Quote:
Originally Posted by polcat
My job in the military is Fuels. In my job we have to sample and Lab test different grades of fuel from Jet fuel to diesel to mogas (or unleaded fuel) to make sure they pass certain standards. The truth is that the different grades of unleaded gasoline have different "Flash points". This is the difference that your engine sees. When your engine flashes at different temperatures it directly effects the timing of the engine. Although this is so minute by scale, over time your engines ECU learns through sensors, the time at which you cylinder flashes, in turn adjusting the other components accordingly. Higher octane gas burns hotter and faster, which creates more power and a cleaner burn.
Bottom line is there are differences in Octane and the higher the octane (within limits to your ECU tune) the easier and better your engine will run
The good things about todays cars/trucks are the ECU's are better tuned for todays crappy gas. You will see suddle differences between grades, but they are there. Hope that helps a little.
Just be glad you dont have to use Bio-diesel. That crap sucks!!!
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Great input. My second trip didn't evaluate well. Increase .1 mpg using premium. I want to belive my response is better than before. i like the way it's put above hotter faster and cleaner. So we will change to premium for now to see how things go for awhile.
Hell what's another $4.00. I don't smoke much less drink or yeah I know I just won't get another mod for awhile....
