If it's not really about tuning or wiring. Then it belongs in here.
Just curious to know what are your thoughts on these two in NZ, obviously the ethanol content is higher but I have been hearing that the overall quality of Force 10 is questionable as they have introduced additives to help with the shelf life as it comes from overseas. What have been your experiences with tuning using these fuels. Cheers!
We didn't have any Gull stations near my workshop in Wellington so I don't specifically have any experience with it. I can't comment on the consistency of Force 10 however I've never had trouble with Force Pro. I would expect the tuning on Force 10 and BP 98 to be very similar in terms of octane/knock resistance. Theoretically Force 10 should require a slight increase in fuel supply but it's unlikely this would be enough to result in any issues.