Guest Anonymous Posted September 16, 2002 Report Share Posted September 16, 2002 when i switched to synthetic, i went one quart of synthetic at a time per oil change. 3.5 regular/1 synthetic, next oil change 2.5 regular. 2 synthetic, etc. I thought about that also. Does Mobile 1 make non-synthetic that I can mix the syn. with? Also, I use Lucas oil stabilizer. Will 1 qt. of that, 3 qts. of regular oil and 1 qt. of synthetic be ok to mix? Quote Link to comment Share on other sites More sharing options...
NeverSayDie Posted September 17, 2002 Report Share Posted September 17, 2002 The crud I was talking about was everywhere, heads, lifter valley, pan, all of it full of crud! Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted September 17, 2002 Report Share Posted September 17, 2002 The crud I was talking about was everywhere, heads, lifter valley, pan, all of it full of crud! Interesting! There was ZERO crud in my Cutlass' engine when I tore the heads off it at 168k miles. I had run Castrol GTX 100% up to that point. Since then I've switched to Wal-Mart SuperTech (after learning Castrol is a sleazy company, calling Group III oils "synthetic"), but maybe I shouldn't have! I have pics too, my engine was CLEAN! Maybe this was a few years ago before motor oil passed the GF2 spec? Quote Link to comment Share on other sites More sharing options...
Brian P Posted September 17, 2002 Report Share Posted September 17, 2002 I'll second that! Ive opened up my motor a couple of times, and just recently at 165k, NO sludge at all, nowhere! I did 3000-3500 mile oil changes with Quaker state oil, and just recently switched to Mobil synthetic blend. I got the car with 83k so for the last 82k it's been driven a lot...I doubled its mileage in less than 3 years. I think the long drives help with engine cleanliness too. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted September 17, 2002 Report Share Posted September 17, 2002 aq Quote Link to comment Share on other sites More sharing options...
NeverSayDie Posted September 18, 2002 Report Share Posted September 18, 2002 Well, I suppose I am destined to live a life of crud...'cept for when I get finished building my engine...I'mgonna change the oil wevery week I guess Quote Link to comment Share on other sites More sharing options...
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