Ask a Jeep Dealer: Does the Grade of Gas I Use Matter?

Given fluctuating gas prices, many drivers are tempted to stick with the cheapest and lowest-octane gas they can find. Even if your owner’s manual recommends a specific grade of gasoline, you may be wondering whether the grade of gas you use for your Jeep SUV matters much. Your Jeep dealer will tell you from experience that it’s vital to use the recommended gas for your vehicle.

Can’t I Use Any Old Gas for My Car?

You would think that as long as it burns, it’s okay for your engine. However, since octane is a rating of the pressure under which fuel ignites, using the wrong grade can harm your engine or hobble its performance.

What if I Use the Wrong Grade of Gas?

Your car won’t instantly turn into a pumpkin because you used 87 octane instead of 91 — nor will it necessarily run better because you used 93 instead of 87. However, because most engines are designed for a specific octane rating, it’s essential to use the correct fuel to prevent long-term damage.

Recommended Gasoline Grades

Your Jeep owner’s manual will recommend a specific grade of gasoline for your vehicle. Depending on which model you drive, this could range from a lower 87-octane to a premium 91 or 93-octane gasoline. Manufacturers specifically recommend these grades of gas to ensure the best performance and mileage from your car.

A Word on Cheap Gas

Besides the octane rating, it’s important to remember that different tiers of gas will contain specific additives designed to clean the engine and optimize its performance. This is one reason your car may not run as well when using off-brand gasoline.

If you’ve noticed that your Jeep vehicle hasn’t been running as well, even though you’re using the right fuel and the same brand as usual, there could be something wrong with your car’s gas intake or fuel tank. If that’s the case, stop by the Jeep service center at Brooklyn Chrysler Jeep Dodge RAM, and we’ll get your car back on the road in tip-top shape.