There are quite a few misconceptions about when to use high octane gas in your car. Some people believe that high octane gas provides better performance, which is true if your engine is designed to use this type of gasoline. If your user manual tells you that your engine requires regular unleaded, that is the only type of fuel you should be using.
Some cars require the use of high octane gas, while others merely recommend using this type. With all of the advances in automobile engine technology, cars that recommend using premium gas will typically run on regular unleaded with no major issues whatsoever. At most, you may notice a slight difference in the time it takes to accelerate to your desired speed, but the average driver likely wouldn’t notice such a minute difference. Again, refer to the owner’s manual for what the manufacturer of your vehicle recommends.
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Premium gas is more expensive because of the higher percentage of octane. More expensive gas does not inherently mean better gas. Old engines were not able to adjust to fuels with varying octane levels which is why many of us are familiar with the legendary “ping” or “knock” sound that may come from the engine. Today, engines can compensate for low levels by monitoring knock activity and adjusting ignition advance.
Oil companies have spent decades selling you various types of gas, implying that premium is better because it contains additives to help keep carburetors and engines clean. But what are those additives? We are familiar with Ethanol, but for a lot of us, that is all we know about. In most situations, you don’t know because the companies do not disclose that type of information to the general public. If you don’t know what you are purchasing, let alone why you’re purchasing it, you need to do your research. Refer to your owner’s manual to get an idea of where to begin with your gas requirements.
Where you buy your gas can also make a difference. Not all gas stations serve the same gas, the main difference being the additives they put into it. Each company has its own blend and it’s difficult to determine what is best. Always check the labels at the gas pump or do some research for details if you’re curious or concerned about the gas you’re getting at local stations. Also, pay attention to how your vehicle performs after each fill up. If your engine starts “pinging” or you experience a noticeable drop in performance or fuel economy, it could be that your engine doesn’t like the fuel you’re giving it.
If you have concerns regarding the gas you’ve been using, or you’ve heard a noise that is worrying you, please come visit us at your local AAMCO Minnesota! We are available and happy to answer any and all questions you may have about your car. Give us a call today at 1-800-462-2626 or schedule an appointment online.