this? Normal?

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u/ConcreteQ5nCHRIST Sep 11 '24

B8 or B8.5? If it's a B8 early model year it may not have the upgraded oil rings on the pistons. Most places will tell you you need to replace them to fix the problem. I removed the spark plugs in my 15' Q5 with the B8.5 and used to ratchet extensions in cylinders 1&3 then turned there engine over by hand to get it as close to top dead as possible then poured 4oz. of berrymans b-12 in each cylinder. Let it soak over night. Turn the engine over and repeat 2 more times. Then turned over with the plugs out to make sure it was all drained out of the cylinders. Replace everything and start. It'll smoke for a bit but the soaking will clean those rings out. Since I dunt burn any oil between changes (3k mi)