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Denso ZXE27HBR8 is an Iridium plug. On my prev Camry the change interval on the Iridium plugs was 120k miles. When I pulled them at 110k I saw no difference between what I pulled and the new ones. The gap on the used ones was 0.032 instead of new at 0.031. I put the new ones in since I got the old ones out, but it made no difference whatsoever. Biggest waste of time ever, especially since the bank closest to the firewall was a PITA to remove.
Anyone have ideas why Toyota/Subaru wants us to replace these Iridium plugs at 60k?
Come to think of it, looking at the first section of the shop manual posted in another thread, the service intervals for all services seems compressed. Are they figuring everyone will drive the piss out of these cars?
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