With a price difference of 24.4 cents between regular and premium gasoline on national average, many people are left wondering if they can save at the pump by filling up their gas tank with ...

Dear Doctor: I own a 2005 Ford Freestar that I purchased with 11,000 miles, and it has always run fine. I recently took it on a 700-mile trip. At highway speeds the engine developed an engine ping. I ...

I have a 2015 Kia Sportage with 25,000 miles on it that I purchased new. At about 15,000 miles, I noticed a slight ping when slowly climbing hills. I tried changing gas, to no avail. Then I noticed ...

What is the knocking sound coming from my engine? What is engine knock? Why is my engine making a knocking noise? Engine knock, or pinging, occurs when a separate pocket of air-fuel mixture ignites ...

My first experience with the term “detonation” came from an Air Force training film. It opened with a shot of a B-25 (it was an old film) that was taking off, but apparently ran into trouble because ...

Some 2010-13 XK models with 5.0-liter supercharged engines may produce a pinging noise under moderate acceleration or load. According to Jaguar, the detonation typically occurs in the 1,200 rpm to ...

Does your street-driven car ping now when it didn't use to? It may be suffering from octane creep caused by deposit buildup inside the combustion chambers. New engines on the dyno and regularly ...

Q: I have a 2015 Chevy Colorado 3.6-liter V-6 with 45,000 miles that is serviced regularly and uses strictly Top Tier regular gas. When accelerating through second and third gears I regularly ...

Senior Editor Mike Allen answers readers' car questions. Q: I backed my truck in to a white steel post (right rear quarter panel). It didnt really dent or scratch the truck, but it left about a foot ...

Does your street-driven car ping now when it didn't use to? It may be suffering from octane creep caused by deposit buildup inside the combustion chambers. New engines on the dyno and regularly ...