What are the symptoms that you are using bad fuel for your car?

Answer by  karmas (35)

When you come to a stop light you will feel and see the engine rpm change slightly depending on your vehicle. Your engine will also have a slight pinging noise coming from the top of the engine, however if the noise is loud it is a more severe problem. Your car will have poor acceleration and possibly back fire also.

Answer by  fordguy777 (346)

A worse gas milage on the car as a whole is a sure sign. The other tell tale sign is if you tend to stall out frequently or if the car bucks frequently. Another sign could be that the car bogs out frequently on you. You can usually feel it when your driving especially if everything else is in check.

Answer by  Amber40 (24961)

Bad fuel is harder to burn so the engine will run roughly, miss, knock, and shake. Always use fresh fuel with the same or better octane rating suggested by the manufacturer. Spark plugs will indicate how well the fuel is burn by their appearance.

Answer by  tshaw2 (45)

The symptoms of using bad fuel in your car is that the car begins to misfire. It also spits, stutters, and a significant loss of horsepower. It is usually very easy to tell that you have bad fuel.

Answer by  magda (97)

whenever you use a bad fuel for your car the symptoms are very noticeable. the main symptom is that the car begins to choke. there is noticeable lost in power as well. it could lead to many different repairs. cleaning the fuel injectors, replacing the fuel filter, and also oxygen sensor