Gasoline thread........

[beetle]

To the last, I grapple with thee; from hell's heart, I stab at thee; for hate's sake, I spit my last breath at thee. Die thread, die.

[rodekyll]

 

[Two Checks]

Actually octane does not make the fuel harder to ignite, it raises the temperature at witch it AUTOignites.
Higher the octane the more the air/fuel mixture can be compressed before it explodes by itself, causing pre-ignition, wich caused detonaton, or pinging or pinking to our friends across the pond.

[Nic in Western NYS]

Non ethanol in anything other than 87 is unavailable to Tom , thus the question . Better to deal with some side effects of ethanol than the effects of pre ignition .

 Dusty

That's the heart of the matter.  In looking around the internets for the effect of using octane boosters to allow for use 87 (regular, not premium) non-ethanol gas in engines that require premium, the problem is the meager octane improvement that results from use of the additives.  So, while theoretically you can use regular non-ethanol gas and increase the octane through an additive, the effect is inadequate when using the products as recommended. No more gas posts for me for at least 5 years.

[Tom]

Thanks for the advice.   I run the highest octane rating available for the older Guzzis.

[Farmer Dan]

every station in town sells nothing but E-10 so I run the 87 octane in my Eldo.  If I have it figured right 87 is equal to 91 in the old RON method.  Anyway only problems I've had so far is keeping bugs off my windshield.  Knock on wood.