Hot Shot's Secret LX4 Lubricity Extreme from Lubrication Specialties is designed for use in either low lubricity ultra-low sulfur diesel (ULSD) fuel or gasoline. It prevents wear of key components inside the fuel system, particularly injectors, the fuel pump, and upper cylinders. For any vehicle utilizing ULSD low lubricity fuel, LX4 restores fuel’s lubricity, exceeding the Engine Manufacturers Association’s recommendation for fuel lubrication ensuring long-term protection of the owner’s investment, the company says. A 1 oz. to 10-gallon treatment ratio is recommended for all vehicles treating “dry” fuel regardless of size, including Class 8 trucks.
