Home › Forums › Water cooled 911 Forum › Best Gas/Octane for 07 911 C4S? › Reply To: Best Gas/Octane for 07 911 C4S?
Excellent. Really appreciate the feedback and will be happy to stick with Shell. Also have a G37, only use Shell 91 and it has performed very well. Your Volvo experiment sounds fun, might give it a go. In the G of course. Cheers
