Stinger MC4X

This UNLEADED fuel has a broad range of use, however, is specifically formulated for 4-stroke applications - offering a single use quality race fuel for all motocross, motorcycle road course, legend and micro-sprints where oxygenated fuels are permitted.  MC4X has a Motor Octane Number (MON) of 99 and will provide consistent performance despite changing weather conditions.  This Stinger Race Fuel product finds a balance between performance and cost, a total benefit to both Pro and Amateur participants.  In addition, it will also provide generous horsepower gains when used within car racing applications such as road coarse and tuner vehicles where emissions control technology is still present.

Fuel Specifications

Standard Conditions Data
Octane (R+M)/2
Research Octane
Motor Octane Number (MON)
Specific Gravity
Reid Vapor Pressure (PSI)
A/F Ratio Stoich
10% Evaporation (°F)
50% Evaporation (°F)
90% Evaporation (°F)
Oxygen Content (%weight)

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About Insinger Performance

Insinger Performance is a 35 year old Petroleum company who distributes fuels for Home, Farm, Commercial, Convenience Stores, and supplier of special blends for the Natural Gas and Oil Industry. Insinger also is a large supplier of Race Fuels covering many states in the US and also Canada

Contact Us

Insinger Performance
11278 ROUTE 220
Dushore, PA 18614

Phone: 570.928.7300
Fax: 570.928.0981
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