The Tunap MP15700400AB engine interior cleaner is designed to thoroughly clean the oil circuit of internal combustion engines. This advanced formula effectively removes operational residues, sludge, and other contaminants that can accumulate over time, ensuring optimal engine performance and longevity. It prepares the engine for fresh oil, preventing new oil from being contaminated by old residues. Suitable for various engine types, this cleaner helps maintain efficient lubrication and reduce wear.