BTR
Member
2005 RXT 4-Tec Supercharged 215HP. I've always used the OEM spark plugs (NGK DCPR8E gapped to 0.03”). But, they "go bad" on a regular basis. They are not fouled nor burned, and don't have any signs of abnormality when looking at the tips...... one of them simply goes bad. This necessitates that I change all 3 plugs. I would like to find a plug that will last longer. Suggestions for longer-lasting plugs? Please advise. Thanks.