Is 91 gas and 93 the same?

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).

Does Shell have 91 octane?

All gasoline brands have both pure and ethanol-containing gasoline under the same brand names. For example, Shell V-Power ranges from 91 to 93 octane both with and without added ethanol.

What gas is 91 octane?

Premium gas
Premium gas is usually considered to be any gasoline that has an octane level of 91 or higher. You’ll usually see these listed on pumps as 91 or 93. Sometimes, 93 octane will be listed as “super-premium” or “ultra.” Unleaded gasoline is usually considered to be “regular” when it is 87 octane.

Does Esso 91 contain ethanol?

According to Dan McTeague, a noted petroleum analyst, Shell and Esso 91 are both ethanol free. All other grades from the companies have some ethanol content, but the mid-grade blend is pure gas, which means it not only corrodes less than ethanol blends, but is less likely to deteriorate when stored.

Can I put 91 gas in my car?

“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. If heavy knocking is heard when using gasoline rated at 91 octane or higher, the engine needs service.”

Why does California only sell 91 octane?

Because only a certain percentage of a barrel of oil can be refined into higher octane gas, and California has a higher ratio of cars requiring high octane fuel.

What gas stations have 91 octane?

Exxon and Mobil offer premium unleaded gasoline with an octane level of 93, but it may also be blended with 91-92 octane gas in some areas of the United States. Look for Exxon Supreme gas or Super+ at Mobil stations.

Which gas stations have the best quality gas?

1. Shell. The company has been around for more than a century. In that time,you can bet that Shell and its staff have learned a lot about fuel. Shell

What is the best octane gas?

1. Editor’s Pick: Royal Purple Max Boost. Our top performing octane booster is the Royal Purple Max Boost,designed to increase horsepower and

What is the highest octane fuel?

Octane Ratings. The standard octane fuel for most vehicles as of 2012 had a RON of about 92 and a MON of about 82, giving it an R+M/2, PON or AKI of 87. High octane fuel for cars typically is considered anything with a RON of 95 or higher, a MON of 85 or higher and a R+M/2 of 90 or higher.