- 1998 Factory-verified
GM prints "(98)" after the name.
28U Factory-verified
Also described as Primary color, exterior, Navy MetallicPrimary color, exterior, Navy Blue
Also documented for BuickChevroletGMCHummerPontiac
Documented applications
- 2000 Factory-verified
GM prints "(98)"
- 1998–2000 Factory-verified
the 1998–1999 lists require D84
This page aggregates every documented appearance of 28U in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.