What is high grade gasoline?
Regular gas is rated at 87 octane in most states, while premium gas is often rated higher at 91 or 93. Fuel with a higher octane rating can stand up to higher compression before it detonates. Essentially, the higher the octane rating, the lower the likelihood that detonation happens at the wrong time.
Do you always use the fuel recommended in the owners manual?
ALWAYS, ALWAYS, ALWAYS use the fuel recommended in the owners manual of your car, or any signs on the fuel door or cap. When engineers say to use a certain fuel, we have good reasons for doing so.”
Which is the correct octane rating for gasoline?
Selecting the Right Octane Fuel. What is octane rating? Octane rating is the measure of a fuel’s ability to resist “knocking” or “pinging” during combustion, caused by the air/fuel mixture detonating prematurely in the engine. In the U.S., unleaded gasoline typically has octane ratings of 87 (regular), 88–90 (midgrade), and 91–94 (premium).
Do you need high octane gas in your car?
If you’re not going to pay for high octane fuel, you shouldn’t buy a car that requires it. Buy a car that uses cheap fuel if you’re too cheap to buy anything else based on the car’s needs. Now, if an owner’s manual only recommends high octane fuel, there is room for debate, but if it’s required, the choice is much simpler.
Do you need high octane gas for forced induction?
As with some modern forced induction cars, high octane is recommended for maximum performance but it’s not required. However since gas price is fairly cheap I would strongly encourage everyone to use high octane gas in their cars.
Do you have to use high octane gasoline?
If your vehicle requires high octane fuel, you should use the fuel grade recommended by your manufacturer. Some drivers can use a lower octane fuel with no problems, but it’s no guarantee that will happen with you and your vehicle.
ALWAYS, ALWAYS, ALWAYS use the fuel recommended in the owners manual of your car, or any signs on the fuel door or cap. When engineers say to use a certain fuel, we have good reasons for doing so.”
What are the grades of gas at gas stations?
Most gas stations offer three octane grades: regular (usually 87 octane), mid-grade (usually 89 octane), and premium (usually 92 or 93). The ratings are posted on bright yellow stickers on each gas pump.
Can you use unleaded gas with a low octane rating?
“Use premium unleaded gasoline with a posted octane rating of 91 or higher. If the octane rating is less than 91, you could damage the engine and may void your vehicle warranty. Note that this applies only to engines that require premium gas.