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Jul 10, 2023 · Find out now with the lessons learned from a practical test comparing 87, 91, and 93-octane for fuel efficiency and horsepower.
- Timothy Boyer
Aug 18, 2024 · Increasing pressure in the cylinder allows an engine to extract more mechanical energy from a given air/fuel mixture but requires higher octane fuel to keep the mixture from pre-detonating.
May 11, 2022 · “If you have gasoline that’s rated at 85 or 86 and the manufacturer suggests octane at 91 or 93, an octane booster may be just the thing. Similarly, if you own a vintage car with an...
Aug 4, 2019 · We tested higher octane fuel than manufacturers require on the Honda CR-V, BMW M5, Ford F-150, and Dodge Charger to see if it impacted acceleration or MPG.
- etingwall@hearst.com
- Print Director
Mar 8, 2022 · If you buy a car that requires 93 octane gasoline, you're going to spend 25-40 cents more per gallon at every fill-up for the life of your car. One of reasons some engines can produce a lot of power for their size is that they compress the fuel air mixture at much higher pressure.
Mar 8, 2015 · Most Canadian gas stations carry three main octanes of fuel: 87, 89 and 91/92. These ratings measure performance, and a higher number means the fuel can withstand more compression without igniting. In a standard combustion engine, air is mixed with the fuel before being compressed and then ignited by a spark plug.
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Apr 8, 2016 · Common ratings are regular gasoline at 87 octane, mid-grade at 89 octane, and premium at 91 to 93 octane rating. The octane rating is usually displayed in large black numbers on a yellow background on gasoline pumps. The correct octane rated fuel for your vehicle will improve mpg and make the car run smoother.
