In my experience with the Acura RDX, a common question is: Does the Acura RDX need premium gas? Knowing the difference between premium and regular gas is crucial. Premium gas has higher octane levels, which can affect how the engine performs.

For the Acura RDX, it’s not a must to use premium gas. But using it might give a small performance boost, especially when you’re doing things like towing or driving aggressively.

After looking into it more, I found that while the car doesn’t have to have premium gas, using it sometimes could help the engine last longer and perform better. But don’t worry if premium gas isn’t around – using regular gas won’t hurt the car.

What is Premium Gas?

When you see different gas types at a station, you might wonder about premium fuel. What sets it apart? Well, it’s all about the octane.

Octane rating measures how well fuel handles engine noise, called “knocking.” Premium gas, with an octane rating of 91+, fights this knocking, keeping your engine safe. Regular gas, with an 87 octane rating, isn’t as good at this. [1]

Premium gas gives your car’s engine a stronger shield, keeping it safer and smoother. It might cost a little extra, but for fancier or high-power engines, it’s a good choice.

How Does Premium Gas Differ From Regular Gas?

Premium gas is kind of like the “VIP” fuel for cars. It’s different from regular gas because it can handle more pressure without exploding too soon. This matters for fancy, high-power engines that might have trouble with regular gas, causing weird knocking sounds.

The cool thing about premium gas is that it helps keep the engine clean on the inside. A cleaner engine works better, saves more fuel, and lasts longer. It’s like a spa day for your engine, ensuring it runs smoothly and stays healthy.

Most cars do fine with regular gas, but if you’ve got a high-powered car, premium gas is like giving it special juice for top performance.

Why Some Cars Require Premium Gas?

Why some cars need premium gas while others don’t? Well, it all depends on their engines. High-performance engines, like those in fancy sports or luxury cars, work under high heat and pressure. To handle this, they need high-octane fuel to stop engine knocking.

If your car manual says to use premium gas, it’s best to stick to it. Ignoring this could mean weaker engine performance, less fuel efficiency, or even engine trouble.

But if your manual says regular gas is fine, you’re good to go. You don’t have to spend extra on premium gas unless your car specifically asks for it.

What Type of Gas Does an Acura RDX Use?

The Acura RDX doesn’t demand premium gas. Acura insists only the NSX needs it[2] But, here’s the kicker: other models like the MDX, TLX, RLX, and ILX suggest it too.

Here’s the thing: there are some pointers. Acura suggests, “Hey, premium gas helps the RDX perform better,” but it’s not obligatory.

According to the owner’s manual, the RDX runs fine on regular gas, rated at 87 octanes or higher. Yet, for top-notch performance, Acura leans towards premium gas, 91 octanes or higher. That’s what they recommend for the best ride.

Premium Vs. Regular Gas: Fuel Efficiency and Performance Comparison on RDX

Choosing between premium and regular gasoline impacts how the Acura RDX runs. Regular gas works fine, but premium can boost its efficiency and performance. Premium gas has more octane, which helps the engine work better and gives smoother operation, quicker acceleration, and maybe even better gas mileage.

Talking about gas mileage, regular gas gives a bit more for every gallon. The EPA says it’s around 22 MPG in the city, 28 MPG on the highway, and 24 MPG overall. With premium gas, it’s a touch lower: 21 MPG in the city, 27 MPG on the highway, and 23 MPG overall. Though it seems small, it could add up if you drive a lot. If saving money at the pump is your thing, regular gas might be the way to go.

For how it performs, premium gas is a bit better. With higher octane, it helps the engine run smoothly and gives a bit more power. For example, using premium gas might shave off 0.2 seconds in going from 0 to 60 mph compared to regular gas—nothing massive, but it’s noticeable.

Cost Comparison Between Premium and Regular Gas

Deciding between regular and premium gas for an Acura RDX means comparing costs. Premium gas costs more, about 20 to 30 cents extra per gallon than regular.

If you drive a lot, you’ll notice the difference in price. But paying more might be worth it if you want better performance and fuel efficiency. Premium gas seems to improve these things.

Sure, regular gas saves money right away. But thinking about the long run is important too. It’s like choosing between saving now or getting better performance later.

In the end, it’s your call based on what you prefer and what fits your budget. Thinking about the immediate cost versus the long-term benefits helps make the choice between regular and premium gas for an Acura RDX.

What Happens if I Mix Premium and Regular Gas in my Acura RDX?

Mixing premium and regular gas in an Acura RDX isn’t a great move. It affects how my car runs, lowering fuel efficiency and sometimes leading to engine knocking. This mix isn’t what the engine’s built for, and it might wear it down faster, too.

Using just one type of gas—either premium or regular—keeps things better. Premium gas has higher octane levels, meeting the engine’s needs for top-notch performance. Regular gas might not match those standards, affecting how the engine performs and potentially causing problems in the long run.


As conclusion, the Acura RDX doesn’t insist on premium gas, but using it is recommended for better performance. Regular gas is okay, but might slightly affect how well the car performs and its fuel efficiency. On the flip side, choosing premium gas brings perks like a performance boost, improved fuel economy, and less strain on the engine.

So, the big question: Does Acura RDX require premium gas? Well, while it’s not a must, I’d lean towards using premium gas for an Acura RDX. It can significantly amp up how well your car runs and saves fuel in the long run, despite the higher cost.

Deciding between regular and premium gas for your Acura RDX isn’t straightforward. Regular gas works fine, but premium gas can level up your driving experience. Still, think about the extra cost – it might not be worth it for everyone.

Ultimately, choosing premium gas for your Acura RDX depends on how you drive and what you prefer. Keep all factors in mind before deciding.