True
RDW (not the book) - the real rhythm has two branches. Petrol/electric: 4 - 6 - 8 years, then annually. Diesel/gas: already after 3 years, then straight to annually — no two-yearly interim phase. VekaBest p.206 names no interval figure at all; the '4-2-1-1 for every car' figure is the trap.
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