Honda Car Forum |
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27 Aug 2003, 04:08 pm
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Re: Octane for Civic
E. Meyer wrote:
> On 8/25/03 7:15 PM, in article EEx2b.25788$Zw4.5398@lakeread03, "Randy > Given" <GivenRandy@aol.com> wrote: > > >>What octane should I use for my 2003 Honda Civic LX sedan? The manual >>recommends 87. Will higher octanes make any difference? Will they do any >>damage? >> >> > > There is no additional power in higher octanes. If anything there is less. > The higher octane number indicates higher resistance to detonation. If you > are using a brand name fuel, the additives are present in all the grades. > This is one area where it generally does not pay to upgrade over the > manufacturer's recommendations. > > Your new car has a knock sensor that the engine computer uses to adjust > timing on the fly so it won't ping. If it does when using 87, that would be > a warranty issue. > I saw a test in an RV magazine where they used various grades of gas in a truck while towing a fifth wheel. Octane above what is needed to prevent knock reduces performance, and decreases mileage.     
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28 Aug 2003, 06:07 pm
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Re: Octane for Civic
I've found that my car revs more smoothly to the redline with the higher octane.
Perhaps my car is a little off spec which might explain the inconsistency. Also, I like the fact that the high octane usually has additives to keep the engine cleaner. Pars 98 Hatch zeno1234@mindspring.com wrote: > On 8/25/03 8:15 PM, in article EEx2b.25788$Zw4.5398@lakeread03, "Randy > Given" <GivenRandy@aol.com> wrote: > > > What octane should I use for my 2003 Honda Civic LX sedan? The manual > > recommends 87. Will higher octanes make any difference? Will they do any > > damage? > > > > > > Some higher octane's have more detergents, so that in the long run could > keep your fuel injectors cleaner. > > Also if one uses higher octane there is little chance of ever hearing the > engine ping....the engine may never ping using 87 but it is virtually for > sure that it will never ping if one uses 92 all the time. > > I have used nothing but high octane in any car I have owned since 1981 and I > have never heard a ping ever...I have made the choice to pay more for that > occurrence, or should I say non occurrence.
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28 Aug 2003, 07:10 pm
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Re: Octane for Civic
In article <3F4E8B4D.4244E66F@hotmail.com>,
pars <"sdaro(remove)"@hotmail.com> wrote: > I've found that my car revs more smoothly to the redline with the higher > octane. I bet if someone else put gas in your car, and you didn't know what it was, and you had to guess each week whether it was 93 octane or 87 octane.....you'd fail the test. You wouldn't be able to tell the difference. You're imagining things.
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28 Aug 2003, 07:11 pm
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Re: Octane for Civic
In article <3F4E8B4D.4244E66F@hotmail.com>,
pars <"sdaro(remove)"@hotmail.com> wrote: > I like the fact that the high octane usually has additives to keep the engine > cleaner. That was the case 20 years ago, but is not the case anymore. With every brand of gasoline, they all have the same additive package. The only difference from 86 to 94 octane is...the octane level, the fuel's ability to resist knock and pre-ignition. You're fooling yourself. But hey, it's your money. If you want to throw it down the drain, go right ahead.
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