Wednesday, June 19, 2013
Is There Really a Difference at the Pump?
I know, you’ve been there, done that. Deciding which gas to fill up with can be difficult; you can sometimes find yourself at the pump thinking about which fuel to fill your car up with. Whether you’re driving an SUV, compact car, or super car, each type of gas performs differently. When you arrive at the gas station you fill up on unleaded gas, with three options: octane, special additives, and ethanol content. In today’s blog, we’re discussing the several options of gas purchase for when you’re at the pump.
Octane has three options: 87, 89, and 92. Large engines perform well on 87 octane, smaller cars do well with 89, and high performance cars run perfect on 92 octane. The higher the octane rating the more compression the fuel can handle before it ignites. If your engine begins to knock, then fuel is igniting from the compression, not from the spark. Thus, damaging your engine. If this continues to occur, it’s time to buy higher-octane gas.
Special Additives are beneficial because their utilized by fuel companies to keep the inside of the engine clean. For example, Exxon uses high amounts of additives in their gas to keep your system clean. All the major gas companies use detergent additives to help keep the engine clean, so this should not really be a consideration.
The final option is ethanol content. The lower the ethanol content, the better the fuel will burn in your engine, providing a longer life for your engine. Ethanol is also good because it improves fuel economy, sometimes giving up to a 20% boost.