Question: What Octane Is Costco Premium Gas?

What kind of gas does Costco use?

At Costco, we’re commited to providing high-quality products at the lowest prices—that includes our Costco Gas Stations.

That’s why all Costco Gas Stations contain Kirkland Signature™ Gasoline in both regular unleaded and premium grades..

Is premium gas high octane?

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.

What is the best brand of gasoline?

Top tier gasoline simply refers to gasoline that has more fuel additives that will make your car become more efficient and reliable….Here is a list of the best quality gas stations that you can go to:Shell.Sinclair.Texaco.Costco.Conoco.Chevron.BP.Exxon.More items…•

Why is Shell gas so expensive?

The most likely scenarios for Shell gasoline to be more expensive is that their additive is more expensive to add, or that other stations are using the base gasoline from the local distributor refinery.

Will 93 octane increase HP?

Premium gas must be, by law, at or above 91 percent, although you do also see 93 percent octane ultra-premium at many stations. … Octane does not offer any better fuel mileage, increase engine horsepower, or make the engine start quicker. Higher octane only reduces the likelihood of engine knock or ping.

Is Costco gas better than Shell?

Costco gas is high quality. Top Tier certified, just like Shell. Costco’s gas being “Top Tier” certified is the key. Yes, it really is better.

Is it worth it to buy premium gas?

Typically, high-performance cars require premium, because their engines have higher compression ratios, while other cars can run just fine on lower octane gas. … The FTC sums it up this way: “In most cases, using a higher octane gasoline than your owner’s manual recommends offers absolutely no benefit.”

What octane is premium gas at Costco?

Gasoline ​octane can vary by state, but at Costco, it’s typically 87 octane for Regular Unleaded and 91 octane for Premium Unleaded Gasoline. Q: Where does Costco get its fuel? A: Costco buys fuel from major refineries and distributors in each area.

Is Costco gas lower quality?

Costco’s gas may be the cheapest in town, but it’s still high-quality. … It doesn’t matter whether you buy regular or premium grades of fuel, you’re always getting Top Tier gas at Costco. Costco’s regular and premium fuel meets Top Tier standards. Costco isn’t the only Top Tier gasoline retailer around.

Is Shell gas Really Better?

Gas Test Findings The results showed that on average, Top Tier gasoline had 19 times fewer carbon deposits on injectors, intake valves, and in the combustion chamber when compared to regular gasoline. … Variation in the results is attributed to the detergents used by different brands.

Does Costco have 93 octane gas?

Regular unleaded (87 octane), Premium unleaded (91 octane), and Diesel (at select locations only). … Octane levels are the only difference between regular and premium unleaded gasoline sold at Costco.

Does Costco premium gas have ethanol?

Costco 91 has no ethanol in it as per their pumps. It is listed as a “Top Tier” gas so they would only be getting it from a couple of suppliers if so. Fuel consumption is not a sign of how “good” gas is. Usually if there’s ethanol in the fuel your consumption will go up.

Why is Costco gas cheap?

Costco can sell gas at between 6 cents and 12 cents below the market price, according to research firm Trefis. It discounts gas in the hopes that people will fill up and then head over to its stores. … Gas is already a low-margin product, and climbing prices can turn gasoline into a money loser for the company.

Who has the best gasoline?

Prominent top-tier gasoline suppliersBP.Chevron.Conoco.Costco.Exxon.Holiday.Kwik Trip.Mobil.More items…•

Is Chevron gas Really Better?

There’s no such thing as “better gas.” Companies like Chevron try to tell you their gasoline is superior because it has Techron in it. However, all gas has detergents that prevent clogging in the fuel injector, and no brand of gas is better quality than any other for your vehicle.