The manual calls for Denso Iridium Long Life plugs to be changed at 160k km.
Cars at 320k so second swap and I noticed Denso has new TT plugs with smaller 0.4mm center electrode as opposed to 0.7mm in long life.
Previously 0.4mm center electrode is for the "performance" plugs and generally doesn't last as long.
I saw photo from here which is the TT plug after 150k miles or 240k km.https://www.rav4world.com/threads/a...5-000-miles-pic.82732/page-2#post-926475
I'm debating now if I should just leave the long life in there(first change at 160k didn't show significant wear on the original plugs) or maybe go with the new TT plugs?
Is there any good reason to get long life plugs again over TT?
TT is $4 cheaper than Long Life per plug for some reason even though it's newer. Less iridium = less cost?