1991 Chevrolet Suburban Oil Type & Capacity
The 1991 Chevrolet Suburban oil type depends on the engine: the R1500, 5.7 K, 4L60/MD8 takes 10W-30 (5.0 quarts with filter); the R1500, 5.7 K, 700R4/MD8 takes 10W-30 (5.0 quarts with filter); the R1500, 6.2 C, 4L60/MD8 takes 10W-30 (7.0 quarts with filter); the R1500, 6.2 C, 700R4/MD8 takes 10W-30 (7.0 quarts with filter); the R1500, 6.2 J takes 10W-30 (7.0 quarts with filter); the R1500, 7.4 N takes 10W-30 (6.0 quarts with filter); the R2500, 5.7 K takes 10W-30 (5.0 quarts with filter); the R2500, 6.2 J takes 10W-30 (7.0 quarts with filter); the R2500, 7.4 N takes 10W-30 (6.0 quarts with filter); the V1500, 5.7 K, 4L60/MD8 takes 10W-30 (5.0 quarts with filter); the V1500, 5.7 K, 700R4/MD8 takes 10W-30 (5.0 quarts with filter); the V1500, 6.2 C, 4L60/MD8 takes 10W-30 (7.0 quarts with filter); the V1500, 6.2 C, 700R4/MD8 takes 10W-30 (7.0 quarts with filter); the V1500, 6.2 J takes 10W-30 (7.0 quarts with filter); the V2500, 5.7 K, 4L60/MD8 takes 10W-30 (5.0 quarts with filter); the V2500, 5.7 K, 4L80E/MT1 takes 10W-30 (5.0 quarts with filter); the V2500, 5.7 K, 700R4/MD8 takes 10W-30 (5.0 quarts with filter); the V2500, 6.2 J takes 10W-30 (7.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- R1500, 5.7 K, 4L60/MD8: 10W-30, 5.0 quarts with filter
- R1500, 5.7 K, 700R4/MD8: 10W-30, 5.0 quarts with filter
- R1500, 6.2 C, 4L60/MD8: 10W-30, 7.0 quarts with filter
- R1500, 6.2 C, 700R4/MD8: 10W-30, 7.0 quarts with filter
- R1500, 6.2 J: 10W-30, 7.0 quarts with filter
- R1500, 7.4 N: 10W-30, 6.0 quarts with filter
- R2500, 5.7 K: 10W-30, 5.0 quarts with filter
- R2500, 6.2 J: 10W-30, 7.0 quarts with filter
- R2500, 7.4 N: 10W-30, 6.0 quarts with filter
- V1500, 5.7 K, 4L60/MD8: 10W-30, 5.0 quarts with filter
- V1500, 5.7 K, 700R4/MD8: 10W-30, 5.0 quarts with filter
- V1500, 6.2 C, 4L60/MD8: 10W-30, 7.0 quarts with filter
- V1500, 6.2 C, 700R4/MD8: 10W-30, 7.0 quarts with filter
- V1500, 6.2 J: 10W-30, 7.0 quarts with filter
- V2500, 5.7 K, 4L60/MD8: 10W-30, 5.0 quarts with filter
- V2500, 5.7 K, 4L80E/MT1: 10W-30, 5.0 quarts with filter
- V2500, 5.7 K, 700R4/MD8: 10W-30, 5.0 quarts with filter
- V2500, 6.2 J: 10W-30, 7.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| R1500, 5.7 K, 4L60/MD8 — Eng VIN K | API - SAE 10W-30 | 5.00 QTS. | 4.00 QTS. | — |
| R1500, 5.7 K, 700R4/MD8 — Eng VIN K | API - SAE 10W-30 | 5.00 QTS. | 4.00 QTS. | — |
| R1500, 6.2 C, 4L60/MD8 — Eng VIN C | API - SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
| R1500, 6.2 C, 700R4/MD8 — Eng VIN C | API - SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
| R1500, 6.2 J — Eng VIN J | API - SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
| R1500, 7.4 N — Eng VIN N | API - SAE 10W-30 | 6.00 QTS. | 5.00 QTS. | — |
| R2500, 5.7 K — Eng VIN K | API - SAE 10W-30 | 5.00 QTS. | 4.00 QTS. | — |
| R2500, 6.2 J — Eng VIN J | API - SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
| R2500, 7.4 N — Eng VIN N | API - SAE 10W-30 | 6.00 QTS. | 5.00 QTS. | — |
| V1500, 5.7 K, 4L60/MD8 — Eng VIN K | API - SAE 10W-30 | 5.00 QTS. | 4.00 QTS. | — |
| V1500, 5.7 K, 700R4/MD8 — Eng VIN K | API - SAE 10W-30 | 5.00 QTS. | 4.00 QTS. | — |
| V1500, 6.2 C, 4L60/MD8 — Eng VIN C | API - SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
| V1500, 6.2 C, 700R4/MD8 — Eng VIN C | API - SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
| V1500, 6.2 J — Eng VIN J | API - SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
| V2500, 5.7 K, 4L60/MD8 — Eng VIN K | API - SAE 10W-30 | 5.00 QTS. | 4.00 QTS. | — |
| V2500, 5.7 K, 4L80E/MT1 — Eng VIN K | API - SAE 10W-30 | 5.00 QTS. | 4.00 QTS. | — |
| V2500, 5.7 K, 700R4/MD8 — Eng VIN K | API - SAE 10W-30 | 5.00 QTS. | 4.00 QTS. | — |
| V2500, 6.2 J — Eng VIN J | API - SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
Buy the right oil
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More specs & repair guides for your Suburban
1991 Chevrolet Suburban factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
18.5 quarts (17.5 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 Chevrolet Suburban take?
It depends on the engine: R1500, 5.7 K, 4L60/MD8 uses 10W-30; R1500, 5.7 K, 700R4/MD8 uses 10W-30; R1500, 6.2 C, 4L60/MD8 uses 10W-30; R1500, 6.2 C, 700R4/MD8 uses 10W-30; R1500, 6.2 J uses 10W-30; R1500, 7.4 N uses 10W-30; R2500, 5.7 K uses 10W-30; R2500, 6.2 J uses 10W-30; R2500, 7.4 N uses 10W-30; V1500, 5.7 K, 4L60/MD8 uses 10W-30; V1500, 5.7 K, 700R4/MD8 uses 10W-30; V1500, 6.2 C, 4L60/MD8 uses 10W-30; V1500, 6.2 C, 700R4/MD8 uses 10W-30; V1500, 6.2 J uses 10W-30; V2500, 5.7 K, 4L60/MD8 uses 10W-30; V2500, 5.7 K, 4L80E/MT1 uses 10W-30; V2500, 5.7 K, 700R4/MD8 uses 10W-30; V2500, 6.2 J uses 10W-30.
How much oil does a 1991 Chevrolet Suburban take?
Capacity depends on the engine: R1500, 5.7 K, 4L60/MD8 holds 5.0 quarts with filter; R1500, 5.7 K, 700R4/MD8 holds 5.0 quarts with filter; R1500, 6.2 C, 4L60/MD8 holds 7.0 quarts with filter; R1500, 6.2 C, 700R4/MD8 holds 7.0 quarts with filter; R1500, 6.2 J holds 7.0 quarts with filter; R1500, 7.4 N holds 6.0 quarts with filter; R2500, 5.7 K holds 5.0 quarts with filter; R2500, 6.2 J holds 7.0 quarts with filter; R2500, 7.4 N holds 6.0 quarts with filter; V1500, 5.7 K, 4L60/MD8 holds 5.0 quarts with filter; V1500, 5.7 K, 700R4/MD8 holds 5.0 quarts with filter; V1500, 6.2 C, 4L60/MD8 holds 7.0 quarts with filter; V1500, 6.2 C, 700R4/MD8 holds 7.0 quarts with filter; V1500, 6.2 J holds 7.0 quarts with filter; V2500, 5.7 K, 4L60/MD8 holds 5.0 quarts with filter; V2500, 5.7 K, 4L80E/MT1 holds 5.0 quarts with filter; V2500, 5.7 K, 700R4/MD8 holds 5.0 quarts with filter; V2500, 6.2 J holds 7.0 quarts with filter.
Can I use synthetic oil in my 1991 Chevrolet Suburban?
Yes. 10W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1991 Chevrolet Suburban. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.