XPS® KART TEC SYNMAX FULL SYNTHETIC 2T KART RACING OIL XPS® KART TEC SYNMAX 2 STROKE FULL SYNTHETIC KART RACING OIL is the superior pre mix racing 2-stroke oil specially developed for ROTAX 125 MAX engine family. Official oil of the Rotax Max Challenge. Formulated to provide: Outstanding lubricity under extreme conditions (high revolutions, high temperature) Optimum deposit control for a clean engine and exhaust valve Maximum power output without compromising component protection Easy to blend and long term stability in fuel/oil mixture For ROTAX 125 MAX engines use mixing ratio of: 1:30 (3% oil) for break in 1:50 (2% oil) for optimum performance For other engines follow mixing instruction of engine manufacturer.