Speed Sauce â„¢ 50/50 Water-Methanol Injection Fluid mix helps control detonation and can increase horsepower and torque with proper tuning. Our meth injection fluid is premixed and ready to use straight from the bottle. It won't damage your vehicle's paint if it spills or drips on the body of your car or truck. Speed Sauce can also be used as a water-methanol injection diesel fluid mix. In fact, when used in diesel applications, it provides increased power AND lowers exhaust gas temperatures, resulting in for safer towing. Speed Sauce is perfect for turbocharged, supercharged, and high compression, naturally aspirated engines. It can deliver a 5-15% power gain with proper tuning, and it helps clean carbon deposits on the valves, pistons, and combustion chambers. Check out VP's full line of premium fuel additives and octane boosters today!