Three problems related to engine burning oil have been reported for the 2011 Chevrolet Suburban. The most recently reported issues are listed below.
Excessive oil consumption.
Excessive oil consumption which gm refuses to fix under warranty.
Oil blow by when drops to 4 cylinders, took to dealership while under warranty to put in a bypass valve to "see" if will fix, didn't so next step was to have bottom half of engine rebuilt which I had to pay for out of pocket which then in turn ended up blowing up my whole engine either because the lifters got to hot & warp(which was the cause originally for the oil consumption as the heads) or the fact that the dealership sanded the heads which could have caused metal shavings to disperse through the engine. Either way the issue began while vehicle was under warranty as had been dealing with dealer for 2 years when issue began to the date engine blew. Had dealer put back together to take to another dealership for 2nd opinion and they also said it's been a know issue with the Suburban from 2007-2011 but is not a recall as of yet - I want my money back, I should not have had to pay for the "see if this works part", the bottom half of engine to be rebuilt, & then a new engine when gm & dealerships know this has been an issue for 4 years!!!! totally not acceptable. I'm not even including all the time & gas taken as had to take vehicle to dealer to test oil levels every 1,000 miles for 2 years - again when a known issue. Have paperwork from dealers on hand.