Keeping your Autocar truck running smoothly starts with proper maintenance, especially engine oil management. Using the right engine oil type and ensuring the correct oil capacity are essential to protect your engine from wear, reduce downtime, and maximize lifespan.
In this comprehensive guide, we present the Autocar Engine Oil Capacity Chart for all popular models.
Autocar Engine Oil Capacity Chart
| Autocar Model | Engine Type | Year | Oil Capacity (Quarts) |
|---|---|---|---|
| Autocar ACX | Cummins ISX15 | 2016–2025 | 42 quarts |
| Autocar ACX | Cummins L9 | 2017–2025 | 24 quarts |
| Autocar ACTT | Cummins B6.7 | 2015–2025 | 15 quarts |
| Autocar DC-64R | Cummins X12 | 2020–2025 | 38 quarts |
| Autocar DC-64P | Cummins X12 | 2021–2025 | 38 quarts |
| Autocar DC-64D | Cummins X15 | 2021–2025 | 42 quarts |
| Autocar DK64 | Cummins M11 | 2005–2010 | 40 quarts |
| Autocar DK Series | Detroit Diesel Series 60 | 2000–2015 | 38–40 quarts |
| Autocar WX Series | Cummins ISL9 | 2010–2016 | 24 quarts |
| Autocar WX64 | Cummins ISM | 2005–2012 | 40 quarts |
| Autocar Xpeditor WX64 | Cummins ISM | 2005–2012 | 40 quarts |
| Autocar Xpeditor WXLL | Mack E7 | 2000–2005 | 38–40 quarts |
| Autocar XPEDITOR ACX | Cummins L9 | 2018–2025 | 24 quarts |
| Autocar ACTT EV | Electric Motor | 2022–2025 | N/A |
| Autocar XSpotter | Cummins QSB6.7 | 2010–2025 | 15–16 quarts |
| Autocar Xpeditor WXR | Cummins ISL | 2003–2009 | 24 quarts |
| Autocar DC-64F (Mixer) | Cummins X12 | 2022–2025 | 38 quarts |
| Autocar XPEDITOR WX | Volvo VE D12 | 2000–2005 | 38–40 quarts |
| Autocar WXLL | Detroit Diesel 8V92TA | 1998–2004 | 38 quarts |
| Autocar DC-75T | Cummins NH220 | 1970s–1980s | 36 quarts |
| Autocar U-Series | Cummins NTC-350 | 1980s–1990s | 40 quarts |
| Autocar ACL64 | Cummins N14 | 1990s | 40–42 quarts |
| Autocar A7564T | Cummins ISM | 2000–2005 | 40 quarts |
| Autocar A64B | Detroit Diesel 6V71 | 1980s | 30–32 quarts |
| Autocar XPEDITOR ACMD | Cummins L9 | 2020–2025 | 24 quarts |
| Autocar Xpeditor WX | Cummins ISB6.7 | 2008–2015 | 15–16 quarts |
| Autocar DC-64M | Detroit DD13 | 2020–2025 | 40–42 quarts |
| Autocar XSpotter Hybrid | Cummins B6.7 | 2015–2025 | 15 quarts |
| Autocar ACX Low Entry | Cummins ISX12 | 2018–2025 | 38 quarts |
| Autocar DC-88 | Caterpillar C13 | 2005–2012 | 36–38 quarts |
| Autocar Xpert | Cummins L9 | 2021–2025 | 24 quarts |
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Recommended Oil Change Intervals
For Autocar trucks using Cummins engines, follow these standard oil change intervals:
- Severe Duty (refuse, stop-and-go): Every 15,000 miles or 500 hours
- Light Duty (long-haul): Up to 25,000 miles or 1,000 hours
- Idle-heavy cycles (terminal tractors): Every 250–400 hours
Use OEM-approved oil filters and quality synthetic or semi-synthetic oils as per Cummins or Detroit Diesel recommendations.
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Best Engine Oils for Autocar Trucks
Choosing the right oil viscosity and brand is essential. Here are some common picks for Autocar models:
- SAE 15W-40: Most common for heavy-duty diesel (Cummins ISX, X12, X15)
- SAE 10W-30: Suitable for modern engines like the Cummins L9 and B6.7 under light-duty operations
- API CK-4 / FA-4 certified oils**: Ensure low-emission compliance and high thermal resistance
- Synthetic options (e.g., Mobil Delvac 1, Shell Rotella T6): For longer drain intervals and extreme weather
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Autocar Truck Oil Maintenance Tips
- Monitor Oil Quality – Use dipsticks and onboard diagnostics to track oil condition. Look for discoloration or metal shavings.
- Keep a Log – Record every oil change with date, mileage, and filter used.
- Use OEM Parts – Stick to OEM filters and seals to prevent leaks and maintain warranty.
- Warm Up the Engine Before Changing Oil – This helps in better oil drainage and sediment removal.
- Dispose of Used Oil Responsibly – Always recycle or use certified disposal services.
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FAQs
Can I overfill engine oil slightly in my Autocar truck?
No. Overfilling can cause foaming, crankshaft drag, and poor lubrication. Always follow the manufacturer’s capacity.
What happens if I use the wrong viscosity?
The wrong viscosity can lead to insufficient lubrication, poor cold-start performance, or oil breakdown in high temperatures.
How do I identify the right Autocar engine model?
Use the engine plate, VIN decoder, or consult your dealer. It’s often stamped on the engine block or found in the owner’s manual.
Final Thoughts
Whether you’re driving a powerful Autocar DC-64D for heavy-duty hauling or managing a fleet of refuse-ready ACX units, regular oil changes with the right oil capacity are critical for performance and engine longevity. This Autocar Engine Oil Capacity Chart ensures you’re filling up just the right amount, nothing more, nothing less.
