Costco does not sell spark plugs, but I had noticed that many of their cars use NGK-branded spark plugs in their vehicles. In fact, all of the engines tested were equipped with NGK-branded spark plugs.
For this reason, I wondered if these NGK-branded spark plugs could be the source of some mystery fuel economy improvement in these vehicles. To find out, I purchased four NGK-branded spark plugs for testing purposes.
Costco has a great selection of auto and truck accessories that will fit any budget. If you want to travel across the icy landscapes of Alaska or the dusty sands of Mexico, Costco has the vehicle and truck accessories you need to make your dream a reality.