What happens if you put 89 gas in a 87 car?

In most cases, the vehicle will run fine, but you may experience less power and a decrease in gas mileage. In more serious cases, you may hear engine knocking or valve chatter because the fuel isn't burning right. These things could damage your engine and you should take it to your mechanic.
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Can I put 89 gas in my 87 car?

Let's start with the easy one. Most cars on the road recommend a standard grade 87 or 89. 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.
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Is 89 and 87 the same gas?

Gasoline with an octane level of 87 is considered “regular,” with gasoline sold at 89 octane often labeled “midgrade” by most gas stations.
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What happens if I use 89 gas?

Octane ratings refer to the “87” or “89” you often see on regular and plus gas pumps. The higher the octane rating, the less likely a car will experience a “mistime combustion,” which creates the engine knock sound, according to The Drive. A higher-octane gas, such as premium, helps prevent engine knock.
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Does 89 gas Make your car faster?

The higher octane of premium gas won't make your car faster; in fact, the opposite is possible because higher-octane fuel technically has less energy than lower-octane fuel. It's the fuel's ability to be compressed more without pre-igniting that results in more power when used in the appropriate engine.
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That's What Happens When You Put the Wrong Fuel in a Car



What happens if I accidentally put the wrong gas in my car?

Hint – it's not. Typically, although there are some variations among engines, putting a higher-octane gas into your car than it requires will neither help nor hurt your car's performance. There are some engines that are not designed to burn higher-octane fuel and you may see a reduction in power and fuel economy.
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Is 89 a regular gas?

Gas stations typically carry three octane grades. State laws regulate which octane levels can be listed as premium, midgrade or regular. Typically “regular” gas is 87 octane, “midgrade” is 89 octane and over 91 octane is “premium” gasoline. Some states label top-tier gasoline with 93 octane as “ultra” gas.
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Will 89 gas hurt my engine?

“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. If heavy knocking is heard when using gasoline rated at 91 octane or higher, the engine needs service.”
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Can I put 89 gas in my Toyota Camry?

Currently, there aren't any Toyota models that require hi-octane fuel. The minimum octane rating your vehicle requires is 87 octane, which is standard pump gas or regular fuel.
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Is higher octane gas better for older cars?

No. High octane gasoline doesn't outperform regular octane in preventing engine deposits from forming, in removing them, or in cleaning your car's engine. This is a myth.
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Does 89 last longer than 87?

Re: does 89 grade gas last longer than 87? There is absolutely no reason to run a medium octane grade or high octane grade of gasoline UNLESS THE ENGINE IS PINGING.
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Does 89 gas burn slower?

These octane level numbers (87, 89, 91, etc.) are a percentage of the fuel's performance measured against pure (100%) octane. Lower octane gas burns quicker than higher octane, and so require less energy to ignite.
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Can I put midgrade gas in my car?

If your car says “premium fuel recommended,” you have a choice — you can run regular, midgrade, or premium. Although the difference may be slight, these engines generally develop more power and better fuel economy on higher-octane fuel. However, you won't damage the engine or void your warranty by using regular gas.
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What happens if I accidentally put regular gas in my BMW?

The short answer is - nothing. Most BMWs can run on regular gas so you aren't at any risk of causing damage to your brother's car. When you put regular gas in a BMW as opposed to premium, the car will recognize this and may run with a little less power and less timing but all components will work properly.
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What gas is 89?

Retail gasoline stations in the United States sell three main grades of gasoline based on the octane level: Regular (the lowest octane fuel–generally 87) Midgrade (the middle range octane fuel–generally 89–90) Premium (the highest octane fuel–generally 91–94)
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Does higher octane 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.
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Can Toyota Corolla take 89 gas?

The fact is no Toyota, (Other than the Toyota Supra that has a BMW engine) uses a grade of gasoline above higher than 87.
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What happens if you put 93 gas in a 87 car?

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.
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Does premium gas clean your engine?

Nope. Regular, plus, and premium gas all come with detergents to mitigate against carbon deposits in your engine. Plus and premium don't come with special powers for cleaning out the engine. If you're interested in cleaning out your engine, you're better off taking it in for service.
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Can I put 89 gas in my BMW?

BMW states that the minimum AKI Rating is 89 in their manual so the engine should be fine with that fuel.
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Can you mix 89 93 gas?

you'll be alright. That's a lot of trouble to go through to save a couple of dollars per fill up only to end up with 90 octane gas. But yes, as was mentioned they do mix and "split the difference" to make 90 octane if you mix them in equal parts. More power to you if it works for you.
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Can you mix old gas with new gas?

Old and new gas should not be mixed for a variety of reasons, the major ones are; The old gas degrades over time it should not be added because it has already lost it's combustibility. It can cause sputtering. It might fail to fire it up.
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Is regular 87 unleaded?

In the U.S., unleaded gasoline typically has octane ratings of 87 (regular), 88–90 (midgrade), and 91–94 (premium). Gasoline with an octane rating of 85 is available in some high-elevation areas of the U.S. (more about that below).
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What gas is 87 octane?

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.
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Do cars really need premium gas?

If the sticker says, “Premium Fuel Recommended,” you should be able to use regular gas safely. But if it says “Required” or “Only,” you should use premium. Higher compression in an engine produces higher horsepower, but it may require premium gas to do it.
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