http://www.dailyfueleconomytip.com/common-sense/fuel-economy-tip-use-the-proper-grade/ Increase Fuel Economy and Save Money at the Pump Sun, 04 Sep 2011 14:30:58 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://www.dailyfueleconomytip.com/common-sense/fuel-economy-tip-use-the-proper-grade/comment-page-1/#comment-62356 John S Thu, 23 Jul 2009 12:56:01 +0000 http://www.dailyfueleconomytip.com/?p=37#comment-62356 The generic answer is no to higher octane. But many cars can benefit a little from higher octane. If you car has a knock sensor you may never here the ping or knock that indicates higher octane. In fact even if minor knocking occurs the timing can be affected enough to reduce perceived power. I think the real statement should be that higher octane will not be worth it if you intend it to get you better mileage. But you may feel it adds enough performance and other minor improvements that is worth the extra expense. As with any product some have improvements that are hard to measure. Almost any engine can run on regular unleaded, but to some their can be a difference between run and RUN. The generic answer is no to higher octane. But many cars can benefit a little from higher octane. If you car has a knock sensor you may never here the ping or knock that indicates higher octane. In fact even if minor knocking occurs the timing can be affected enough to reduce perceived power. I think the real statement should be that higher octane will not be worth it if you intend it to get you better mileage. But you may feel it adds enough performance and other minor improvements that is worth the extra expense.
As with any product some have improvements that are hard to measure. Almost any engine can run on regular unleaded, but to some their can be a difference between run and RUN.

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