Wynn's EGR Engine Cleaner provides a thorough clean of the air intake system, airflow sensor, inlet valves, turbo, and EGR system. Its strong power jet spray dissolves gum, lacquer, tar, carbon, and deposits, restoring perfect airflow towards the combustion chamber. This cleaner provides a regular and stable idle, eliminates and avoids starting problems, and helps restore engine performance and reduce black exhaust emissions. It also improves accelerating properties and fuel economy. The product is harmless to all after-treatment systems, including catalytic converters and Diesel particulate Filters (DPF). Cleaning takes only 5 to 10 minutes with minimal necessity for component dismantling. It is an aerosol product developed for cleaning the air intake system of all diesel engines.