Quote:
Originally Posted by Hib Halverson
An engine using a qt. every 1500-1800 street miles is likely in need of some service...perhaps valve stem seals. That seems like a lot of oil use for an LT5 unless it's very high mileage or maybe using a 5W30 or 5W20.
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I've been using 10W-30 - both conventional and synthetic - since 8k miles
when I bought the car in 1995. 1500 miles on a quart is fine with me and well within warranty limits for a new vehicle per GM's criteria. And this is a 91 with the seals on both intake and exhaust ... The burn rate has not changed in 40k miles.