Does anyone else have experience with the 3.2L using lots of oil. It's not dripping, and doesn't smoke, but goes through about a quart per tank of gas.

When I asked about my 2000 3.2l, the dealership told me that a quart of oil every 1000 miles was normal.

http://www.geocities.com/endre_rl/isuzufaq.htm#faq4

try sea foam in the oil to clean the rings.

May also be the type of oil you're using. My '99 Rodeo would use a quart of oil every 3k miles using Castrol 10w-30. Last oil change I switched over to Shell Rotella T 15w-40 and now with over 3k miles it's still on the full mark.

MikeyBat

I know these 3.2's use oil, and I also know that Isuzu's claim that it is normal is complete BS. Luckily and suprisingly enough mine stays steady in between oil changes (although it probably won't now that I said something!). If you are using a quart between every fill up, then you should seriously think about using the sea foam mentioned earlier or taking some other course of action. A quart every tank is nowhere near "normal" (even by isuzu's standards). Are you sure you don't have a leak? I would use the sea foam and if the oil consumption didn't improve, I would sell it. The sea foam is said to work wonders, however.

Mine used a quart every 1000 miles (sometimes less than 1000) until the engine seized. Isuzu dealer (ADZAM in Bedford NY SUCKS) claimed using a qt/1K is "normal" and Isuzu agreed my truck has yet to be fixed.
If you are still under warranty GET IT IN WRITING and cover your ass.