This is the worst car I have ever owned. I had to replace the entire valve train at 70,000 miles at $4500 and now at 87,000 miles a connecting rod went and now needs a new engine for $6100 and yes I changed and checked the oil. That's how I knew it went through a quart about ever 2000 miles. If you are looking to buy one of these don't. I will never purchase another GM car, no wonder they are in so much trouble.