So my brother won a 50 dollar gift certificate to some quickie lube place in town. He took his 2009 Cobalt SS turbo in for the oil change and picked Valvoline Synpower which was an extra 35 bucks on top of the 50 dollar gift certificate. The 'tech' told him to come back again in 5000 miles which to me sounds like a load of bovine feces. I don't know if the LNF Ecotecs are tough on oil or not but I'm pretty sure a 5000 mile OCI on Synpower is a waste. Am I right or wrong?