Rislone specializes in award winning Car Engine Treatment and Fuel Additive Products for your vehicle to improve performance. Learn more about our products today.

Rislone High Mileage Ring Seal Smoke Repair Stops Blue Exhaust Smoke Reduces Oil Burning Seals Worn Pistons & Rings Add to Engine Oil Anytime Product Info

The unique Rislone formula is designed to penetrate into valve seats, bearing surfaces, and piston rings, where sludge and varnish are likely to form. These deposits are removed with the next oil change.

Introducing Rislone Cat Complete Fuel, Exhaust & Emission System Cleaner – the most advanced catalytic converter and emissions product available anywhere. This formula is engineered to help you …

Introducing Rislone DEF Crystal Clean® – the ultimate solution to keep your diesel engine running smoothly and efficiently. Years of research has led us to this formulation, and there’s nothing else …

No matter your situation, there is Rislone product with proven quality that can help you keep your car running at its best. Like other products, not all additives are created equal. Our first mission at …

Rislone Engine Oil Supplement with Zinc Treatment uses proven ZDDP technology along with our 90 plus years of oil additive knowledge to protect the moving parts of your engine to be used after break-in.

RISLONE ® DIESEL DEF TREATMENT is an anti-crystallization solution that is used every time filling the DEF / AdBlue ® tank. Improves diesel exhaust fluid and avoids costly SCR / DEF system repairs.

Founded in 1921 by the Shaler Company, Rislone was one of the original automotive chemical additives. Rislone was originally sold in glass bottles through service stations along with Shaler Hot …

Rislone Hy-per Fuel Complete Fuel System Cleaner is engineered to improve gas quality by increasing cleaning ability & lubrication, removing contaminants, reducing spark knock, and helping to prevent …