Reply To: Best Gas/Octane for 07 911 C4S?

Club News Forums Water cooled 911 Forum Best Gas/Octane for 07 911 C4S? Reply To: Best Gas/Octane for 07 911 C4S?

#26024
DaveOsborne
Participant

You’ve received very good advice. My car is tuned (turbocharged) for 94 octane. Rather than use Ultra 94 with ethanol I use Shell 91 (real gas) with NOS Octane Booster to bring it up the extra 3 octane numbers.

The results are very strong, no knock and no moisture contamination in the blow by. It’s a win win for any high compression motor.

Have fun!