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Experience the ultimate in motor oil technology with FHS Full-Synthetic Smokeless Motor Oil. This high-quality oil is designed to keep your engine running smoothly and efficiently, without the harmful effects of smoking. With new SAE grades available from 5W-20 up to 20W-60, it comes in convenient 1 quart or 1 gallon bottles. Since 1969, the FHS brand has been known for its reliable and durable racing motor oil, and this motor oil is no exception. It is made in the United States and is compatible with a wide range of vehicles and engines. Whether you're looking to upgrade your motor oil or simply want to experience the benefits of smokeless oil, FHS Full-Synthetic Smokeless Motor Oil is the perfect choice. Product Features:Smokeless formula reduces emissions.Helps improve engine performance.Suitable for a wide range of vehicles.High-quality oil for optimal engine protection.Helps extend the life of your engine.Ideal for use in gasoline, turbo, and diesel engines.Ensures optimal lubrication even in extreme conditions.Comes in a convenient packaging for easy storage and application.For best results:Drain old oil from system.Flush system (if necessary).Install a new quality oil filter.Fill with FHS Smokeless Motor Oil.Let motor run for at least 10 minutes.Important: FHS Smokeless Motor Oil should not be used in conjunction with any additive or other motor oil. Proper diagnosis of engine smoke is critical as this oil will have no effect on coolant, fuel, or carburetor related emission smoking problems.