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HOMESERVICE MANUALSGMC1984SUBURBAN K2500, 5.7 M, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (SERVICING - M/T)LUBRICATIONRECOMMENDED FLUID
1984 GMC Suburban K2500, 5.7 M, Standard

Recommended Fluid

1984 GMC Suburban K2500, 5.7 M, StandardSECTION Recommended Fluid
WARNING: This page does not describe the selected car, but rather 26 other vehicles, including the 1983 GMC Vandura Special, 1983 GMC Vandura, 1983 GMC Value Van, 1983 GMC Suburban, and 1983 GMC S15 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

All "S" series trucks, 4-speed manual transmission and the New Process 833 4-Speed Overdrive transmission use Dexron II automatic transmission fluid.

Isuzu 69.5 MM 5-speed transmission and all 5-speed transaxles use 5W-30 engine oil rated SF or equivalent.

All other transmissions use 80W or 80W-90 GL-5 multipurpose gear lubricant or equivalent.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.