When it comes to fueling your car, not all gas stations are created equal. You might think any station will do, but some places can pose risks to your vehicle’s performance and longevity. Knowing which stations mechanics avoid can save you from costly repairs and headaches down the road.

You’ll learn about the types of gas stations that experts recommend steering clear of to protect your engine and wallet. Making informed choices on where to fill up is a simple step that helps keep your car running smoothly and efficiently.

Arco – known for inconsistent fuel quality and engine issues

When filling up at Arco, you might notice the lower prices right away. However, many mechanics warn that Arco’s fuel quality can be inconsistent.

Some drivers have reported engine knocking and reduced fuel efficiency after using their gasoline. While Arco meets EPA standards, it may lack certain additives found in higher-tier fuels.

If you want to avoid potential engine problems, it’s good to be cautious and consider alternatives with more consistent reviews on quality and performance, like other Top Tier options.

Learn more about Arco’s fuel quality concerns at Vehicle Freak.

Supermarket fuel stations – often lack necessary detergents

When you fill up at supermarket fuel stations, you might not get the same quality additives found at other brands. Many mechanics warn that these fuels often lack the necessary detergents to keep your engine clean.

Without these detergents, carbon buildup can increase, which may affect your car’s performance over time.

To protect your vehicle, consider alternating between premium and standard fuels or choosing stations known for added engine-cleaning ingredients. This small step helps keep your fuel system running smoothly.

For more details, see what experts say about supermarket fuels lacking key additives.

Cheap local gas stations – risk of contaminated gasoline

When you fill up at cheap local gas stations, you might save a few cents upfront. But these places sometimes have an increased risk of contaminated gasoline. Contaminated fuel can cause engine problems and costly repairs.

These stations may not always properly inspect or maintain their fuel tanks. That can lead to water or dirt mixing with the gas you pump. Choosing busy, well-kept stations reduces this risk, helping protect your vehicle’s engine.

For more about contaminated fuel risks and affected stations, check out this detailed information on gas stations affected by fuel contamination.

Unbranded budget gas stations – questionable fuel standards

When you choose unbranded budget gas stations, the fuel often lacks the proprietary additives found in major brands. While it still meets basic government requirements, the quality of additives that protect your engine might be inconsistent.

You’ll usually pay less, but sometimes that lower price means compromises in fuel stability and cleaning agents. If you want to avoid potential engine issues or reduced efficiency, it’s worth thinking twice before filling up at these stations.

Learn more about differences between branded and unbranded fuel at convenience.org.

Gas stations with poor maintenance – dirty pumps and tanks

When you stop at a gas station with dirty pumps, you risk putting contaminated fuel into your vehicle. Over time, grime and debris can build up on the equipment, causing engine problems.

Poorly maintained tanks are another issue. Rust or cracks can lead to fuel contamination without visible signs, so you might not realize it until damage occurs.

Choosing stations known for clean, regularly serviced pumps helps protect your car. Avoid places flagged for dirty fuel to keep your engine running smoothly and avoid costly repairs. For details on gas stations with dirty fuel pumps, see this report.

Stations flagged for causing carbon buildup in engines

You might not realize it, but some gas stations sell fuel that can increase carbon deposits in your engine. Brands like Arco have been linked to engine knocking and lower fuel efficiency, which can cause buildup over time.

This buildup reduces your car’s performance and fuel economy. Choosing your gas station carefully helps protect your engine. Avoiding certain brands can save you from costly damage and keep your vehicle running smoothly. Learn more about why some gas stations are risky for your engine’s health at this detailed report.

Gas brands linked to poor fuel economy and knocking

You might notice some gas brands cause your car to use more fuel than usual. This often happens because their gasoline lacks quality additives that keep your engine running smoothly.

Using lower-quality fuel can also lead to knocking sounds, which can harm your engine over time. Brands like 7-11, BP, and Safeway have been reported to cause these issues, especially when they are not Top Tier certified.

Choosing better fuel helps protect your engine and can save you money at the pump. For more details on which stations to avoid, check out this list of worst gasoline brands.