Can I Mix Regular And Premium Gas? The Definitive Answer For 2023


The Simple Guide to Regular, Plus, and Premium Gas
The Simple Guide to Regular, Plus, and Premium Gas from caradvise.com

One of the most frequently asked questions about gasoline is whether or not you can mix regular and premium gas. People often wonder if it's safe to do so, or if it will harm their engine. With gas prices constantly fluctuating, it's understandable that you might be looking for ways to save money at the pump. In this article, we'll explore the answer to this question and give you all the information you need to make an informed decision.

What is Regular Gasoline?

Regular gasoline is the most commonly used type of gasoline. It has an octane rating of 87, which means it's able to withstand a certain amount of pressure before it ignites. This type of gasoline is suitable for most cars, and it's what you'll find at most gas stations. Regular gasoline is also the cheapest type of gasoline, so it's the most popular choice for people who want to save money at the pump.

What is Premium Gasoline?

Premium gasoline, on the other hand, has an octane rating of 91 or higher. This type of gasoline is designed for high-performance engines that require a higher octane rating to prevent engine knocking or pinging. Premium gasoline is more expensive than regular gasoline, so it's typically only used in luxury or sports cars, or in high-performance vehicles like race cars.

Can You Mix Regular and Premium Gasoline?

The short answer is yes, you can mix regular and premium gasoline. In fact, many gas stations actually mix the two types of gasoline together to create a mid-grade gasoline with an octane rating of around 89. This is done to use up the extra supply of one type of gasoline or to provide a more affordable option for customers who want something between regular and premium gasoline.

However, just because you can mix regular and premium gasoline doesn't necessarily mean you should. If your car requires a certain octane rating, it's important to stick to that rating to avoid engine damage. Mixing gasoline can also affect your car's performance and fuel efficiency, so it's not recommended unless you have a specific reason for doing so.

When Should You Mix Regular and Premium Gasoline?

There are certain situations where mixing regular and premium gasoline might make sense. For example, if you accidentally fill up your car with the wrong type of gasoline, you might want to mix the two to avoid draining your tank and starting over. However, it's important to only mix the two types of gasoline in small amounts, and to use it up quickly to avoid any potential engine damage.

Another situation where mixing regular and premium gasoline might make sense is if you're driving a high-performance car that requires a high octane rating, but you can't find a gas station that sells premium gasoline. In this case, you might be able to mix regular and premium gasoline to create a mid-grade gasoline with an octane rating that's suitable for your car.

The Bottom Line

While it is possible to mix regular and premium gasoline, it's not something you should do on a regular basis. If your car requires a certain octane rating, it's important to stick to that rating to avoid engine damage. Mixing gasoline can also affect your car's performance and fuel efficiency, so it's best to avoid it unless you have a specific reason for doing so. Ultimately, the best way to save money on gas is to drive less, drive more efficiently, and keep your car well-maintained.


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