NB6 ✓ Factory-verified

Oldsmobile · Regular Production Option

Emission system, California, Tier 1

Years 1998 Models 4 Factory citations 4

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Also described as Emissions system, California and Massachusetts, Tier 1

Also documented for BuickCadillacChevroletGMCPontiac

Documented applications

Aurora — G-body (1995–1999) →

• 1998 ✓ Factory-verified internal

  the list prints Tier1

  ⛭ GM factory document — 1998 oldsmobile aurora rpo code list, p.1.

Bravada — GMT330 (1996–2001) →

• 1998 ✓ Factory-verified internal
  ⛭ GM factory document — 1998 oldsmobile bravada rpo code list, p.1.

Cutlass — N-body (1997–1999) →

• 1998 ✓ Factory-verified internal
  ⛭ GM factory document — 1998 oldsmobile cutlass rpo code list, p.1.

Eighty Eight (LSS) — H-body (1992–1999) →

• 1998 ✓ Factory-verified internal
  ⛭ GM factory document — 1998 oldsmobile eighty eight rpo code list, p.1.

This page aggregates every documented appearance of NB6 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.