4 x STP Diesel Stop Smoke 200ml Additive Reduce Black Smoke & Exhaust Emissions

4 x STP DIESEL STOP SMOKE 200ml. STP Heavy Duty Engine Degreaser Spray Pro Car Removes Dirt Cleaner 500ml. 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.

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