Quote:
Originally Posted by CaptainDoggles
No. You are wrong.
If your engine was designed to run on a particular octane, at a particular compression ratio, and you put fuel in that has a HIGHER octane than before, the minimum that you need to do is nothing. The octane number is just a measurement of it's anti-knock performance. Octane number does not mean the fuel burns hotter, or has more energy in it, or has a "greater heat flux". You don't need to modify the engine if you want to put higher octane fuel in it.
On the other hand, if you want to run at a higher compression ratio, then you are required to increase the octane rating of your fuel.
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Ok next time you take a Diesel, I suggest yu might try to put some 95 or 98 gasoline while I'll try myself to put diesel in a gasoline car. We will see who has the biggest bill.