- 1998–2001 Factory-verified
the 1998–1999 lists give row 1 AR9 buckets, row 2 AL4 buckets and row 3 AM7 or AM9
ZP8 Factory-verified
Also documented for ChevroletGMCPontiac
Documented applications
This page aggregates every documented appearance of ZP8 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.