I have a 2004 STI and was wondering how much oil should a new motor use. I have approx 6500 miles on and switched to Mobil 1, 10-30 at 3000 miles.I drove the car to Florida , and from 3000 to 6000, used about three quarters of a quart. My question is, is this normal ?When the car was new to 2800 miles , it used about 2/3 of a quart.My other question is, should I dis-continue the synthetic and use regular Castrol GTX 10-30?
I would really appreciate some input. The car is not driven hard. Just a little confused after reading different posts. Can you go back to regular oil after using Mobil 1 synthetic ?
Thanks in advance !!!