I tried this stuff, told about it from my fav mechanic. I only tried it for a short time before switching to a Lucas product. I didn't see any improvement on the oil consumtion problem. I like most of us, check the oil on a very reg basis. Yesterday added 1/4 quart addjustment. On average I use a quart per 750 miles, and have for the past 5 years / 70K. We have a original engine with 144k on it. I have been VERY lucky.