Originally Posted by Quicksilvers

Some good info here most of all the gasoline brands you will find in the United States will have up to 10% ethanol mixed into the gasoline it is hard to get around it but, there are some places like certain areas of Canada that have ethanol free gasoline brands you have to shop around. Also all the grocery store brand gasoline stations I have seen use generic additives in their gasoline’s that is why it is slightly cheaper and I have talked to the fuelers before for the grocery store name brand gasoline stations and they confirmed and have even showed me their paper work the gasoline additive they use is a generic additive. In my opinion I would not use any grocery store brand gasoline even in my lawn mower let alone my Z. With gasoline you get what you pay for. For us guys here that go to the track it would be a bad idea to put low quality/cheap fuel in your Z it could damage your engine it is very possible this is why I am selective what gasoline brands I use in any of my vehicles.