505 CRO Oil System Treatment - 12 oz Engine Oil Additive
Oil system cleaner and additive that helps reduce sludge and emissions while smoothing idle. Customers note improved engine performance and fuel economy gains
Highlights
- sludge removal and cleanliness
- emissions reduction
- smoothed idle and improved performance
Pros
- cleans sludge in engine
- reduces emissions
- noisy idle improvement
- restores performance in high-mileage engines
- improves fuel economy
Cons
- some customers find it expensive
Best For
Features
- Addresses sticking piston rings for smoother operation
- Targets sticking lifters and camshaft phasers for reliable motion
- Clears restricted oil control valve issues and related components
- Resolves sticking timing chain tensioner and improves oil flow
- Prevents clogging in screens to maintain lubrication efficiency
