The best choice depends on the map, fuel system, local availability and goal. There is no universal answer.
Gasoline
May offer greater range. Quality and octane vary, so the selected fuel must follow the calibration.
Ethanol
Offers useful knock-control characteristics but requires more fuel volume and attention to starting and maintenance.
Use the correct map
Never change the ratio on your own. Report the available fuel and follow the instructions for your build.
Important
Compatibility, results, prices and included items vary by vehicle and configuration. Check the catalog and confirm all details with our team before ordering or installing any component.
