well i just changed my oil yesterday, it has been 3 months pretty much, last time i changed it was on halloween, anyways i used mobile 1 5w30 last time, 6 qts of it, anyways when i changed it this time, i drained the oil and poured it back in the bottles i had the oil originally in, well when i poured the old oil back in the bottles, it only equaled about 4 1/2 qts, so did i burn up 1 1/2 qts and is this normal? it never leaked or anything, so i dont know if this is just normal or not, let me know fellas thx, if it matters i got a 01 ECSB 5.3

 

Probably lost half a quart or better in the oil filter. Any engine will use a little oil if driven hard. Check your PCV valve also, a bad one can cause oil to be sucked into the intake. Later

Dave

 

Don't forget the 3/4 of a quart that was coating the drain pan. You remember - you wiped it out with paper towels.

Mike

 

You have to make sure your motor is hot too, or else it won't all come out. But yes I burn oil, even more so with the cam swap and shifting at 6400. Never keep track but I'm guessing 1 1/2 to 2 quarts between oil changes

 

Also, with the type of pistons that GM uses, they are a little smaller than they should be when they are cold. That causes a little oil to pass till they get warmed up. It's burns even more if you don't let the engine warm up properly before revving it high.

 

Wow! I am trying to sell my 1983 Chevy truck. It is 23 years old and still has the original motor in it. It has had Mobil 1 synthetic run in it since 1987. I cringe when I have to tell prospective buyers that it uses 1/2 quart between oil changes.

I guess maybe 1/2 quart is not so bad.

Mike