Just for your information - Premium gasoline will help you keep that Tecumseh or Briggs&Stratton running fine also!
Try it, you might be surprised at what you get. 2 Push lawn mowers - one filled with 87 octane the other filled with 94 octane. let them set for a year or more, I bet you can't start that 87 octane mower, but I bet that 94 octane mower will start with no more than 2-3 pulls, actually I've seen this done and I have experinced it myself. So laugh all you want.

And actually, that 1956 Bel-Aire with the 7:1 comp. ratio would also benefit from 94 octane.

But, like I said before, try it, what do you have to loose. Other than eating your very own words!

By the way, Carburated gas engines will gain more benefits from Premium gasoline than a fuel injected computer run car.

You Do Not Have To Have a High performance engine to reap the good results of premium higher octane or cetane.

Case in point - 83 231 cid v6 Buick 2 bbl. Regal - Run 87 octane and get a consistant 17mpg - run 94 octane and get a very consistant 23-25mpg.
So, what are the gains? Besides the gas mileage? Starts better and runs cleaner.
Sorry, but that is Proven Fact! I owned the car for 5 years and put on close to 85,000 miles!
Most of which had premium gas in it. All of my small engines run Nothing but premium. From a push lawnmower to a rider to my trucks. And my Mercedes.

But, then you find it easier to become a keyboard rambo and mouth off about something you have no actual experience with. I have over 30 years of experience!

"you think that cetane = power? ok.. just keep on dreamin. "

how many miles have you got and how many gallons of fuel do you have under your belt to justify this quote? Or are you just guessing? Sir, I have well over 500,000 miles of Not guessing, but of experience!

The Calculator does not tell lies! The Odometer, the gas station pump readings and the calculator doesn't know how to lie! Doesn't know how to dream, doesn't know how to fabricate. You enter the figures, it calculates the answer for you, you write down those figures and in time, using both premium and regular fuels you soon find the answer.
You now have a very good journal with which to find out the actual differences. You have experienced it, it is there on paper.

When you leave the stop light and you notice a an improvement in power than you normally had, when your speedometer registers higher figures - is the speedometer telling you a lie? Is the speedometer fabricating a dream or story? Does the same speedometer that you have grown accustomed to seeing everyday all of a sudden get a very optimistic attitude?
Hummm!
This is what is known as Facts! Experienced fact that you know, because you see it. You didn't just have an out of body experience and realize this was all a big dream! It is REAL! FACTUAL! REAL REALITY!