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Wastes money.
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∙ 13y ago
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Why we Using an octane rated higher than your vehicle?
is safer for the environment
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.
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.
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.
Is there an advantage of using 95 octane over 91 octane?
If vehicle does not "ping" severly on acceleration - no advantage
Using an octane rated higher than your vehicle will burn your cylinder heads?
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
What is the fuel octane reguirement of a 08 buick lucerne cts with the 4.6 northstar v8?
From the owner's manual: "If your vehicle has the 4.6L V8 engine (VIN Code Y), use premium unleaded gasoline with a posted octane rating of 91 or higher. You can also use regular unleaded gasoline rated at 87 octane or higher, but your vehicle's acceleration could be slightly reduced, and you might notice a slight audible knocking noise, commonly referred to as spark knock." So you can use either regular, mid-grade, or premium. I have not noticed any loss of acceleration or spark knock by using 87 octane fuel.
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.
Why is your car making a gurgelling noise?
2 Possibilities come to mind immediately: 1) Low coolant and air in the cooling system. As coolant is circulated through the heater core you may hear this noise you describe 2) Perhaps vehicle is "pinging" due to Spark timing advanced too far or the fuel you are using has too low an octane rating for the vehicle. try another grade of fuel. Perhaps a 91 octane if you are using an 89 octane rated fuel.
