89 Octane okay?????

[DroidHoff]

Hey all, the title says it all. The other day on my way home from work I stopped to get gas and the 87 oct pumps were ots. I was low enough on gas that I had to put gas in to feel comfortable making it home so I used 89 oct. This is not staright 89 but 10 ethanol added 89. I saw in the sticky topics about gassing that it reads NEVER use anything other than 87 oct. The manual says a lot about the different additives that are acceptable but unless I missed it nothing about the octane rating. I am also a pilot so I am aware that a higher octane rating causes a hotter detonation but the difference between 87 and 89 oct can not be all that distinguishable, especially when blended with Ethanol. Please tell me I didn't just kill my new GZ!!

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[Water Warrior 2]

Your bike is dead send it to me. :lol: Don't worry about the 89 octane, you just spent a few more pennies than usual to get from point A to point B.

[dhgeyer]

Actually higher octane rating fuels burn slower, but have a higher flash point than lower ones. That's why engines with high compression ratios, or large cylinders, or certain other design features or combinations of features that make them prone to detonation/preignition/pinging/knocking require the higher octane fuels. Running higher octane fuel in an engine that doesn't need it is merely inefficient, as there may be incomplete combustion.

Bottom line: GZ'll run on any kind of gas.

[DroidHoff]

Thanks everyone I will sleep better tonight! And the previous poster your definitions are spot on! I had forgotten that I had even put it in there until it came up in conversation last night. Thanks again everyone!

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[DroidHoff]

Your bike is dead send it to me. Don't worry about the 89 octane, you just spent a few more pennies than usual to get from point A to point B.

Hahahahahahaaaa.

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[emory70]

ok, so why does the service manual say to use 91 or better?

[Easy Rider]

Originally Posted by emory70

ok, so why does the service manual say to use 91 or better?

If you are looking at the copy that is posted on here......it is an European version....where they use a different method to measure octane.

[alantf]

Originally Posted by emory70

ok, so why does the service manual say to use 91 or better?

At the pumps we get 95 & 98. :2tup:

[emory70]

different method to determine octane... i love that crap. hmm... actual octane rating? no, we prefer the theoretical octane number.

when i had my 99 f150, i tried the different grades. the truck got better mileage with the higher grades, but it wasn't enough to make up for the price.

[Easy Rider]

Originally Posted by emory70

different method to determine octane... i love that crap. hmm... actual octane rating? no, we prefer the theoretical octane number.

Would you care to explain that a little more clearly ??
I have no idea what you were trying to get across.