MScan

Forgot to add I use conventional 5w30 with a 1/4 qt of Lucas per change. The AFM must be kicking in alot, because whenever I drive the car I look at the MPG and my wife gets high 17s and 19+ on weekend trips. Same trip in my '03 would be 17 MPG and 15 around home. So, at least I have money left over for OIL.

Hello GM Trucks members. I am a long time GM owner. I currently own 3 Chevy Trucks; 90 5.7L with 170K ,03 5.3 2003 Suburban w 127K and now an '09 Suburban 5.3. Do all my own Mechanical work including changing oil. Guess which one consumes 2 qts between changes? I bought it used with 19K on it 1 year ago. Now has 35K and shows 50% oil life left. Already down a full quart. Very disappointing. My '03 went to the dealer for the famous intermediate shaft grease run around 3x so I put in a Borgeson aftermarket. I still have the factory front brakes and rotors on it. Point is, the '03 has been great. The '09 has already stranded my wife with some "stabilitrak problems" and now this oil burn denial. I guess its time to start the oil consumption run around that GM knows so well. Anyway, wanted to take your poll...thanks for listening.