Revnation 100R is a extreme performance methanol racing fuel designed for high revving racing engines with high compression ratios. MACH 100R is specially formulated and 99.9% pure methyl-alcohol. It has also proven to be very popular. Revnation Racing Methanol is very resistant to vapor lock, ensuring consistent fuel metering between passes. Revnation Racing Methanol is for off-road and racing use only. It contains additives to enhance stability and minimize oxidation. As with any gasoline, Racing Methanol should be stored in opaque, tightly sealed containers where temperatures are stable. Handled under such conditions, the shelf life of Revnation Racing Methanol is 2 years or more.