As you go up in octane, you also go up in additive concentration, namely detergents designed to keep your injectors, valves, and piston crowns clean. Photo by Spenser Robert.Īll that being said, there’s more to fuel grades than just the octane rating.
Mini bike chopper fuel type cracked#
Just avoid high load and high-rpm riding until you can add an octane booster or fill up with the correct grade gas.ĭetonation is destructive and can quickly lead to serious engine damage like cracked piston crowns and skirts, collapsed ring lands, and crank-bearing failure. However, if you’re forced to fill up on sub-par fuel for some reason, don’t freak out. Some modern, high-performance bikes are equipped with knock sensors, but most aren’t. On the flip side, if you’re thinking of going cheap and putting regular in a bike designed to burn premium, you’re at risk of engine damage. Even then, unless your engine is knocking on 87 octane, it’s not going to make more power or run any better on 89 or 93.
Mini bike chopper fuel type mod#
The only reason you would need to upgrade your gas is if you’ve installed high compression pistons or advanced your ignition timing or done some other mod that’s going to increase combustion pressure and heat. Whatever the manufacturer recommends is what you should stick with, because that’s what your bike was designed to burn.Īnd if you’re running premium in a bike that calls for regular because you think it’ll make more power or net you more miles per gallon, you’re wasting your money. If you’re wondering what octane fuel to use in your bike, it’ll be listed on the sticker on the gas tank, or you can find it spelled out in your owner’s manual. If your bike calls for regular, then there's no need to fill up with higher octane fuel unless you've modified your engine in a way that makes detonation more likely, such as installing a high-compression piston. Whereas drinking it without getting off the couch will fill your tank, but won’t do you much good otherwise.įuel grade needs to match an engine's state of tune. It’s like drinking a protein shake: If you do it in conjunction with a kick-ass workout, it helps you build muscle. So while high-octane gas and horsepower go hand-in-hand, the premium gas isn't making more power, it’s simply allowing the engine to work harder without it getting rattled apart by detonation. At 5,000 rpm, combustion happens 40 times per second.ĭetonation is more likely to occur when the fuel/air mixture is squeezed harder, which is exactly what performance engines, with their high compression ratios, advanced ignition timing, and sky-high rev limits, do. Under normal conditions the spark plug ignites the fuel mixture and the flame front spreads evenly throughout the combustion chamber, as illustrated in the video below. To understand what detonation is and why you want to avoid it, let’s talk about the combustion process for a moment.
The higher the octane, the more resistant the fuel is to detonation. However, high-octane gas alone does not yield more power, unless it’s preventing detonation, which is also known as engine pinging or knock. I mean, it’s an easy connection to make given all the High Octane Cafes, High Octane Crossfit gyms, and other brands and products that use the “high octane” label as a way to convey potency. When it comes to the octane number, many people think it’s an indication of the gasoline’s power density, and that a higher octane gas will net more horsepower, get better mileage, or offer better throttle response. Your standard North American gas station offers regular, labeled as 87 octane, mid-grade which is typically 89, and premium which is often a 91 or 93 octane fuel (using the (R+M/2) method of averaging the motor octane rating and research octane rating methods). Which should you choose for your motorcycle, and does it make a difference? When you pull up to a gas pump, you’ve got three options: regular, mid-grade, and premium.
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