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You should use premium fuel with your INFINITI vehicle, as higher-octane fuel allows you to get the most out of your car or SUV’s engine. If you use regular gas in your INFINITI instead, you adversely affect the emission control system and may even void the vehicle’s warranty.

Can I put 87 octane in my Infiniti? You can run your car at 100% 87 octane if you want there are a couple members that do so anyway with no issues at all. However, you will be in a state of decreased performance, as the engine has to compensate for the lower octane rating to make sure that it doesn’t knock.

“Use premium unleaded gasoline with a posted octane rating of 91 or higher. If the octane rating is less than 91, you could damage the engine and may void your vehicle warranty. Some manufacturers recommend premium gas but say that regular or mid-grade gas can be used instead.

Using a higher octane than necessary If you opt for a higher octane than your manual recommends—say, 89 instead of 87—your car will be perfectly fine, an article on AAMCO’s blog explains. It will not, however, improve your car’s mileage or give it any sort of extra performance boost, according to Car Talk.

One state may require a minimum octane rating of 92 to be considered premium, while another may only require 90. Gas stations in the United States generally offer three octane grades: regular (usually 87 octane), mid-grade (usually 89 octane), and premium (usually 91 or 93).

When you’re at the gas pump, you’re given options – typically: Regular, Premium and Super (or Supreme or Premium Plus). But what’s the difference, other than the price? Regular gas has the lowest octane rating, Premium has a higher octane and Super (or Supreme or Premium Plus) has the highest octane.

Premium gas 90-93 is completely okay to put in a standard vehicle. Car experts say there is no risk of damage to a standard car using premium fuel.