best spark plugs for 8.1l vortec
Unlike other spark plugs that can struggle with carbon buildup and pre-ignition in your 8.1L Vortec, I found that the NGK #3186 G-Power Platinum Spark Plugs TR5GP really stand out. After hands-on testing, these plugs resist fouling thanks to their platinum tip and wider heat range, which keeps your engine running smooth even under heavy … Read more