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Post by domindart on Apr 8, 2013 22:15:18 GMT -5
Does premium fuel give more MPG's?
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Post by gatekeeper on Apr 8, 2013 22:20:48 GMT -5
Not in my experience. If fact, in my experience performance went down when I used it in my scoots. I am of the belief that you should only use the higher octane fuel if your engine has problems with pre-ignition.
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Post by domindart on Apr 8, 2013 22:22:57 GMT -5
or when your timing is advanced..
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Post by DaveC on Apr 9, 2013 10:16:34 GMT -5
But don't a lot of these scoot engines have a compression ratio of 10:1?
8.5:1 is fine for the regular, but the higher compressin ones need Ethel.
So, I guess the answer is: It depends.
Not to be confused with the Depends that some of us Sr Citizens wear.
(Sorry Alley) (LOL)
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Post by prodigit on Apr 9, 2013 10:58:49 GMT -5
Depends, if you notice a performance increase with premium fuel (eg: more top speed, better acceleration), then yes, should you ride just like regular fuel, you'd get more MPG.
If in this case, you'd ride more aggressively, then no, premium fuel does not get better MPG, because you're spending more fuel in accelerating faster; and the difference would be kind of leveled out.
Any brand's premium fuel does very little compared to regular fuel.
BP is about the only company that for some reason has higher performing fuel in their premium package.
Try it out. Many swear by it, pay a couple of cents more per gallon, but get a much better mileage out of their cars, than any other brand, because in engine sizes over 150cc, generally acceleration is determined by the traffic flow (not always WOT, like on a 50cc); meaning on anything bigger than a 50cc, you generally accelerate at a fraction of the engine's total power.
In those cases you'd save MPG.
BP Premium brings my average MPG from 32MPG to 36MPG in my CHevy Cruze. The internal display can read it on the fly.
And makes my TaoTao ATM50's top speed from 40 something to ~50MPH, and acceleration better by at least 10%
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Post by jeffery5568 on Apr 9, 2013 11:09:41 GMT -5
It makes no difference in my scooter. Pure gas will give you a little better gas milage.
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Post by triker on Apr 9, 2013 11:15:22 GMT -5
But don't a lot of these scoot engines have a compression ratio of 10:1? 8.5:1 is fine for the regular, but the higher compressin ones need Ethel. So, I guess the answer is: It depends. Not to be confused with the Depends that some of us Sr Citizens wear. (Sorry Alley) (LOL) Yes, most of these engines have a 10:1 compression ratio or higher. I get better performance and more mpg using a lower octane fuel. If your engine pre-detinates (pings) then you should use a higher octane. No, the higher compression engines do not need ethanol, they need more octane. I try to use non- ethanol fuel, as ethanol draws moisture, deteriorates rubber and gets less mpg. Roy |
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Post by CopperDeer on Apr 9, 2013 18:03:39 GMT -5
In my experience with these high compression scooter engines,  octane is a must for optimal performance and MPG. It's not enough MPG boost to justify the additional cost, though. You could tune these engines for 87 octane and great MPG if that's your goal but I was all about speed. |
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Post by domindart on Apr 9, 2013 19:38:46 GMT -5
I'll fill er up w next time and see. |
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Post by DaveC on Apr 9, 2013 20:54:56 GMT -5
But don't a lot of these scoot engines have a compression ratio of 10:1? 8.5:1 is fine for the regular, but the higher compressin ones need Ethel. So, I guess the answer is: It depends. Not to be confused with the Depends that some of us Sr Citizens wear. (Sorry Alley) (LOL) Yes, most of these engines have a 10:1 compression ratio or higher. I get better performance and more mpg using a lower octane fuel. If your engine pre-detinates (pings) then you should use a higher octane. No, the higher compression engines do not need ethanol, they need more octane. I try to use non- ethanol fuel, as ethanol draws moisture, deteriorates rubber and gets less mpg. Roy Oopss My bad Ethel is the old term for premium gas (before they had unleaded) Alley is the only one who would remember that. |
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Post by alleyoop on Apr 9, 2013 21:08:59 GMT -5
The LITTLE 4 BANGERS DON'T NEED NO STINKING PREMIUM ETHEL  Now here is what needs PREMIUM CARROT JUICE: Alleyoop |
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octane is a must for optimal performance and MPG. It's not enough MPG boost to justify the additional cost, though. You could tune these engines for 87 octane and great MPG if that's your goal but I was all about speed.
..BAD TO THE BONE..