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Message: <blockquote data-quote="Schwepps" data-source="post: 396205" data-attributes="member: 3592">Yeah, if you use a fuel and you don't hear knocking, it means your car's anti-knock sensor also doesn't hear it, and the ECU won't retard the engine's timing presets to compensate. Power will therefore be the same between ULG95 and ULG97 because they come from the same base ULG stock, only with different levels of anti-knock additive. You'd just be paying 25 sen/lit more for the extra anti-knock which you don't need. The misconception that RON97 is a higher number and therefore must be more powerful than RON95 is completely wrong, just like the misconception that 0W-30 oil is a lower number and therefore must be thinner than 5W-30 oil. RON 92, 95 and 97 are from the same base ULG stock. 0W-30 and 5W-30 are from the same base SAE30 stock. Just different levels of anti-knock and pour point depressant respectively.Traveller's test results match mine and therefore it would seem that VPower is indeed a different fuel. I've heard from a forumer in the O&G field that the hydrocarbon makeup is different from ULG, and that's probably the reason there is a different burn characteristic and is therefore more EFFICIENT. Whether it's more POWERFUL or not is still a question mark.I'll continue my test, and I hope that Traveller and others will too. The results are interesting. :top:</blockquote>