Oh we hear you on this one; a blown engine is mucho deniro but pulling the trigger too early and replacing pricy top-end components before they're worn out doesn't make much sense either.

So how can you tell when you're getting close to top-end refresher time without having X-ray vision? We have your answer and here's a hint- it has all to do with oil.

Ask the Editors: Checking My Piston Rings Without X-Ray Vision | ATVConnection.com