Seller notes

Hot Shot's Secret LX4 Lubricity Extreme fuel system additive is the answer to low-lubricity fuels. Developed for use with either ULSD fuel or gasoline, this additive prevents unnecessary wear and scaring of key components inside your fuel system--particularly injectors, fuel pump, and upper cylinders. For vehicles using Ultra-Low Sulfur Diesel fuel, the LX4 formula restores the fuel's lubricity, exceeding the Engine Manufacturers Association's recommendation for fuel lubrication, ensuring long-t...

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