Engine oil additive
Rislone Ring Seal Smoke Repair increases the viscosity of engine oil to keep it from seeping into gaps that can form in engines as they age. It prevents oil blow-by into the combustion chamber, reducing exhaust smoke. The oil additive also contains high-shear polymers that cushion and clean rings and prevent spark-plug fouling. It can be added to conventional or synthetic engine oil at any time, and it is available in cases of six 16-ounce bottles.
Bar’s Products, Holly, Mich.
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