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Using an octane rated higher than your vehicle will burn your cylinder heads?
Wiki User
∙ 14y ago
It can, ultimately. It will ruin the plugs and valves, the compression ratio will not be correct, thermal transfer will be to high. The timing will be wrong. It will not be efficient. The small amount of extra HP is not worth the expence when it goes wrong
Wiki User
∙ 14y ago
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Why we Using an octane rated higher than your vehicle?
is safer for the environment
What does using an octane rated higher than your vehicle do?
Wastes money.
How do you stop detonation?
Detonation, also referred to as knocking in gasoline engines happens when the gasoline vapor in the cylinder ignites prematurely before the piston is in an optimum position in the cylinder, usually, slightly before the piston has reached it maximum extension in the cylinder (referred to as BTDC - before top dead center). The solution is to try using a higher octane of gasoline as the higher octane slows the burning of the gasoline. If you are already using a 93 or 94 octane gasoline, take your vehicle to your friendly mechanic. As there may be other issues involved such as the incorrect timing of the engine.
Using an octane rated higher than your vehicle?
Use the lowest octane that does not 'ping' (detonation). The higher octane is not only more expensive, it can, in some cases, cost you performance. Its got to do with things like the latent heat of vaporization and other scientific formulas.
Using an octane rated lower than your vehicle?
Using an octane rated lower than your vehicle specification will damage the engine. I would recommend not doing that.
Is there an advantage of using 95 octane over 91 octane?
If vehicle does not "ping" severly on acceleration - no advantage
What octane does a 1995 Toyota 4Runner need?
A 3vze engine will take anywhere from regular 87 octane, up to 100 octane race gas. However what is your purpose to using higher or lower octane, Using regular, plus, or premium will work well. however higher mile engines would prefer 91 octane!
What is the lowest octane to use in an AD wagon?
87 octane regular is recommended. Using a higher octane is a total waste of money and will provide no benefits whatsoever.
What fuel octane is required for a 2000 Nissan maxima?
Per the owners manual 91 octane fuel (premium) is recommended. Using a lower octane decrease the performance of the vehicle.
Which is better 87 octane or 93 octane non ethenol gas?
There is no better. If your car is designed to run on 87 octane then using 93 octane is a total waste of money. The higher octane will provide no more power, no better fuel economy, and is of no benefit to the engine whatsoever. In fact using a high octane fuel in an engine designed for 87 octane may actually cause hard starting. Use exactly the octane as recommended by the manufacturer of the vehicle. Saying that, if your car is designed to run on 93 octane then using 87 octane can be detrimental to the engine due to pre-detonation that will be caused by running the lower octane fuel. It depends on whether the manufacturer recommends the use of higher octane fuel or says it is mandatory. Most vehicles built in the last few years where 93 octane is recommended can run on 87 octane with a slight loss in power. The engine fuel management system will adjust for the lower octane and there will be no harm to the engine. The bottom line is to use exactly what the manufacture recommends.
Does it help to use octane rated higher than your vehicle requires?
No. * Added - Unless you are prepared to modify the tuning of your engine, the recommended octane rating is the best. Higher octanes do not provide more power, they simply burn slower. The higher the octane, the harder it is to ignite, which in most cases, will have no effect, but can make make the car harder to start. If you have an older car and have the equipment to adjust your vehicles system, using a higher octane fuel can result in higher gas mileage and more power. It requires that the spark timing be advanced to begin burning slightly sooner - and if a lower octane is then used with the same set-up, it can destroy the engine.
Should you use super unleaded on a Porsche 997?
The owners manual should reference that but anecdoatally HECK YEAH. Octane needs are determined by the compression ration and the timing curve of the specific vehicle. Using higher octane fuel than is required by the engine is not harmful to the engine but can be costly if it is not really needed. Using fuel with a lower than required octane rating can be harmful to the engine.
