To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.
I've already reviewed this once, but here goes again....the plugs are fine; however, I ordered 8, got 7 (which doesn't work well)...then another much later. In the process of trying to find an 8th plug I came to realize that the local Reilly auto part store sells them for half the price that I purchased them for on Amazon...so, I returned them and got a credit.