HoBi

Sorry mate, what I ment was it has a more complete burn. I'd say it carries a premium because no one else has come out with a competeing 100RON fuel yet. check out the shell website.. they haven't just watered down the old optimax.. (or so they say..) http://www.shell.com/home/Framework?siteId...troduction.html I personally hate octane boosters... to me they are like electric turbos.

Minimum 100RON and 5% ethanol. The fuel runs a little leaner that regular premium, so you can lean out the fuel a little in your tune, but it also has great det protection, so you can up the boost and ignition. Just awesome.

came across this test on the motec site.. might be of interest. http://www.motec.com.au/fueltest/index.htm I've been using V-Power racing in the 4agze for a couple of months now and it loves it. used to ping off it's head, now it's great, smoother and more get up and go. could even dial in a couple of extra degrees of timing.