Lack of oil changes can cause the piston rings to become clogged with debris resulting in excess oil consumption. Severe engine damage may result if the oil level gets to low. Engine dis-assembly may be required to clean or replace the piston rings. Our technicians recommend proper maintenance to try and avoid this expensive repair.
Average mileage: 142,785 (95,000–180,000)
Engines affected: 2.8L V6, 3.5L V6
18 people reported this problem
Viewing 1 - 9 of 9 comments
VEHICLE USES ABOUT 1 QT OF OIL EVERY 700-1000 MILES. DOES NOT HAVE ANY LEAKS, DOES NOT SMOKE AND HAS HAD ROUTINE OIL CHANGES EVERY 5000 MILES.
Has used 1 quart of oil every 3000 miles since new. Now with 134000 miles it has been using a quart of oil every 1000 miles.
using more than a quart each 1k miles. Taking to dealer for oil consumption test. Isuzu service bulletin IB00-01-5002
Oil ran dry 2000 miles past most recent oil change. No smoke or leaks, ran perfectly otherwise. Engine main bearing now rolled.
I add at least 20-30 qts of 10-30 syn oil a year just to keep up with low levels. I check every gas fill up.
Using 5w 20 oil. Will go thru 1 quart on a 240 mile trip. Now we in town, uses a quarter of oil every 400 miles.
The problem has not been fixed yet. I notice intermittently the change in consumption of oil in the car. Every mechanic has simply classified it as an "oil leak".
Trooper uses about 1 qt. of oil between 200-250 miles. It uses more if I change to synthetic. No leaks, smoke or power loss....