Protect-O-Lube 403 is a powerful multi-purpose additive that cleans, lubricates, and protects across a wide range of applications. Compatible with crankcase oil, hydraulic systems, compressors, turbines, and both diesel* and gasoline fuels, it neutralizes harmful acids, stabilizes oxidation, and reduces friction.

Use as a 1% fuel treatment, engine flush, penetrating lubricant, or rust preventative on tools, machinery, firearms, and marine equipment.

• Clean injectors, carburetors & internal components
• Neutralize engine acids & reduce sludge/carbon buildup
• Free sticking piston rings and valves
• Improve combustion and fuel efficiency
• Absorb moisture and prevent corrosion