I switched my girlfriends blazer 4.3 V6 with almost 200,000 miles on her, which burns some oil, to this oil, and after 4,000 miles ZERO consumption! I have tried other high mileage oils, and none of them have performed like this! This engine would easily run through a quart of synthetic 10w30 in a little over 2,000 miles. Anyone else have this experience, or have good results with this oil??