Quick Lookups: Fluids

1989 GMC Value Van P3500, 3.9 L, Automatic, 475/M40SECTION Fluids
FLUID CAPACITIES
Fluid Type Application Standard Metric Fluid Spec Note S/H
Engine Coolant P3500 13.80 QTS. 13.05 L 56/44 mixture of Ethylene Glycol Base Antifreeze and water GM Specification 1825-M. S
Engine Oil P3500 6.00 QTS. 5.67 L SAE 5W-30 (Below -20Deg.F to 60Deg.F), 10W-30 (Above 0Deg.F to Above 100Deg.F), 15W-40 (10Deg.F to Above 100Deg.F), 20W-20 (20Deg.F to Above 100Deg.F), SAE 30 (40Deg.F to Above 100Deg.F) S
Fuel Tank P3500 40.00 GALS. 151.41 L S
RENDER: 1.0x

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When to See a Mechanic

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

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