A/C Refrigerant

for 1990 GMC Suburban 7.4L V8 · 4WD

Fluid Type

R-12

Notes

With rear A/C (dual system): 64 oz total. Front-only systems use 48 oz; dual front/rear systems use 64 oz total Always verify against the underhood charge label when legible — charge weight is a fill-to spec, not an estimate.

Other fluid systems on this vehicle

Automatic Transmission

12 qt

Automatic Transmission

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.

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