It looks like it might be similar to Shell Optimax in Australia, but with a lower Octane rating of just 93 RON (Research Octane Number).
That's weird.. why does the US have such shiet petrol?? After looking at
this page on the US Shell site it states that "The most common levels of octane are 87 (regular), 89 (mid-grade) and 93 (premium)" and compared to
Australian Shell fuels,
Regular Unleaded has 91 RON,
Premium has 95 RON, and
Hioctane has 98 RON.. and the RON level for Leaded petrol, which has now been phased out, is 96.
And I thought aussie fuels weren't good enough compared to Japan's 100+RON fuels, which is the reason why Japanese cars usual get de-tuned when being sold in other countries.
Optimax has been selling here for about 5 years now (2000) and was the only Hioctane fuel on the market for a year or so untill Mobile (2001) released
Synergy 8000, and BP (2002) slowly released
Ultimate across the country, and then a few months later Caltex (2002) released Vortex, which at first was a 96 RON fuel next to their 95 RON Premium (stupid). They're slogan was something like "You don't need to have 98 RON for a cleaner, economic fuel" and just a few months ago (2005) they release
Vortex 98
So, yeah, it's weird that US has such crappy fuels but what about Europe? Is it better than Australia's or on par with Japan's?? Can someone confirm?
In my opinion, Hioctane is worth the extra cents you pay for it. Apart from the obvious power gains people talk about (it's hardly noticable) the view and smell from the exhaust is cleaner (ie. less carbon build up, the fumes aren't as strong and doesn't smell as bad), and I also get more miles out of it with an average of about 10% more km/litre extra.
So, it sort of works out to be costing the same per km but the benifits are a slight power gain and cleaner burning engine..
BTW, my woman is a Product Scheduler for BP so I've always liked researching fuels... in my opinion, Ultimate is the cleanest, Optimax is the strongest, Synergy isn't as clean or strong as BP or Shell, and I hate Caltex..