1985 GMC S15 Pickup Oil Type & Capacity
The 1985 GMC S15 Pickup oil type depends on the engine: the 2D Pickup Extra Cab, 2.2 S, MB1 takes 10W-30 (5.5 quarts with filter); the 2D Pickup Extra Cab, 2.2 S, MC9 takes 10W-30 (5.5 quarts with filter); the 2D Pickup Extra Cab, 2.5 E, 4WD, Automatic takes 10W-30 (3.0 quarts with filter); the 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, MC9 takes 10W-30 (3.0 quarts with filter); the 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, ML2 takes 10W-30 (3.0 quarts with filter); the 2D Pickup Extra Cab, 2.5 E, RWD, Automatic takes 10W-30 (3.0 quarts with filter); the 2D Pickup Extra Cab, 2.5 E, RWD, Standard, MC9 takes 10W-30 (3.0 quarts with filter); the 2D Pickup Extra Cab, 2.5 E, RWD, Standard, ML3 takes 10W-30 (3.0 quarts with filter); the 2D Pickup Extra Cab, 2.8 B, 4WD, Automatic takes 5W-30 (4.0 quarts with filter); the 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MB1 takes 5W-30 (4.0 quarts with filter); the 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MC9 takes 5W-30 (4.0 quarts with filter); the 2D Pickup Extra Cab, 2.8 B, RWD, Automatic takes 5W-30 (4.0 quarts with filter); the 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MB1 takes 5W-30 (4.0 quarts with filter); the 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MC9 takes 5W-30 (4.0 quarts with filter); the 2D Pickup, 1.9 A takes 5W-30 (4.0 quarts with filter); the 2D Pickup, 2.2 S, MB1 takes 10W-30 (5.5 quarts with filter); the 2D Pickup, 2.2 S, MC9 takes 10W-30 (5.5 quarts with filter); the 2D Pickup, 2.5 E, 4WD, Automatic takes 10W-30 (3.0 quarts with filter); the 2D Pickup, 2.5 E, 4WD, Standard, MC9 takes 10W-30 (3.0 quarts with filter); the 2D Pickup, 2.5 E, 4WD, Standard, ML2 takes 10W-30 (3.0 quarts with filter); the 2D Pickup, 2.5 E, RWD, Automatic takes 10W-30 (3.0 quarts with filter); the 2D Pickup, 2.5 E, RWD, Standard, MC9 takes 10W-30 (3.0 quarts with filter); the 2D Pickup, 2.5 E, RWD, Standard, ML3 takes 10W-30 (3.0 quarts with filter); the 2D Pickup, 2.8 B, 4WD, Automatic takes 5W-30 (4.0 quarts with filter); the 2D Pickup, 2.8 B, 4WD, Standard, MB1 takes 5W-30 (4.0 quarts with filter); the 2D Pickup, 2.8 B, 4WD, Standard, MC9 takes 5W-30 (4.0 quarts with filter); the 2D Pickup, 2.8 B, RWD, Automatic takes 5W-30 (4.0 quarts with filter); the 2D Pickup, 2.8 B, RWD, Standard, MB1 takes 5W-30 (4.0 quarts with filter); the 2D Pickup, 2.8 B, RWD, Standard, MC9 takes 5W-30 (4.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 2D Pickup Extra Cab, 2.2 S, MB1: 10W-30, 5.5 quarts with filter
- 2D Pickup Extra Cab, 2.2 S, MC9: 10W-30, 5.5 quarts with filter
- 2D Pickup Extra Cab, 2.5 E, 4WD, Automatic: 10W-30, 3.0 quarts with filter
- 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, MC9: 10W-30, 3.0 quarts with filter
- 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, ML2: 10W-30, 3.0 quarts with filter
- 2D Pickup Extra Cab, 2.5 E, RWD, Automatic: 10W-30, 3.0 quarts with filter
- 2D Pickup Extra Cab, 2.5 E, RWD, Standard, MC9: 10W-30, 3.0 quarts with filter
- 2D Pickup Extra Cab, 2.5 E, RWD, Standard, ML3: 10W-30, 3.0 quarts with filter
- 2D Pickup Extra Cab, 2.8 B, 4WD, Automatic: 5W-30, 4.0 quarts with filter
- 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MB1: 5W-30, 4.0 quarts with filter
- 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MC9: 5W-30, 4.0 quarts with filter
- 2D Pickup Extra Cab, 2.8 B, RWD, Automatic: 5W-30, 4.0 quarts with filter
- 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MB1: 5W-30, 4.0 quarts with filter
- 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MC9: 5W-30, 4.0 quarts with filter
- 2D Pickup, 1.9 A: 5W-30, 4.0 quarts with filter
- 2D Pickup, 2.2 S, MB1: 10W-30, 5.5 quarts with filter
- 2D Pickup, 2.2 S, MC9: 10W-30, 5.5 quarts with filter
- 2D Pickup, 2.5 E, 4WD, Automatic: 10W-30, 3.0 quarts with filter
- 2D Pickup, 2.5 E, 4WD, Standard, MC9: 10W-30, 3.0 quarts with filter
- 2D Pickup, 2.5 E, 4WD, Standard, ML2: 10W-30, 3.0 quarts with filter
- 2D Pickup, 2.5 E, RWD, Automatic: 10W-30, 3.0 quarts with filter
- 2D Pickup, 2.5 E, RWD, Standard, MC9: 10W-30, 3.0 quarts with filter
- 2D Pickup, 2.5 E, RWD, Standard, ML3: 10W-30, 3.0 quarts with filter
- 2D Pickup, 2.8 B, 4WD, Automatic: 5W-30, 4.0 quarts with filter
- 2D Pickup, 2.8 B, 4WD, Standard, MB1: 5W-30, 4.0 quarts with filter
- 2D Pickup, 2.8 B, 4WD, Standard, MC9: 5W-30, 4.0 quarts with filter
- 2D Pickup, 2.8 B, RWD, Automatic: 5W-30, 4.0 quarts with filter
- 2D Pickup, 2.8 B, RWD, Standard, MB1: 5W-30, 4.0 quarts with filter
- 2D Pickup, 2.8 B, RWD, Standard, MC9: 5W-30, 4.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 2D Pickup Extra Cab, 2.2 S, MB1 — 2.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 5.50 QTS. | — | — |
| 2D Pickup Extra Cab, 2.2 S, MC9 — 2.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 5.50 QTS. | — | — |
| 2D Pickup Extra Cab, 2.5 E, 4WD, Automatic — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, MC9 — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, ML2 — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.5 E, RWD, Automatic — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.5 E, RWD, Standard, MC9 — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.5 E, RWD, Standard, ML3 — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.8 B, 4WD, Automatic — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MB1 — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MC9 — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.8 B, RWD, Automatic — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MB1 — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MC9 — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup, 1.9 A — 1.9L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup, 2.2 S, MB1 — 2.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 5.50 QTS. | — | — |
| 2D Pickup, 2.2 S, MC9 — 2.2L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 5.50 QTS. | — | — |
| 2D Pickup, 2.5 E, 4WD, Automatic — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup, 2.5 E, 4WD, Standard, MC9 — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup, 2.5 E, 4WD, Standard, ML2 — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup, 2.5 E, RWD, Automatic — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup, 2.5 E, RWD, Standard, MC9 — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup, 2.5 E, RWD, Standard, ML3 — 2.5L Eng | SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | 3.00 QTS. | — | — |
| 2D Pickup, 2.8 B, 4WD, Automatic — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup, 2.8 B, 4WD, Standard, MB1 — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup, 2.8 B, 4WD, Standard, MC9 — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup, 2.8 B, RWD, Automatic — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup, 2.8 B, RWD, Standard, MB1 — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
| 2D Pickup, 2.8 B, RWD, Standard, MC9 — 2.8L Eng | SAE 5W-30 (Below -20Deg.F to 100Deg.F), 10W-30 (Above 0Deg.F to over 100Deg.F), 15W-40 (10Deg.F to over 100Deg.F), 20W-20 (20Deg.F to over 100Deg.F), SAE 30 (40Deg.F to over 100Deg.F) | 4.00 QTS. | — | — |
Buy the right oil
Buy 10W-30 motor oil on AmazonBuy 5W-30 motor oil on Amazon1985 GMC S15 Pickup oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your S15 Pickup
1985 GMC S15 Pickup factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
12.0 quarts (11.35 L) — 56/44 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1985 GMC S15 Pickup take?
It depends on the engine: 2D Pickup Extra Cab, 2.2 S, MB1 uses 10W-30; 2D Pickup Extra Cab, 2.2 S, MC9 uses 10W-30; 2D Pickup Extra Cab, 2.5 E, 4WD, Automatic uses 10W-30; 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, MC9 uses 10W-30; 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, ML2 uses 10W-30; 2D Pickup Extra Cab, 2.5 E, RWD, Automatic uses 10W-30; 2D Pickup Extra Cab, 2.5 E, RWD, Standard, MC9 uses 10W-30; 2D Pickup Extra Cab, 2.5 E, RWD, Standard, ML3 uses 10W-30; 2D Pickup Extra Cab, 2.8 B, 4WD, Automatic uses 5W-30; 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MB1 uses 5W-30; 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MC9 uses 5W-30; 2D Pickup Extra Cab, 2.8 B, RWD, Automatic uses 5W-30; 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MB1 uses 5W-30; 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MC9 uses 5W-30; 2D Pickup, 1.9 A uses 5W-30; 2D Pickup, 2.2 S, MB1 uses 10W-30; 2D Pickup, 2.2 S, MC9 uses 10W-30; 2D Pickup, 2.5 E, 4WD, Automatic uses 10W-30; 2D Pickup, 2.5 E, 4WD, Standard, MC9 uses 10W-30; 2D Pickup, 2.5 E, 4WD, Standard, ML2 uses 10W-30; 2D Pickup, 2.5 E, RWD, Automatic uses 10W-30; 2D Pickup, 2.5 E, RWD, Standard, MC9 uses 10W-30; 2D Pickup, 2.5 E, RWD, Standard, ML3 uses 10W-30; 2D Pickup, 2.8 B, 4WD, Automatic uses 5W-30; 2D Pickup, 2.8 B, 4WD, Standard, MB1 uses 5W-30; 2D Pickup, 2.8 B, 4WD, Standard, MC9 uses 5W-30; 2D Pickup, 2.8 B, RWD, Automatic uses 5W-30; 2D Pickup, 2.8 B, RWD, Standard, MB1 uses 5W-30; 2D Pickup, 2.8 B, RWD, Standard, MC9 uses 5W-30.
How much oil does a 1985 GMC S15 Pickup take?
Capacity depends on the engine: 2D Pickup Extra Cab, 2.2 S, MB1 holds 5.5 quarts with filter; 2D Pickup Extra Cab, 2.2 S, MC9 holds 5.5 quarts with filter; 2D Pickup Extra Cab, 2.5 E, 4WD, Automatic holds 3.0 quarts with filter; 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, MC9 holds 3.0 quarts with filter; 2D Pickup Extra Cab, 2.5 E, 4WD, Standard, ML2 holds 3.0 quarts with filter; 2D Pickup Extra Cab, 2.5 E, RWD, Automatic holds 3.0 quarts with filter; 2D Pickup Extra Cab, 2.5 E, RWD, Standard, MC9 holds 3.0 quarts with filter; 2D Pickup Extra Cab, 2.5 E, RWD, Standard, ML3 holds 3.0 quarts with filter; 2D Pickup Extra Cab, 2.8 B, 4WD, Automatic holds 4.0 quarts with filter; 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MB1 holds 4.0 quarts with filter; 2D Pickup Extra Cab, 2.8 B, 4WD, Standard, MC9 holds 4.0 quarts with filter; 2D Pickup Extra Cab, 2.8 B, RWD, Automatic holds 4.0 quarts with filter; 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MB1 holds 4.0 quarts with filter; 2D Pickup Extra Cab, 2.8 B, RWD, Standard, MC9 holds 4.0 quarts with filter; 2D Pickup, 1.9 A holds 4.0 quarts with filter; 2D Pickup, 2.2 S, MB1 holds 5.5 quarts with filter; 2D Pickup, 2.2 S, MC9 holds 5.5 quarts with filter; 2D Pickup, 2.5 E, 4WD, Automatic holds 3.0 quarts with filter; 2D Pickup, 2.5 E, 4WD, Standard, MC9 holds 3.0 quarts with filter; 2D Pickup, 2.5 E, 4WD, Standard, ML2 holds 3.0 quarts with filter; 2D Pickup, 2.5 E, RWD, Automatic holds 3.0 quarts with filter; 2D Pickup, 2.5 E, RWD, Standard, MC9 holds 3.0 quarts with filter; 2D Pickup, 2.5 E, RWD, Standard, ML3 holds 3.0 quarts with filter; 2D Pickup, 2.8 B, 4WD, Automatic holds 4.0 quarts with filter; 2D Pickup, 2.8 B, 4WD, Standard, MB1 holds 4.0 quarts with filter; 2D Pickup, 2.8 B, 4WD, Standard, MC9 holds 4.0 quarts with filter; 2D Pickup, 2.8 B, RWD, Automatic holds 4.0 quarts with filter; 2D Pickup, 2.8 B, RWD, Standard, MB1 holds 4.0 quarts with filter; 2D Pickup, 2.8 B, RWD, Standard, MC9 holds 4.0 quarts with filter.
Can I use synthetic oil in my 1985 GMC S15 Pickup?
Yes. 10W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1985 GMC S15 Pickup. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.