Spark Plugs
Minder 4
Six iridium plugs, Honda 12290-R70-A01. A 105,000-mile item — not a tune-up kit.
Interval
105,000 mi · Minder 4
Last done
Not logged
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Why it matters
Misfires on a VCM Odyssey feel like a transmission shudder. Fresh iridium plugs restore idle and mileage.
Shop notes
Gap is pre-set on Honda iridium plugs — do not file or re-gap.
Thread them by hand. The J35 heads are aluminum.
Minder 4 also mentions valve clearance and the timing belt. Valve lash is inspect-if-noisy. The timing belt is a major service (≈105k / 7 yr) and is not tracked here.