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<blockquote data-quote="Schwepps" data-source="post: 396602" data-attributes="member: 3592">Then it&#039;s not that it&#039;s not advisable, you just prefer RON97 fuel and have lots of dough. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink&nbsp; &nbsp; ;)" loading="lazy" data-shortname=";)" />To most people, the term &#039;high octane&#039; means &#039;more flammable&#039; and &#039;higher energy&#039;. In fact the exact reverse is true: higher octane means less propensity to self-ignite! The energy level is the same, in the same base fuel. In other words, RON 95 is more flammable than RON97 but the calorific value is the same.&nbsp;&nbsp; See <a href="http://en.wikipedia.org/wiki/Octane_rating" target="_blank">http://en.wikipedia.org/wiki/Octane_rating</a> , or google &#039;octane&#039;.ULG95 and ULG97 have the same calorific values, it&#039;s just that ULG95 burns marginally more easily than ULG97. ULG95 is subsidised by 30 sen per liter, and ULG97 is not. It&#039;s every car owner&#039;s decision to make of course. For me, it&#039;s ULG95 for city, VPower for outstation.</blockquote>

[QUOTE="Schwepps, post: 396602, member: 3592"] Then it's not that it's not advisable, you just prefer RON97 fuel and have lots of dough. ;) To most people, the term 'high octane' means 'more flammable' and 'higher energy'. In fact the exact reverse is true: higher octane means [I]less[/I] propensity to self-ignite! The energy level is the same, in the same base fuel. In other words, RON 95 is [I]more flammable[/I] than RON97 but the calorific value is the same. See [url]http://en.wikipedia.org/wiki/Octane_rating[/url] , or google 'octane'. ULG95 and ULG97 have the same calorific values, it's just that ULG95 burns marginally more easily than ULG97. ULG95 is subsidised by 30 sen per liter, and ULG97 is not. It's every car owner's decision to make of course. For me, it's ULG95 for city, VPower for outstation. [/QUOTE]

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