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Feb 3, 2022 · #1 · Feb 3, 2022 (Edited) In my previous car before the Challenger, owner's manual states the car is designed to take regular unleaded fuel with an octane rating of 87 but manufacturers recommend putting 91. So I put 91. Very clear.
Jun 3, 2002 · It has high octane, but you'd have to mix a lot to get meaningful increases. Since the gas probably already has 10% alcohol in it, why not play it safe and add enough of your own to go up to 15% total [add it at a 5% extra rate]?
Feb 6, 2012 · The results of fuel in the test engine are compared to known characteristics of fuel with different mixtures of iso-octane and n-heptane. For example, fuel with the same detonation characteristics as a mixture of 90% iso-octane and 10% n-heptane would have an octane rating of 90.
May 10, 2023 · One of the key differences between 91 and 93 octane gas is their cost and availability. To better understand the differences in price and where you can get each type of fuel, let’s take a look at the table below:
- What Is An Octane Rating?
- Why Do Some Manufacturers Require Or Recommend Use of Higher Octane Gasoline?
- What Is 85 Octane, and Is It Safe to Use in My Vehicle?
- Let’s Talk: Comment Below to Talk with The Guides & Gear Editors!
An octane rating is a measurement of the fuel’s ability to resist engine pinging. In short, an octane rating is a reading of the fuel’s stability. Regular fuel typically has an 87 octane rating, mid-grade fuel typically falls between 88-90, and premium fuel is typically rated at 91-94 octane. Racing fuel typically has a higher octane rating, such a...
Vehicles that recommend or require premium fuel have slowly become more common as of late. This, in part, is due to modern cars with higher compression ratios and turbochargedengines that require higher octane.
Gasoline with an 85 octane rating was previously used for carbureted vehicles in high-elevation areas, but you should not use it in your modern vehicles, as it is not designed to do so.
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Dec 15, 2022 · The octane rating on gasoline determines how well it will run your car. We tell you how to pick the correct octane for your car and what the difference is.
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Aug 4, 2019 · That ambiguity can be expensive. Premium gas tracked at $0.59 more per gallon than regular unleaded as of this writing. In a vehicle averaging 25 mpg and traveling 15,000 miles a year, that...
