Review on 🔥 Champion Copper Plus 570 Spark Plug - Superior Performance and Durability (1-piece) by Daniel Russell

I use them in my 300C 5.7 Hemi which has two spark plugs per cylinder. Chrysler recommends changing the spark plug every 30,000 miles and I follow that pretty closely lest I overspend on a platinum or long life spark plug. Also, I've read of people with the same engine having problems with something other than the Cooper main connector. I only drive this car in the summer so it takes 2-3 years to get 30,000 miles on it. Anyway, I usually swap them out before the 30,000 recommendation as they're so easy to swap out so I can't comment on durability. What I can say is that I have never made a single mistake, never slipped up or hesitated. and the spark plugs come out fairly clean with no unusual electrode deformation. Also, I spend less than $30 to replace a fork compared to $60-$100 or more for Platinum or Double Platinum forks. I'm pretty sure I won't get much more out of "Super" plugs than an empty wallet. If your car manufacturer recommends copper connectors, I don't think you can go wrong with this product.