Does 91 octane give more power?
The 91-octane gas should, they think, provide improved fuel economy and power. In fact, octane has nothing to do with energy content or quality – it’s a measurement of the gasoline’s ability to resist engine knock. Higher octane denotes greater knock control.
Does 91 octane make your car faster?
The main difference with premium is its octane rating — 91 or higher compared with 87 for regular octane. The higher octane of premium gas won’t make your car faster; in fact, the opposite is possible because higher-octane fuel technically has less energy than lower-octane fuel.
Can I put 93 in 91 car?
Premium gas 90-93 is completely okay to put in a standard vehicle. Car experts say there is no risk of damage to a standard car using premium fuel.
What kind of Octane does premium gasoline have?
Our premium fuels typically have pump octanes of 91–93. Regulars are 87 octane; midgrades, 89. (Why a midgrade? We’ll get to this in a moment.)
Why do some cars have higher octane than others?
There’s logic involving “legacy vehicles,” older high-mileage machinery designed for regular. Even in these days of unleaded fuel, other combustion byproducts can cause deposits in the chamber that may increase octane appetite just a bit.
Why does premium gasoline have lower mpg than regular gasoline?
The latter might be qualified by a statement along the lines of “lower octane may yield reduced performance or inferior mpg.”. The reason for this has nothing to do with energy content. In fact, depending on its blending, a premium fuel may actually contain less energy per unit volume than regular.
How much Octane does a barrel of gasoline have?
Refineries are optimized for particular inputs and specialized products; the newer facilities, rather more adaptable. On average, a 42-gal. barrel of crude can yield about 19.5 gal. of gasoline, about 46 percent. Premium gasolines get their enhanced octane in a variety of ways. Aromatic hydrocarbons inherently have higher octane.