need some help!
I've owned 4 LS1s, my '00 Trans Am used about 1 quart every 800-1000 miles, this one was my worst by far. My '98 Z28 doesn't seem to use even a drop of oil. My '99 and '02 both fell somewhere inbetween.
What kind of oil are you using? I have used Mobil 1 in the past, and my car would burn a quart every 1 or 2k miles.
I will second SOMbitch's question.
Trending Topics
To the OP, if you're losing 1 quart per 1,000 miles, that's not great but it's also not cause to tear the motor down either IMO. Like the others have said, check again for leaks. If none are found, it's probably burning off via the PCV system or getting past the rings.
This is what I would try first. M1 runs on the thin side, so I switched to their 0w40 weight. LS1s seem to respond well to oils that are on the heavy side of a 30 weight or the light side of a 40 weight. Been using the 0w40 now for 5 years in my LS1s with great results and rarely lose a drop between changes.
The Best V8 Stories One Small Block at Time
M1 0w40 and 5w40 are much better for use in an LS1 than the 30 weight grades of M1. My '98 has never burned a drop of it, and my '02 uses between 0 and .5 quart in ~5,000 mile change intervals.





