LIQUI MOLY Special Tec AA SAE 10W-30 Diesel is a fully synthetic, low-friction motor oil for modern Asian and American diesel engines, including heavy-duty trucks with diesel particulate filters and turbochargers. Its broad heavy-duty approval coverage supports extended drain intervals and emissions-system durability. Sold as a case of four 5-liter jugs.
Specifications
| Product Line | Special Tec AA Diesel |
| Viscosity (SAE) | 10W-30 |
| Type | Fully synthetic (diesel, heavy-duty) |
| Approvals | ACEA E7/E9; API CK-4; Ford WSS-M2C 171-F1 |
| Also Suitable | JASO DH-2; Cummins CES 20086; Mack EOS-4.5; Volvo VDS-4.5; MB 228.31 |
| Size | 5L (4 Pack) |
| Part Number | 20440 |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
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