1991 GMC Vandura Special Oil Type & Capacity
The 1991 GMC Vandura Special oil type depends on the engine: the 5.7 K takes 5W-30 (5.0 quarts with filter); the 6.2 J takes 5W-30 (7.0 quarts with filter); the 7.4 N takes 5W-30 (7.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 5.7 K: 5W-30, 5.0 quarts with filter
- 6.2 J: 5W-30, 7.0 quarts with filter
- 7.4 N: 5W-30, 7.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 5.7 K — G3500,5.7L Eng | API - SAE 5W-30 (Below -0Deg.F to Above 100Deg.F, Light Duty Emissions), (Below -60Deg.F Heavy Duty Emissions) 10W-30 (0Deg.F to Above 100Deg.F) | — | 4.00 QTS. | — |
| 5.7 K — G3500 | API - SAE 5W-30 (Below -0Deg.F to Above 100Deg.F, Light Duty Emissions), (Below -60Deg.F Heavy Duty Emissions) (10W-30 (0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| 6.2 J — G3500,6.2L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), 30 (32Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| 6.2 J — G3500 | API - SAE 5W-30 (Below -0Deg.F to Above 100Deg.F, Light Duty Emissions), (Below -60Deg.F Heavy Duty Emissions) (10W-30 (0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
| 7.4 N — G3500,7.4L Eng | API - SAE 5W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), 30 (32Deg.F to Above 100Deg.F) | 7.00 QTS. | — | — |
| 7.4 N — G3500 | API - SAE 5W-30 (Below -0Deg.F to Above 100Deg.F, Light Duty Emissions), (Below -60Deg.F Heavy Duty Emissions) (10W-30 (0Deg.F to Above 100Deg.F) | 5.00 QTS. | — | — |
Buy the right oil
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More specs & repair guides for your Vandura Special
1991 GMC Vandura Special factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
17.0 quarts (16.08 L) — 56/44 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1991 GMC Vandura Special take?
It depends on the engine: 5.7 K uses 5W-30; 6.2 J uses 5W-30; 7.4 N uses 5W-30.
How much oil does a 1991 GMC Vandura Special take?
Capacity depends on the engine: 5.7 K holds 5.0 quarts with filter; 6.2 J holds 7.0 quarts with filter; 7.4 N holds 7.0 quarts with filter.
Can I use synthetic oil in my 1991 GMC Vandura Special?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1991 GMC Vandura Special. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.