I have a 2004 (Ecotec obviously) Sunfire with about 168,000 miles on the clock. More and more I have noticed it burns oil like it is supposed to run on it. I have to add a quart about every 400-1,000 miles. I have noticed the time between top offs seems to decline as the oil gets older and dirtier. I have also noticed small amounts of oil on the inside of the air intake tube, assuming it it getting sucked in from the valve train. I use 5w30 conventional pennzoil religiously. I want to know if anyone else has encountered this problem and what your preferred oils are. Would stepping up in weight slightly (to 10w30) possibly slow/stop the consumption? Thanks in advance!
2004 Sunfire, 2.2L Ecotec, 5sp.
Tony C, I too also have that issue. I use 5w-30 Valvoline Sythetic for high mileage cars... Just started to notice my car drinking oil quicker than my S2000 around 120k miles.