Oil, Chemicals & Additives Home / Oil, Chemicals & Additives / Wynns Exhaust Stop Smoke Add To Oil Petrol & Diesel Wynns Exhaust Stop Smoke Add To Oil Petrol & Diesel Wynns Exhaust Stop Smoke Add To Oil Petrol & Diesel £5.49 Information Specifications Car Exhaust Stop Smoke Reducer By Wynns Add To Engine Oil 350ml NEW Item Description Car Exhaust Stop Smoke Reducer By Wynns Add To Engine Oil 350ml NEWBrand New 350ml BottleReduces exhaust smoke from oil buringImproves compression and performanceHelps maintain cleanliness of the engine oilReduces engine noiseAdd to engine oil, one bottle treats 3 - 5 litres of oilCompatible with synthetic and mineral oilsFormulated to be safe with catalytic convertors, turbochargers and soot filters.Click here to see the full Wynn's Range Brand: Richbrook