2018 Chevrolet Suburban 3500 HD Oil Type & Capacity: 0W-20 (6.0 quarts)
The 2018 Chevrolet Suburban 3500 HD takes 0W-20 motor oil — 6.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
0W-20 — 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| LS | API - SAE 0W-20 | 6.00 QTS. | 5.50 QTS. | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty. |
| LT | API - SAE 0W-20 | 6.00 QTS. | 5.50 QTS. | Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty. |
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More factory specs & repair guides for your Suburban 3500 HD
🛞 2018 Chevrolet Suburban 3500 HD Tire Size & Pressure →🌧️ 2018 Chevrolet Suburban 3500 HD Wiper Blade Sizes →💡 2018 Chevrolet Suburban 3500 HD Light Bulb Sizes →📖 2018 Chevrolet Suburban 3500 HD Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
16.2 quarts (15.33 L) — 50/50 mixture of DEX-COOL and clean, drinkable water. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
Frequently asked questions
What type of oil does a 2018 Chevrolet Suburban 3500 HD take?
The 2018 Chevrolet Suburban 3500 HD takes 0W-20 motor oil (API - SAE 0W-20), per the factory service manual.
What is the oil capacity of a 2018 Chevrolet Suburban 3500 HD?
The 2018 Chevrolet Suburban 3500 HD oil capacity is 6.0 quarts with a filter change, or 5.5 quarts without changing the filter.
How often should I change the oil in my 2018 Chevrolet Suburban 3500 HD?
Most 2018 Chevrolet Suburban 3500 HD owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Chevrolet recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2018 Chevrolet Suburban 3500 HD?
Yes. 0W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2018 Chevrolet Suburban 3500 HD. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.