Description: Diesel Stop Smoke Features: - STP Diesel Stop Smoke has been specially formulated to significantly reduce exhaust smoke by cleaning the fuel system and injectors, and helping to keep the system clean. - This concentrated combination of detergent and dispersant will maintain efficiency and lower operating costs for diesel engines. DIRECTIONS - Simply add to your fuel tank every 1250 miles. IS IT SAFE TO USE IN MY VEHICLE - STP Diesel Stop Smoke is suitable for all diesel engines including DI, IDI, common rail, and catalytic converters.
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