I was buying spark plugs for my vehicle and noticed a much higher priced iridium plug listed. My vehicle calls for copper plugs but would the higher priced plug perform better?
Engines that use iridium plugs are designed for their use. Putting them in an engine designed for copper plugs will not show a benefit, relative to cost. [Back to top] • I was rotating my tires and when I tried to remove the wheel, one of the lug studs stripped. I questioned the shop that installed the tires (6,000 miles before) and they said I stripped the stud. What is your opinion? It is quite unlikely a lug stud could be stripped removing the nut. Fasteners are stripped by improperly threading them together or by over-torque. I would discuss it further with the service manager of the shop.
