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Colorado Drivers Face Surge in Fuel-Related Vehicle Problems

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  Published in Automotive and Transportation on Friday, January 9th 2026 at 14:05 GMT by CBS News

DENVER, Colorado - January 9th, 2026 - Colorado drivers are experiencing a growing number of vehicle problems linked to contaminated gasoline, prompting warnings from mechanics across the state. Repair shops are reporting a significant surge in vehicles presenting with symptoms like engine misfires, starting difficulties, and drastically reduced fuel efficiency, all pointing towards the presence of water in the fuel system.

The problem isn't isolated to a single region; mechanics from Denver to Aurora and beyond are observing the trend. Chris Baughman, owner of Baughman Automotive in Aurora, confirmed the increase, stating, "We've seen a significant jump in cars coming in with these issues. It consistently leads back to water contamination in the fuel tank."

The Dangers of Water in Fuel

Water in gasoline is a serious issue, going beyond mere inconvenience. It doesn't mix with gasoline, sinking to the bottom of the tank. This can lead to a cascade of problems. Firstly, it causes corrosion within the fuel tank and fuel lines. This corrosion can release damaging particles into the fuel system. Secondly, water can severely damage the fuel pump, a vital component responsible for delivering fuel to the engine. A failing fuel pump can lead to complete engine stall. Worst case scenario, continued operation with water-contaminated fuel can cause irreversible engine damage, requiring costly repairs or even engine replacement.

Experts suspect the increased contamination stems from a combination of factors. Fluctuations in temperature, particularly recent cycles of freezing and thawing, are likely playing a role. Condensation can form inside fuel tanks, especially in older vehicles with less effective seals. Some speculate that recent changes in fuel delivery practices or storage facility maintenance may also be contributing factors, though official investigations haven't yet confirmed this. The Colorado Department of Revenue's Division of Oil and Gas is monitoring the situation but has yet to issue a public advisory.

What Drivers Should Do

If you suspect your vehicle may have been affected by contaminated fuel, mechanics urge drivers to take immediate action. "If you notice your car struggling to start, running rough, or experiencing a sudden drop in gas mileage, don't ignore it," Baughman emphasized. "And do not continue driving the vehicle. That could exacerbate the problem and lead to more extensive damage."

Here's a breakdown of recommended steps:

• Stop Driving: Immediately cease operation of the vehicle to prevent further damage.
• Professional Diagnosis: Take your vehicle to a qualified mechanic for a proper assessment.
• Fuel Tank Drainage: The primary solution involves completely draining the fuel tank, removing the contaminated gasoline and any accumulated water.
• Fuel Filter Replacement: The fuel filter, designed to prevent contaminants from reaching the engine, likely needs to be replaced as it may be clogged with debris or saturated with water.
• Fuel Line Flushing: Flushing the fuel lines removes any remaining water or contaminants from the system.
• Fresh Fuel: Refilling the tank with fresh, clean gasoline is the final step.

DIY vs. Professional Repair

While some mechanically inclined drivers may attempt these repairs themselves, mechanics strongly advise caution. Working with fuel systems can be dangerous, and improper handling could lead to fires or explosions. Additionally, accurately diagnosing the extent of the contamination and ensuring the entire system is thoroughly cleaned requires specialized tools and knowledge. If you're uncomfortable performing these repairs, it's best to entrust the job to a certified mechanic.

Mechanics are bracing for continued influx of affected vehicles in the coming weeks. Drivers are encouraged to be vigilant about their vehicle's performance and seek professional help at the first sign of trouble.