- 1990 Factory-verified
GTZ with the LG0; the 1990 curb-mass page prints MYS; the 1991 curb-mass page still pairs the LG0 with MY5, but the 1991 power teams and engine pages name MU1
GM Heritage factory kit — 1990 Chevrolet Beretta, p.27.
MY5 Factory-verified
Documented applications
This page aggregates every documented appearance of MY5 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.