Skip the auto shop - Our mechanics make house calls

Q: Advice on which type of gas to use on a 2009 Charger

asked by on

O9 Charger. When I first got it, I used regular gas and it ran fine. After seeing a video about fuel, I check the manual and used the top end. Car runs fine on regular. Is it okay to use it or is it bad?

It’s probably okay if the car runs perfectly fine and you are not having any problems. The way you can really tell it is to pull off the spark plug and look at it. In a normal spark plug, there is a normal burning color. If you see that it’s black, it’s running too rich and if you see it’s super bright, then it’s running too lean. But, if it is just a normal gray color, then it’s running normal and it’s not hurting anything. Keep in mind that high-test gas also costs an awful lot of money.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Gas is leaking from fuel tank

Hey there. If your fuel tank is rusted to the point of leaking fuel, then you will need to have the fuel tank replaced. As rust spreads, it will leak worse every day and when there is no fuel leaking...

Q: Leaf broke while driving

Hello! Thank you for writing in about this problem. This is a well-documented problem with this generation of Tacoma. There is an open recall for this specific problem. In order to properly resolve this issue, contact your local Toyota dealer,...

Q: Grinding noise when braking and turning left.

Hi there. The grinding noise seems to be a rotating item on your vehicle. Check the wheel bearings on the front of the vehicle and see if there is any dust around them. If there is dust, then the bearing...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.