Has anyone had a problem with their 5.3L using moter oil? Mine is using about 2qt. per 3000 mi. The dealer said factory is aware of problem and has a fix. The fix consists of removing oil pan , installing oil deflector , removing & cleaning spark plugs ,filling cylinders with cleaner , and changing oil and filter. This was done to mine at no charge however it has allready used a quart at only 1400 mi. after last oil change. I have owned several 5.3L vehicles non ever used any oil. This truck has only 38000mi. on it. It is the varible disp.(V8 to V4). I havenot read about this problem on this site. I have heard about it on a Surburban site.