Check the listing for details. Tufoil Engine Treatment 8 oz. - 2 Pack. Condition: New. Listed at 50.19 USD. Tufoil Engine Treatment 8 oz. - 2 Pack Features You will receive (2) packages of Tufoil Engine Treatment 8 oz. Faster cranking speed under all weather conditions Better gas mileage Increased horsepower, acceleration and extended engine life Safe for all gas and diesel engines Description Tufoil Engine Treatment will keep your car or boat running so efficiently you can literally double the life of your engine. Efficiently running engines use less gas, need fewer repairs, run smoother and quieter and last a very long time. The National Bureau of Standards tested Tufoil Engine Treatment and reported their findings: Tufoil has a surface friction so low. Tufoil Engine Lubricant is Guinness Book of World Records certified as \\\"The World's Most Efficient Lubricant.\\\" WARNING: This product can expose you to chemicals, including lead, which is known to the state of California to cause cancer, birth defects and reproductive harm. For more information please visit: Payment We accept all major credit cards and PayPal. Shipping Free Shipping anywhere in the Continental United States. Please be certain your shipping address is correct as this cannot be changed once the order has been placed. Returns Should you need to return your purchase, we allow returns that are processed within 30 days of receipt of the order. Please contact us for a return authorization and the return shipping address.