I found a local gas station that sells 101 octane, will this high of an octane damage or cause anything to happen the engine. I know the higher the octane the better but is this too high for a stock car.

 

Shouldn't hurt the car at all. "The higher the better" isn't necessarily true. Higher octane is good if the engine needs it, if it doesn't then it's just a waste of money. A stock Z06 should run just fine on 93 octane.


[Modified by wstory1, 12:40 PM 5/19/2002]

 

Higher octane actually burns slower. If the engine is not designed to take advantage of it, it's quite possible you would loose horsepower.

 

No need to spend the extra money since no actual benefits.

 

I don't think that anything over what is specified in the owners manual is gona help ya. Maybe 94 octane at the most

 

93 or 94 is all you need .. don't waste your money. You could even see your performance suffer a little with higher octane fuel.

 

Higher than needed Octane fuels do no harm, they also do no good.

The Octane rating designates the resistance of the fuel to pre-ignition from a combination of heat and pressure in the cylinder. All gasolines have virtually the same rate of burn, this is not part of the Octane rating. Higher Octane allows one to utilize a greater degree of ignition advance, because it resists detonation better. However, if the engine is tuned to utilize maximum advance for 92 Octane fuel, running 110 will accomplish not a thing. The Gasoline is the same, octane ratings are adjusted with the additive package, so the amount of energy in a gallon of 87 Octane is the same as that in a gallon of 110 Octane. Because of EPA requirements, all grades of fuel burn clean and control engine deposits well.

The reason high performance engines use higher Octane is because power comes from cylinder pressure. Higher dynamic cylinder pressures require fuel that is more resistant to detonation.

This is a nice article on the subject:

http://www.osbornauto.com/octane.htm

Short answer is this: On a really hot day (say 100 degrees), with very high humidity (over 60%), it is possible the ZO6 MIGHT knock, causing the ECM to back off timing, which will reduce power. In this instance, the 110 Octane fuel will be an advantage. Otherwise, it just costs more money and does nothing at all.

:cheers:


[Modified by kwillmorth, 6:29 PM 5/20/2002]

 

jshindler and kwillmorth preach the true octane gospel.

You can get a good load of 100LL at your nearest airport.
The Z06 is fast but it's still not an airplane.

A nearplane maybe......

 

I think it depends on the gas in your area. In KC we have crappy 92 octane, so I would mix it with half a tank of the 101 if I could.