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user removed · 06-10-2014, 04:47 PM

I replaced the iridium plugs in my Ranger at 130k miles. The gap was almost twice the recommendation when new, which is why I'm sure they were original. No difference in performance or economy.

regards
Mech

06-10-2014, 04:47 PM	#4 (permalink)
user removed Master EcoModder Join Date: Sep 2009 Posts: 5,927 Thanks: 877 Thanked 2,024 Times in 1,304 Posts	I replaced the iridium plugs in my Ranger at 130k miles. The gap was almost twice the recommendation when new, which is why I'm sure they were original. No difference in performance or economy. regards Mech