Less than 15 miles after filling up with gas car sputters and turns off is it bad gas?

It's possible, but unlikely that bad gas is the sole cause of your car sputtering and turning off only 15 miles after filling up. While bad gas *could* cause problems, it usually manifests differently and over a longer period. The sudden failure suggests a more immediate mechanical issue.

Here are some more likely culprits:

* Fuel pump: A failing fuel pump might not be able to supply enough fuel, especially after a tank fill where the pump has to work harder.

* Fuel filter: A clogged fuel filter restricts fuel flow. This is more likely if the gas was *old* gas.

* Electrical issue: Problems with the fuel injectors, ignition system, or other electrical components could cause the engine to cut out.

* Other sensor problems: Faulty sensors monitoring fuel pressure, oxygen levels, or crankshaft position can cause this.

What to do:

1. Don't drive the car. Towing it is the safest option to prevent further damage.

2. Call a mechanic or roadside assistance. Describe the problem clearly.

3. If you suspect bad gas (and you have a receipt): Mention it to the mechanic, but don't rely on this as the primary cause.

While bad gas *can* cause problems, the sudden nature of your car's failure points more strongly to a mechanical or electrical problem that requires professional diagnosis.