Protector, gas tank compound, corrosion preventive, water based, gray

Years 1998–99 Models 2 Factory citations 4

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Also documented for Buick Oldsmobile Pontiac

Documented applications

Lumina — second generation (1995–2001)

1998–1999 Factory-verified internal

The Grand Prix, Regal, Century and Intrigue lists read "corrosion protective"; the Lumina lists print "Preventive".

GM factory document — 1998 chevrolet lumina rpo code list, p.1.
GM factory document — 1999 chevrolet lumina rpo code list, p.1.

Monte Carlo — fifth generation, W-body (1995–1999)

1998–1999 Factory-verified internal

Siblings word it "corrosion protective"; this list prints "Preventive".

GM factory document — 1998 chevrolet monte carlo rpo code list, p.1.
GM factory document — 1999 chevrolet monte carlo rpo code list, p.1.

This page aggregates every documented appearance of VG5 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.