

Video
VIDEO: Analyzing Spark Plug Colors
If the spark plugs have a matte black or grey appearance, it could be carbon fouling. This video is sponsored...
If the spark plugs have a matte black or grey appearance, it could be carbon fouling. This video is sponsored...
If you can’t determine if it is carbon or oil fouling, smell the plug. This video is sponsored by Autolite.
Most modern engines put the spark plug in a deep well between the camshafts. This video is sponsored by Autolite.
Do you know the difference between detonation and pre-ignition? This video is sponsored by Autolite.
Make sure to inspect the old spark plugs and boots before you install the new ones. This video is sponsored...
What sets a part a professional technician from an amateur? This video is sponsored by Autolite.
Anti-seize can alter the tightening torque up to 20%, increasing the risk of breakage. This video is sponsored by Autolite.
A "burn line" can reveal what's going on under the hood. This video is sponsored by Autolite.
Installing a spark plug with the engine hot can change the torque specification. This video is sponsored by Autolite.
Do the stains on a spark plug indicate imminent engine failure? This ASE G1 test prep video is sponsored by...