1985 Chevrolet Blazer Oil Type & Capacity
The 1985 Chevrolet Blazer oil type depends on the engine: the 5.0 H, Automatic takes 10W-30 (5.0 quarts with filter); the 5.0 H, Standard, MY6 takes 10W-30 (5.0 quarts with filter); the 5.0 H, Standard, SM465/M20 takes 10W-30 (5.0 quarts with filter); the 5.7 L takes 10W-30 (5.0 quarts with filter); the 6.2 C takes 10W-30 (7.0 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 5.0 H, Automatic: 10W-30, 5.0 quarts with filter
- 5.0 H, Standard, MY6: 10W-30, 5.0 quarts with filter
- 5.0 H, Standard, SM465/M20: 10W-30, 5.0 quarts with filter
- 5.7 L: 10W-30, 5.0 quarts with filter
- 6.2 C: 10W-30, 7.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 5.0 H, Automatic — Eng VIN H | SAE 10W-30 Energy Conserving Engine | 5.00 QTS. | 4.00 QTS. | — |
| 5.0 H, Standard, MY6 — Eng VIN H | SAE 10W-30 Energy Conserving Engine | 5.00 QTS. | 4.00 QTS. | — |
| 5.0 H, Standard, SM465/M20 — Eng VIN H | SAE 10W-30 Energy Conserving Engine | 5.00 QTS. | 4.00 QTS. | — |
| 5.7 L — Eng VIN L | SAE 10W-30 Energy Conserving Engine | 5.00 QTS. | 4.00 QTS. | — |
| 6.2 C — Eng VIN C | SAE 10W-30 or 15W-40 | 7.00 QTS. | — | — |
Buy the right oil
Buy 10W-30 motor oil on Amazon1985 Chevrolet Blazer oil filter on AmazonAs an Amazon Associate we earn from qualifying purchases made through these links.
More specs & repair guides for your Blazer
1985 Chevrolet Blazer factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
18.0 quarts (17.03 L) — 50/50 mixture of Ethylene Glycol Base Antifreeze and water. GM Specification 1825-M.
Frequently asked questions
What type of oil does a 1985 Chevrolet Blazer take?
It depends on the engine: 5.0 H, Automatic uses 10W-30; 5.0 H, Standard, MY6 uses 10W-30; 5.0 H, Standard, SM465/M20 uses 10W-30; 5.7 L uses 10W-30; 6.2 C uses 10W-30.
How much oil does a 1985 Chevrolet Blazer take?
Capacity depends on the engine: 5.0 H, Automatic holds 5.0 quarts with filter; 5.0 H, Standard, MY6 holds 5.0 quarts with filter; 5.0 H, Standard, SM465/M20 holds 5.0 quarts with filter; 5.7 L holds 5.0 quarts with filter; 6.2 C holds 7.0 quarts with filter.
Can I use synthetic oil in my 1985 Chevrolet Blazer?
Yes. 10W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 1985 Chevrolet Blazer. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.