Understanding The 3 Different Types of Fuel Grades

What You Should Know About the Different Types of Fuel Grades
When you stop at Wayzata BP to fill up your car, you’ve probably noticed that there are a few choices: regular, mid-grade, and premium. But what do those mean? Why are there different types of fuel grades, and does it really matter which one you use?
The answer is yes—it does matter. Choosing the right fuel grade can help your car run better, last longer, and even save you money. In this blog post, we’ll explain the different types of fuel grades, what makes them different, and how to choose the best one for your vehicle.
What Is a Fuel Grade?
Fuel grades are based on something called an octane rating. This number tells you how well the fuel can handle pressure in your engine without causing something called “knocking.” Knocking is a popping sound that happens when the fuel burns in the wrong way. It can hurt your engine over time.
Most gas stations, including Wayzata BP, offer three different types of fuel grades:
- Regular (87 octane)
- Mid-Grade (89 octane)
- Premium (91–93 octane)
Let’s take a closer look at each one.
Regular Gasoline (87 Octane)
Regular fuel is the most common type of gasoline. It has an octane level of 87 and is usually the cheapest option. Most cars on the road are made to run on regular gas.
When to use it:
- If your owner’s manual says to use regular gas.
- If you drive a regular car or SUV.
- If you want to save money at the pump.
Why it’s good:
- Costs less than other fuel types.
- Works well in most vehicles.
- Keeps your engine clean with added detergents.
At Wayzata BP, our regular gasoline meets high quality standards and is designed to help your engine stay clean and efficient.
Mid-Grade Gasoline (89 Octane)
Mid-grade gas has a little more octane than regular, usually around 89. Some cars need this type of fuel to run properly.
When to use it:
- If your car’s manual recommends it.
- If you notice your engine knocking with regular gas.
- If you want better performance without using premium.
Why it’s good:
- May help your engine run smoother.
- Can prevent knocking in some vehicles.
- Might give a small boost in fuel economy.
Not all cars need mid-grade gas, but for the ones that do, it’s important to use it. Using regular fuel in a car that needs mid-grade can lead to engine problems.
Premium Gasoline (91–93 Octane)
Premium fuel has the highest octane level, between 91 and 93. It’s made for high-performance cars and vehicles with turbocharged or high-compression engines.
When to use it:
- If your vehicle’s manual says premium is required.
- If you drive a sports car or luxury vehicle.
- If your car has a turbocharged engine.
Why it’s good:
- Stops knocking in high-performance engines.
- Helps your car perform at its best.
- May improve fuel efficiency in engines made for it.
At Wayzata BP, our premium gas includes cleaning agents that reduce carbon buildup and help your engine run smoothly.
Why the Right Type of Fuel Grade Matters
You might think using higher octane gas is always better, but that’s not true. Using a fuel grade that’s too low for your car can cause engine knocking, lower performance, and even damage over time. But using premium gas in a car that doesn’t need it won’t really help—it just costs more.
The key is to use the grade your car is built for. You can find this information in your car’s owner’s manual or on the inside of the fuel door.
What Happens If You Use the Wrong Fuel Grade?
Here’s what might happen if you don’t use the right type of fuel:
- Lower performance – Your car might feel slower or less powerful.
- Worse fuel economy – You’ll need to fill up more often.
- Engine damage – Knocking over time can wear out engine parts.
That’s why understanding the different types of fuel grades is important. At Wayzata BP, we offer all three main grades so you can give your car exactly what it needs.
Is Premium Fuel Always Better?
A lot of people think premium fuel is better for every car. That’s a myth.
Premium gas is only better if your engine is designed for it. It won’t clean your engine better than regular gas, and it won’t give your car extra power unless your engine requires it. So unless your car says “premium required”—don’t spend the extra money.
Fuel Grades and Engine Types
Today’s engines are more advanced than ever. Some engines need higher octane to work well. For example:
- Turbocharged engines usually need premium.
- High-performance sports cars often require premium fuel.
- Some newer engines might use mid-grade for better performance.
On the other hand, hybrid and economy cars are usually made for regular gas.
If you’re unsure, stop by Wayzata BP. Our team is happy to help you figure out which fuel grade is best for your car.
What Is Diesel Fuel?
Diesel isn’t a fuel grade like regular or premium gas. It’s a completely different type of fuel made for diesel engines. You’ll find diesel in trucks, some vans, and heavy-duty vehicles.
Never use diesel fuel in a gasoline engine—it can damage your engine and cost a lot to fix. At Wayzata BP, we also provide high-quality diesel for drivers who need it.
How to Pick the Right Fuel Grade
Here are a few simple tips:
- Read your owner’s manual – It will tell you exactly which fuel to use.
- Don’t go lower than recommended – It could hurt your engine.
- Don’t go higher than needed – It won’t help and will cost more.
- Pay attention to how your engine sounds – If you hear knocking, you might need a higher octane. If you’re not sure, just ask one of our friendly team members at Wayzata BP or you can schedule an appointment here!
Final Thoughts
Knowing about the different types of fuel grades helps you take better care of your vehicle. When you choose the right fuel, your engine will run better, you’ll get better gas mileage, and you could even save money in the long run.
At Wayzata BP, we’re proud to offer top-quality regular, mid-grade, and premium fuels. All of our gasoline is blended with detergents to help clean your engine and keep it running its best.
So the next time you pull up to the pump, think about what your car really needs—and feel confident knowing Wayzata BP has you covered.
Visit Wayzata BP Today
If you have any questions about different fuel grades, octane levels, or what’s best for your vehicle, we’re always here to help. Stop by Wayzata BP for friendly service, clean fuel, and expert advice.
Wayzata BP – Fueling Your Drive with the Right Grade Every Time.

Sources
U.S. Energy Information Administration (EIA)
Explains the octane ratings of gasoline, how fuel grades differ, and which vehicles require which fuel types.
https://www.eia.gov/energyexplained/gasoline/octane-in-depth.php
Federal Trade Commission (FTC): Premium Gasoline Facts
Covers when premium gasoline is actually necessary and debunks myths about its benefits in standard engines.
https://consumer.ftc.gov/articles/premium-gasoline-facts
AAA Newsroom – AAA Study on Premium vs. Regular Fuel
AAA’s research on whether using premium gas in a car that doesn’t require it makes any difference in performance or efficiency.
https://newsroom.aaa.com/2016/12/aaa-finds-premium-fuel-not-worth-extra-money-many-vehicles/
U.S. Department of Energy – Fuel Economy.gov
Offers guidance on choosing the right fuel type, how ethanol blends affect performance, and why octane matters.
https://www.fueleconomy.gov/feg/octane.shtml
BP Global – Fuels and Vehicle Performance
Information about BP’s fuel formulations and how different grades are designed to support engine health and performance.
https://www.bp.com/en/global/corporate/what-we-do/bp-fuels.html