BG EPR Engine Performance Restoration is a powerhouse of an engine cleaner! It effectively softens, emulsifies and dissolves even the most stubborn fuel gums that clog rings. Engines are operating at higher temperatures than ever before. Combined with prolonged drain intervals and reduced engine cooling, automotive engine oil is under a lot of stress. Continuous thermal and oxidative breakdown contributes to oil thickening, heat retention and deposit formation. These heavy deposits can impede normal piston-ring function; thus reducing fuel economy, lowering power output, and increasing harmful exhaust emissions and oil consumption. BG EPR softens and dissolves hard-to-remove deposits from piston rings in as little as 10 minutes! Properly sealed combustion chambers improve compression and reduce oil dilution through blow-by, cleans micro passageways to maintain the critical hydraulic function of components such as valve train actuators and turbochargers and restores fuel economy and power and prevents excessive oil loss. Excellent for maintenance of Gasoline Direct Injection engines. BG 44K Fuel System Cleaner is the number one fuel injector cleaner! Gasoline quality is inconsistent. And when gas at the pump is poor quality, it can cause deposit buildup, inefficient ignition and combustion and poor power output. To make matters worse, small, high output engines are extremely sensitive to deposits that build up on fuel injectors, intake ports, on intake valves and in combustion chambers. Even small amounts of deposits cause increased exhaust emissions, reduced fuel economy, drivability problems and engine knock. This high quality detergents and additives that you pour right into the gas tank to restore performance and gas mileage. It vanquishes deposits in combustion chambers, intake manifolds, ports and on valves and restores flow in fuel injectors. Basically, it cleans the entire fuel system!