Review on Autolite Iridium XP Replacement 🔌 Spark Plug XP103 - Automotive (1 Pack) by Todd Cobb

Plugs have plugs. but now I know it's not. If you leave spark plug selection to the "cheapest" or your mechanic, you will most likely not notice a change in vehicle performance. This is my long experience. I was intrigued by a scientific journal article dealing with various "spark plug" designs in combustion system dynamics. Because of this curiosity, I was looking for the 'best' spark plug at the best price for my latest spark plug replacement. You should consider budget, mid-range, and premium forks. If you spend time tediously swapping out spark plugs, why not install "better" spark plugs? Iridium spark plugs are superior to platinum plugs simply because of iridium's position on the periodic table of elements. I've been looking at "super premium" forks, which include mini subs that can cost up to $25 each. Inexpensive mini system spark plugs offer excellent spark dynamics in the ignition cycle. But on closer inspection after checking the engine specs online. Your vehicle's OEM computer will overwhelm these benefits in the "big" equation of vehicle combustion optimization. Super Connectors require a non-OEM supercomputer to unlock connector features. A high-priced super connector is overshadowed by the OEM car's computer. So I took the middle road for my Lincoln Navigator, moving my electrodes one element to the left on the periodic table and looking for the cheapest connector in that category. I keep an eye on fuel consumption and was amazed that these spark plugs increased mileage by more than 10%. There just aren't many ways to get a true 10% increase in mileage. 5 Stars. the results exceeded my expectations. I received all 8 in one order. An odd numbered purchase issue reported by another reviewer should be addressed.