I couldn't believe it. Doesn't General Motors still own AC? With 50,000 miles on the odometer, I was curious on how the plugs look. After watching a couple how-to videos on removing them, I proceeded. Being a guy who tries to buy American as much as possible, I was shocked and disappointed what I found. NGKs with 'Japan' stamped on them. I immediately hitched a ride to the auto parts store. They didn't have ACs so I got Champions. I feel much better now.
Someone at Chevrolet needs a spanking.
Someone at Chevrolet needs a spanking.