Quick Answer: Is It OK To Mix 89 And 93 Gas?

Is there a difference between 89 and 93 gas?

Slightly better fuel economy is there, but it’s not worth the huge price gap from regular to premium.” Most gas stations offer three octane levels: regular (about 87), mid-grade (about 89) and premium (91 to 93).

The higher the octane, the greater resistance the fuel has to pinging during combustion..

What happens if you mix premium and regular gas?

It probably won’t hurt anything. If your car requires regular gas, the blend will have plenty of octane and detergent and may even run a little better or get a bit better mileage. If the car requires premium, the blend won’t have as much octane as it should. … Older cars may start pinging.

Will 93 octane hurt my engine?

The higher octane gives premium gas greater resistance to early fuel ignition, which can result in potential damage, sometimes accompanied by audible engine knocking or pinging. … But if the vehicle manufacturer says your engine needs only 87-octane regular, that is what you should use.

Does premium gas last longer?

Sadly, there’s nothing in premium gasoline that would make it last longer than other fuels from the pump. Since the distinguishing feature is the higher-octane levels, the only real benefit you gain is lowering the chance of engine knocking, which isn’t much of a threat on most modern fuel systems.

Does premium gas burn slower?

Octane does not offer any better fuel mileage, increase engine horsepower, or make the engine start quicker. Higher octane only reduces the likelihood of engine knock or ping. … Because higher octane gas burns slower, it is more resistant to knock when subjected to higher RPM and cylinder pressures.

What happens if you mix 93 and 87 gas?

If you usually fill your tank up with 87-octane gasoline and you accidentally put in a higher octane blend (say, 91, 92, or 93), don’t worry. You’re actually filling your car or truck with a different blend of gas, which means it will burn differently in your engine.

Which gas is better 87 89 or 93?

Regular gas is rated at 87 octane in most states, while premium gas is often rated higher at 91 or 93. Fuel with a higher octane rating can stand up to higher compression before it detonates. Essentially, the higher the octane rating, the lower the likelihood that detonation happens at the wrong time.

Does premium gas give better mileage?

Premium gives better gas mileage Because premium gas has a higher octane rating than midgrade or regular gas, it produces a little more power when burnt. Designed for performance cars with large, powerful engines, premium also helps minimize the risk of preignition inside highly-stressed, hot engine cylinders.

What happens if you don’t put premium gas in a Lexus?

If the octane rating is less than 91, you could damage the engine and may void your vehicle warranty. If heavy knocking is heard when using gasoline rated at 91 octane or higher, the engine needs service.” … Some manufacturers recommend premium gas but say that regular or mid-grade gas can be used instead.

Is there a big difference between 91 and 93 octane?

So if you stick with using, say, 93 after having been using 91, you’ll notice even further fuel economy after a tank, or two. The higher the octane means a slower and longer burn which benefits all cars to a degree.

Is premium gas really worth it?

Typically, high-performance cars require premium, because their engines have higher compression ratios, while other cars can run just fine on lower octane gas. … The FTC sums it up this way: “In most cases, using a higher octane gasoline than your owner’s manual recommends offers absolutely no benefit.”

Is it OK to mix gas octanes?

By using higher octane fuel where lower is specified, you will create no problems with your engine. It does not (by popular belief) add any power to your engine, but will not harm it at all. … When you mix different octanes of fuel, you are either increasing or decreasing the octane of the fuel at hand.