The benchmark for sustainable Japanese motorsport.
Jointly developed with Japan’s leading OEMs, R11 combines JIS Premium (E) compliance with race-grade sustainability. With RON 98–99, 19% ethanol and 100% sustainable components, it provides reliable power and efficient combustion without system modifications.
Proven in the Super Taikyu Series, R11 delivers stable torque and extended engine life during endurance competition.
RACE TO WIN, ACCELERATE CHANGE
CO2 reduction
Endurance racing
JIS Premium (E)
TECHNICAL DATA
RON
98-99
(Research Octane Number) Resistance to knocking under low-load, lower temperature conditions.
ETHANOL
19.1%
Ethanol fraction; oxygenate, renewable, improves octane.
A/F RATIO KG
13.41–13.43
(STOICH) Air-to-fuel ratio for complete combustion; key for engine calibration.
OXYGENATES
6.8–7.0
Compounds that contain oxygen and are added to gasoline to improve combustion efficiency and reduce harmful emissions.
758-762
DENSITY AT 15C
Mass per unit volume; affects energy content per litre and fuel metering.
FINAL BOILING POINT
182-186
Maximum temperature at which last fraction evaporates; combustion quality.