Could mixing gasoline from different gas stations cause a car to fail a smog test?

Question

Could mixing gasoline from different gas stations cause a car to fail a smog test?

Answer 1

No, if your car failed a smog inspection they should tell you what it was that made your car fail. Gas is gas as long as you didn't put diesel in a gasoline car

Answer 2

Unlikely.

Answer 3

nope wouldnt have much to do with it failing... tune up with new plugs new air and fuel filters and a bottle of fuel treatmnent

Answer 4

No. The only difference between the gas at different stations in one area is their own additives.  Chances are the gasoline it self all come from the same refinery.  

Answer 5

No.  The smog test is to test your emissions, and if your car fails it has something to do with your exhaust system. Catalytic converters need replacing every so often... mufflers crack...

From e-how.com:

If your car fails, your mechanic must diagnose what repairs will be necessary to get your car into test-passable condition. Make sure to get a copy of your mechanic's assessment.

Take that assessment to the DMV. If you have failed, the DMV will issue you a temporary registration and assign you a date by which the car must be repaired and pass the test.