Premium gasoline is generally considered any type of gasoline with an octane level of 91 or greater, with 91 octane and 93 octane being the most common versions of premium gasoline available at gas stations in the United States (93 octane gasoline may be called “ultra” or “super-premium” in some cases).
Why can't I find 91 octane gas?
This means that you are using fuel with an octane rating below that required of your engine. If detonation occurs often and long enough, this can cause damage to your engine. All that being said, if your car does NOT require or recommend 91 or 93 octane, then you do not have to use that fuel.
Does Shell have 91 octane?
vpower - 91 octane Shell V-Power® NiTRO+ Premium Gasoline sets a new standard in fuels innovation and redefines protection. With a special formulation, Shell V-Power NiTRO+ Premium Gasoline delivers triple-action protection against gunk, wear, and corrosion for optimum engine performance.
What octane is sold at gas stations?
Gas stations in the United States generally offer three octane grades: regular (usually 87 octane), mid-grade (usually 89 octane), and premium (usually 91 or 93 gas).
Can I use 91 octane instead 93?
It's fine mixing them, and this is essentially the reason that you can put a full tank of 87 in and an octane booster will—when mixed throughly—be 91 or above if you put the right amount in. So putting 91, 92, 93 in are all fine for your car.
What is the difference between 91 and 93 gas?
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.Dec 1, 2021
Can you buy 91 octane gas?
“Premium” Gas Can Vary By State One state may require a minimum octane rating of 92 to be considered premium, while another may only require 90. Gas stations in the United States generally offer three octane grades: regular (usually 87 octane), mid-grade (usually 89 octane), and premium (usually 91 or 93 gas).
What states only have 91 octane?
State Regular Unleaded Premium Unleaded
-------- ---------------- ----------------
Georgia 87 93
Hawaii 87 92
Idaho 85/87 91
Illinois 87 91
What happens if you use 87 octane instead of 91?
“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. Some manufacturers recommend premium gas but say that regular or mid-grade gas can be used instead.
Why does California only sell 91 octane?
Basic answer is because we drive too many BMW's and high compression or turbo engines that require high octane fuel compared to most states where the average car is an Impala.
Is 90 gas the same as 91?
What is octane rating? In the U.S., unleaded gasoline typically has octane ratings of 87 (regular), 88–90 (midgrade), and 91–94 (premium).