1994 Chevrolet C3500 HD Oil Type & Capacity
The 1994 Chevrolet C3500 HD oil type depends on the engine: the 5.7 K, _NA_, CNG takes 10W-30 (6.0 quarts with filter); the 5.7 K, _NA_, Gas/CNG takes 10W-30 (6.0 quarts with filter); the 5.7 K, _NA_, Gas/Propane takes 10W-30 (6.0 quarts with filter); the 5.7 K, _NA_, Propane takes 10W-30 (6.0 quarts with filter); the 5.7 K, L05, Automatic takes 10W-30 (6.0 quarts with filter); the 5.7 K, L05, Standard takes 10W-30 (6.0 quarts with filter); the 6.5 F, Automatic takes 10W-30 (7.0 quarts with filter); the 6.5 F, Standard takes 10W-30 (7.0 quarts with filter); the 7.4 N, Automatic takes 10W-30 (8.0 quarts with filter); the 7.4 N, Standard takes 10W-30 (8.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 5.7 K, _NA_, CNG: 10W-30, 6.0 quarts with filter
- 5.7 K, _NA_, Gas/CNG: 10W-30, 6.0 quarts with filter
- 5.7 K, _NA_, Gas/Propane: 10W-30, 6.0 quarts with filter
- 5.7 K, _NA_, Propane: 10W-30, 6.0 quarts with filter
- 5.7 K, L05, Automatic: 10W-30, 6.0 quarts with filter
- 5.7 K, L05, Standard: 10W-30, 6.0 quarts with filter
- 6.5 F, Automatic: 10W-30, 7.0 quarts with filter
- 6.5 F, Standard: 10W-30, 7.0 quarts with filter
- 7.4 N, Automatic: 10W-30, 8.0 quarts with filter
- 7.4 N, Standard: 10W-30, 8.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 5.7 K, _NA_, CNG — 5.7L Eng | API - 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) | 6.00 QTS. | 5.00 QTS. | — |
| 5.7 K, _NA_, Gas/CNG — 5.7L Eng | API - 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) | 6.00 QTS. | 5.00 QTS. | — |
| 5.7 K, _NA_, Gas/Propane — 5.7L Eng | API - 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) | 6.00 QTS. | 5.00 QTS. | — |
| 5.7 K, _NA_, Propane — 5.7L Eng | API - 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) | 6.00 QTS. | 5.00 QTS. | — |
| 5.7 K, L05, Automatic — 5.7L Eng | API - 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) | 6.00 QTS. | 5.00 QTS. | — |
| 5.7 K, L05, Standard — 5.7L Eng | API - 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) | 6.00 QTS. | 5.00 QTS. | — |
| 6.5 F, Automatic — 6.5L Eng | API - 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) | 7.00 QTS. | — | — |
| 6.5 F, Standard — 6.5L Eng | API - 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) | 7.00 QTS. | — | — |
| 7.4 N, Automatic — 7.4L Eng | API - 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) | 8.00 QTS. | 7.00 QTS. | — |
| 7.4 N, Standard — 7.4L Eng | API - 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) | 8.00 QTS. | 7.00 QTS. | — |
Buy the right oil
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More specs & repair guides for your C3500 HD
1994 Chevrolet C3500 HD factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
27.0 quarts (25.55 L) — 56/44 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1994 Chevrolet C3500 HD take?
It depends on the engine: 5.7 K, _NA_, CNG uses 10W-30; 5.7 K, _NA_, Gas/CNG uses 10W-30; 5.7 K, _NA_, Gas/Propane uses 10W-30; 5.7 K, _NA_, Propane uses 10W-30; 5.7 K, L05, Automatic uses 10W-30; 5.7 K, L05, Standard uses 10W-30; 6.5 F, Automatic uses 10W-30; 6.5 F, Standard uses 10W-30; 7.4 N, Automatic uses 10W-30; 7.4 N, Standard uses 10W-30.
How much oil does a 1994 Chevrolet C3500 HD take?
Capacity depends on the engine: 5.7 K, _NA_, CNG holds 6.0 quarts with filter; 5.7 K, _NA_, Gas/CNG holds 6.0 quarts with filter; 5.7 K, _NA_, Gas/Propane holds 6.0 quarts with filter; 5.7 K, _NA_, Propane holds 6.0 quarts with filter; 5.7 K, L05, Automatic holds 6.0 quarts with filter; 5.7 K, L05, Standard holds 6.0 quarts with filter; 6.5 F, Automatic holds 7.0 quarts with filter; 6.5 F, Standard holds 7.0 quarts with filter; 7.4 N, Automatic holds 8.0 quarts with filter; 7.4 N, Standard holds 8.0 quarts with filter.
Can I use synthetic oil in my 1994 Chevrolet C3500 HD?
Yes. 10W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1994 Chevrolet C3500 HD. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.