What happens if two fuel grades are mixed

A lower octane for premium cars will result in reduced performance. Having said that, if your car requires regular fuel, the best thing to do is fill up with regular fuel.

Using premium fuel will have no added benefits. Fill up with just enough regular gas to reach the next nearest station. Today, octane boosters are also available in pump stations. You can purchase one and boost the octane level in your fuel tank.

Using premium gas in a regular gas car has no benefit in most cars. According to the Federal Trade Commission, using gasoline with a higher octane rating than the recommended one often brings zero benefits. Your engine will not perform faster or any better than before. It only costs you more. While some states classify gasoline as premium when the octane rating is 92, some do so with only However, if you own a car with turbochargers or a heavy engine, you need to use high-octane gas.

That is because these kinds of vehicles come with higher compression ratios, and failure to use premium fuel may result in knocking. Pilots of America. This came up during a ground session today. I've heard the answer but a lot of fuel has been burned since that time umpteen years ago. I've never even seen the red 80 in use That's going back to at least Is it around at all these days?

But, the point of the post What color results when mixing Red 80 and Blue LL? Edit: Red type is correction my error. Most cars sold in North America are designed to run on 87, even when manuals recommend a higher octane, Leroux says. If your manual recommends premium 91 , it will usually say that you can use a lower grade but should switch back if you get pinging or knocking. Often, it will recommend sticking to higher octane in really hot weather or if at higher altitudes.

Car companies, some experts and Consumer Reports itself say you should use what the manual recommends — the site notes that Bartlett's view is personal. If premium is recommended, rather than required, it means that you can use regular — but you'll lose a little horsepower.

How much? Learn more. Is it generally acceptable to use LL and grades of AVgas mixed into the same tank? Ask Question. Asked 3 months ago. Active 3 months ago. Viewed times. This is assuming the aircraft is approved for the use of either of those grades. Improve this question. Ryan Mortensen Ryan Mortensen 8, 26 26 silver badges 77 77 bronze badges. Only LL. I've never come across it either. I've had someone tell me that if you mix them, that the colors neutralize and the fuel becomes clear.

I don't know if that's true or an urban legend.