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Racing Fuel Performance

Reading Spark Plugs Like a Pro: What Your Fuel Tune Is Telling You

Jan 6, 2026

Even in a world dominated by data loggers, wideband oxygen sensors, and sophisticated engine management systems that can track hundreds of parameters in real time, spark plug reading remains one of ...

Articles about Race Tuning

Reading Spark Plugs Like a Pro: What Your Fuel Tune Is Telling You

How Altitude, Humidity, and Temperature Affect Racing Fuel Performance

Best Fuels for High Compression and Boosted Engines

Tuning Tips for Getting the Most Out of Sunoco Race Fuels

4 Sunoco Race Fuels Every Modern Driver Should Know

Racing Fuels 101: Why Leaded Fuels Still Matter

Specific Gravity in Fuel: What It Is and Why Racers Should Care

Fuel Metering for Oxygenated Fuels: How to Tune for Maximum Power