Costco Gas Station Linked to Water Contamination Claim
A New Orleans driver alleged that she received water instead of premium gasoline at a local Costco fuel center.
Updated on Oct. 1, 2026 in Auto Parts
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A vehicle owner has filed a claim against a New Orleans Costco after allegedly pumping water into her car instead of premium gasoline. The vehicle began malfunctioning the day after the fill-up, leading to a mechanic removing water from the fuel system.
Why it matters
Water contamination in a fuel tank can cause engines to run poorly or stall, leading to significant mechanical concerns for vehicle owners. Such incidents highlight the importance of fuel quality monitoring at high-volume retail stations.
A mechanic drained the fuel system after the vehicle began pulling. Costco utilizes filters to trap water and sediment, with weekly physical inspections and chemical sampling protocols in place.
The players
Ashley Webb
She is the New Orleans driver who filed a claim against the retailer regarding the fuel contamination incident.
Costco
The international membership-only warehouse club operates gas stations that conduct weekly physical inspections and chemical sampling of fuel tanks.
Louisiana Weights and Measures
This state agency accepts consumer complaints and maintains the authority to perform laboratory fuel testing to ensure regulatory compliance.
The details
Ashley Webb captured the fuel drainage process on video after her car failed to run properly. The Louisiana Weights and Measures division remains the official agency tasked with receiving consumer complaints and performing independent laboratory fuel testing.
Timeline
September 23, 2026: The woman filled her vehicle at the Costco station.
September 24, 2026: The vehicle began pulling while driving.
2018: Costco reimbursed customers for diesel contamination.
Roadmap
Fuel quality control is a critical operational standard for retailers operating private filling stations. This incident tests consumer trust in the maintenance protocols that differentiate large-scale warehouse club fueling centers from traditional commercial gas stations.
Drivers who suspect fuel contamination should contact the Louisiana Weights and Measures division to file a complaint for potential testing. Vehicle owners should also keep receipts and document any immediate mechanical issues if they notice a change in car performance after refueling.
The takeaway
Vehicle owners who experience sudden performance issues after refueling should immediately consult a mechanic and document the liquid in their tank. Keeping a record of maintenance receipts is essential for pursuing potential claims against fuel retailers if contamination is confirmed.
Further reading
For more information on vehicle maintenance and fuel quality standards, see the Auto Parts section.
Source note: This article includes information reported by Motor1.
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