Quote Originally Posted by Big Rob View Post
I worked for years at a local service station and we often had fuel samples taken and were given a report of the breakdown of the fuel.

The standard unleaded always showed a lot of additives, impurities, aromatics (yep, aromatics!), colouring, etc.... sometimes as many as to fill the page and go to a 2nd page. Also, the octane rating varied considerably.

The 98 always showed 3 things; one colour, one aromatic and the rest was petrol. And the octane rating was always spot-on.

I'm not someone that listens to media bullsh*t, but I DO believe what I see with my own eyes.
A good mate of mine owned 3 servos until very recently and he said standard unleaded can have up to 9% Ethanol mixed in. He said the 98 is usually clean depending on the company. I use Caltex 98 in all my small engines too. When I was working in a bike shop we used to have troubles witha lot of bikes fouling plugs. The common factor was Shell Optimax. There was some extra additive in there that worked for cars but was hell on bikes. People weren't too happy when their 12 month old 1000cc sports bike wouldn't start for no apparent reason.