A Quick Guide to Using the Right Gasoline Grade

A Quick Guide to Using the Right Gasoline Grade

What are the Different Types of Octane Ratings?

The capacity of a fuel to resist knocking or “pinging” during combustion caused due to an air-fuel mixture that detonates prematurely within your engine is calculated by its octane rating. The Octane ratings in the US are 87 (Regular), 89-90 (Mid-Grade), and 91-94 (Premium). This rating is displayed on the pump in large black numbers. Generally, the higher the octane numbers, the greater the fuel’s resistance to pinging during the combustion process.

Understanding Different Octane Grades

Always use the octane recommended by the manufacturer for your vehicle. Not all vehicles require the same octane. Some may require Premium, while others can do it with Regular. Most vehicles are designed to run on 87 octanes but depending on the engine. Some may require a higher grade. For engines with a higher combustion rate, higher octane fuels are typically recommended.

Here are a few things to keep in mind when choosing octane at the pump:

  • Don’t use a lower grade than outlined in the user manual
  • Use a higher grade than the recommended grade
  • Consider the cost while opting for a gasoline grade

Regular, premium, and high-octane gasoline grades contain detergents, which can keep your engine clean.

How Does Octane Grade Affect My Car?

When burned in a conventional (spark-ignition internal combustion) engine, the higher the octane grade, the less likely it is to ‘knock’ (explosion caused by early combustion in the combustion chamber). The percentage of iso-octane in a combustible mixture (containing iso-octane and normal-heptane) whose ‘anti-knocking properties match those of the gas being tested is denoted by the octane number. High octane numbers were attained in older automobiles by adding lead tetraethyl to the gas (‘leaded gas,’ a contaminant that contributes to lead poisoning). A similar effect is achieved in newer vehicles by increasing turbulence in the combustion chamber and/or adding aromatic hydrocarbons (such as xylenes) and oxygenates to the ‘unleaded gas’).

Is There a Difference between Various Gas Brands?

The contents of the additives are the main difference between different gasoline brands. In 2004, some major car manufacturing companies were dissatisfied due to the number of deposits in their engines. Therefore, they collaborated to create new gasoline standards. These standards are stricter than those set by the federal Environmental Protection Agency, giving them the name “Top Tier” gas. Antioxidants oxygenate, and corrosion inhibitors are included in the improved additive package.

How to Know Your Car’s Gasoline Requirements?

Fill the tank, reset the trip odometer. Next, burn through the tank, and then refill and divide the number of miles driven by the number of gallons it takes to refill. Your MPG, or miles per gallon, is the end result. Determine which type of gasoline provides the optimum performance and efficiency.

Using the right octane grade for your vehicle is essential. For all your auto insurance needs, contact our professionals at American Premier Insurance today!