Many drivers hold on to misconceptions about gasoline that can affect vehicle performance and fuel efficiency. Here are ten common myths that persist in the public mindset, despite evidence to the contrary.

Myth 1: Premium Gas is Always Better

Many believe that using higher-octane gasoline improves performance. However, most vehicles are designed to run on regular unleaded fuel. According to manufacturers, using premium gas in these cars offers no benefits and only increases fuel costs.

Myth 2: Filling Up at Night is Cheaper

Some drivers think that filling up at night saves money due to cooler temperatures. However, gas prices are determined by market conditions and do not fluctuate based on the time of day. The temperature does not significantly impact the price of fuel.

Myth 3: Gasoline Expires Quickly

Many believe that gasoline goes bad after just a few weeks. While gasoline can degrade over time, it typically remains usable for up to six months when stored properly. Adding a fuel stabilizer can extend its life even longer.

Myth 4: Ethanol is Harmful to Engines

Some drivers worry that ethanol-blended fuels can damage engines. However, the National Highway Traffic Safety Administration (NHTSA) states that ethanol is safe for use in most modern vehicles. It helps reduce emissions and is a renewable resource.

Myth 5: Higher Prices Mean Better Quality

Consumers often assume that higher-priced gasoline is of better quality. In reality, fuel quality is regulated and does not vary significantly between brands. The primary factors affecting price are supply and demand, not quality.

Myth 6: Topping Off the Tank is Good

Many drivers think topping off their gas tanks is beneficial. In fact, this practice can lead to fuel spills and damage to the evaporative emissions system. It’s best to stop filling once the nozzle clicks off automatically.

Myth 7: You Should Use Your Car’s Fuel Gauge

Some believe that running the tank close to empty is okay. However, this practice can harm the fuel pump and reduce its lifespan. Keeping the tank at least a quarter full is recommended to ensure proper fuel pump function.

Myth 8: Premium Fuel Improves Fuel Economy

Drivers often assume that premium fuel will improve fuel economy. However, studies show that most vehicles do not see any increase in miles per gallon when using higher-octane fuel. Stick to the manufacturer’s recommended fuel type.

Myth 9: Gasoline Can Be Stored Safely for Years

While gasoline can last for several months, storing it for years can lead to degradation. Gasoline can lose its combustibility and effectiveness over time. For long-term storage, consider using a stabilizer and store in a cool, dark place.

Myth 10: Frequent Fill-Ups Waste Fuel

Some believe that filling up the tank frequently wastes fuel. However, keeping the tank full helps reduce condensation and keeps the fuel system clean. It can actually lead to better fuel efficiency over time.

Stay Informed

Understanding these myths can help drivers make better choices and save money at the pump. Always consult your vehicle’s manufacturer guidelines and stay informed about fuel regulations to maintain optimal vehicle performance.