The carbureted engine will start to smoke black smoke, too much fuel and start running erratically! Old hot rodders such as myself always carry a case with different sized main jets, and stop before the erratic behavior begins. This is where you better have knowledge of how to disassemble your carb and reassemble it after changing jets. You want less fuel and more air, then a timing light to retard your distributors spark a few degrees.
Simple eh? What does change the octane numbers in your gas is sudden stops,and sloshing around in a tank without baffles or foam blocks to keep the gas from doing the Big Slosh!! I love my car and all of the tips and tricks that are on this site are very informative, thank you. I have a Ford f 5. I have heard that gas can make a difference in your vehicle. I just thought that the gas was different in price just to tell you that there are different kinds.
I wonder if I can use premium in my car. Hope this answered your question? Regular Gas. Here are a handful of helpful facts to guide your choice at the pump: What is premium gasoline and how is it different from regular? In these engines, high octane fuel will improve performance and fuel economy. Using a lower octane fuel than required can cause the engine to run poorly and can damage the engine and emissions control system over time.
It may also void your warranty. In older vehicles, the engine can make an audible "knocking" or "pinging" sound. Many newer vehicles can adjust the spark timing to reduce knock, but engine power and fuel economy will still suffer. It depends. For most vehicles, higher octane fuel may improve performance and gas mileage and reduce carbon dioxide CO 2 emissions by a few percent during severe duty operation, such as towing a trailer or carrying heavy loads, especially in hot weather.
However, under normal driving conditions, you may get little to no benefit. If your vehicle requires midgrade or premium fuel, absolutely. If your owner's manual says your vehicle doesn't require premium but says that your vehicle will run better on higher octane fuel, it's really up to you.
The cost increase is typically higher than the fuel savings. However, lowering CO 2 emissions and decreasing petroleum usage by even a small amount may be more important than cost to some consumers. The sale of 85 octane fuel was originally allowed in high-elevation regions—where the barometric pressure is lower —because it was cheaper and because most carbureted engines tolerated it fairly well. This is not true for modern gasoline engines.
So, unless you have an older vehicle with a carbureted engine , you should use the manufacturer-recommended fuel for your vehicle, even where 85 octane fuel is available.
Ethanol has a much higher octane rating about than gasoline. Refiners usually blend ethanol with gasoline to help boost its octane rating—most gasoline in the U. Ford Motor Company. Szybist, J. SAE Int. Fuels Lubr. Stein, R. Polovina, K. Roth, M. Foster, et al. Leone, T. Most cars take regular. Others require premium. Your wallet might thank you. Regular gas is rated at 87 octane in most states, while premium gas is often rated higher at 91 or 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. On occasion, this occurrence will likely not harm your vehicle. However, if it happens frequently it may quicken the decline of your engine's performance. Engines with high compression ratios or turbochargers often require high octane fuel found in premium gas for optimal performance and fuel efficiency. However, the majority of cars on the road today are optimized to run on regular gas.
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