Spewing white exhaust smoke? Guess what? Your engine's burning oil, and there are three prime suspects for such-a blown head gasket, worn out valve stem seals, or your piston rings are fried-you'll need replacements for all three, including a piston ring set. In any case, you're looking at a full engine overhaul, and it's going to cost you quite a lot. And no, there's no escaping that route. Not unless you want to keep running your engine like that. If you do, you're looking at greater wear and tear. Soon, the damage will be unimaginable. So yes, you have to act now. You're going to need a few parts, and a piston ring set is one of them. A piston ring's job is to maintain compression ratio in your combustion chambers. Simply put, it ensures an airtight fit of the pistons in each cylinder. Each piston has two to three piston rings, plus an oil ring to keep oil from leaking into the combustion chamber. A piston ring set should include a complete number of piston rings and oil rings for all your pistons. The hard part is grinding them to fit into your cylinders. That's if you choose oversized rings. Standard-sized rings will need minimal to no grinding at all for them to fit in the cylinders. Just make sure you've got the right piston ring set for your engine. They're available right here at Car Stuff. Search from our catalog now!