BG Diesel Care is a highly effective diesel fuel injection system cleaner. While diesel engines are more fuel efficient than similarly sized gasoline engines, they are much more prone to the buildup of combustion deposits. These deposits decrease fuel economy, deform injector spray patterns, increase exhaust emissions, and lead to hard starts. Installed using the BG Diesel VIA®, BG Diesel Care will quickly and safely clean carbon deposits from diesel fuel injection systems. A professional use injector cleaner, it is designed for use in all passenger car diesel engines.