Hi, Since I got my car last winter I have been slightly annoyed that the car used 1 quart every 3K. Changed the PCV valve, nothin. Tried mobil 1 synthetic, nothin. Last oil change I used Valvoline Max Life. It has been like 2K and my level has not budged on the dipstick. Fully recommend the stuff!! If you are at redline regulary you of course better change it every 3K like it's your job cause the stuff is not synthetic.