Excessive Engine Oil Consumption on Isuzu Trooper

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.

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Average mileage: 147,129 (112,023–180,000)
Engines affected: 2.8L V6, 3.5L V6
5 model years affected: 1990, 1999, 2000, 2001, more2002
17 people reported this problem
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problem details
2002 Isuzu Trooper - 3.5L V6 121,000 mi,
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.
2000 Isuzu Trooper - 3.5L V6 134,000 mi,
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.
2002 Isuzu Trooper - 3.5L V6 112,023 mi,
using more than a quart each 1k miles. Taking to dealer for oil consumption test. Isuzu service bulletin IB00-01-5002
2001 Isuzu Trooper - 3.5L V6 160,000 mi,
Oil ran dry 2000 miles past most recent oil change. No smoke or leaks, ran perfectly otherwise. Engine main bearing now rolled.
1999 Isuzu Trooper - 3.5L V6 165,000 mi,
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.
2000 Isuzu Trooper - 2.8L V6 177,000 mi,
Oil consumption
2001 Isuzu Trooper - 2.8L V6 136,000 mi,
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".
2002 Isuzu Trooper - 3.5L V6 132,000 mi,
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....