I have a 99 Chevy Camaro with the GM 3.8 V6. Up to 70,000 miles the car hardly used any oil at all between changes. I have typically changed the oil using the oil change light, which for my driving conditions comes on at about 4500 miles. I have owned the car since new, used only Pennzoil dino 10W-30, and done all the maintenance on schedule.
During my last oil change interval, the car started using oil. It used none at 2000 miles, 1/3 quart at 3000, and 1 full quart by 4,000. I swtitched to Castrol GTX from Pennzoil and changed my PCV valve to see if that would help. Instead it got worse, now it used 1/4 quart at 1000 miles, 2/3 by 2000, and a full quart by 3000. This time I got nervous and changed the oil at 3000 instead of adding.
Usually these engines are bulletproof and don't have this problem. I am looking for advice on what to use to reduce this consumption, or to find out if anything is wrong that needs attention. Thanks.
During my last oil change interval, the car started using oil. It used none at 2000 miles, 1/3 quart at 3000, and 1 full quart by 4,000. I swtitched to Castrol GTX from Pennzoil and changed my PCV valve to see if that would help. Instead it got worse, now it used 1/4 quart at 1000 miles, 2/3 by 2000, and a full quart by 3000. This time I got nervous and changed the oil at 3000 instead of adding.
Usually these engines are bulletproof and don't have this problem. I am looking for advice on what to use to reduce this consumption, or to find out if anything is wrong that needs attention. Thanks.