AMSOIL Heavy-Duty 10W-30 Synthetic Diesel Oil
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Formulated for Exceptional Diesel Engine Protection
AMSOIL Heavy-Duty Synthetic Diesel Oil is formulated for hard-working equipment. It is engineered to provide 4X better wear protection, giving you the edge to keep trucks and equipment operating at peak performance. It offers outstanding value and excellent protection for customers seeking an upgrade over conventional, synthetic-blend or competing synthetic diesel oils.
Key Benefits
- 4X better wear protection in third-party Detroit Diesel DD13 Scuffing testing (DFS 93K222, 10W-30 worst-case)
- Up to 66% less oil consumption than required by the API CK-4 standard (Caterpillar-1N test)
- Minimizes viscosity change and keeps soot particles suspended independently
- Improved heat and oxidation resistance compared to conventional diesel oils
- Dependable cold-temperature flow for easier startup
- Broad OEM coverage — Volvo, Mack, Cummins, Caterpillar, Detroit Diesel and more
- Capable of gasoline service API SN
- Does not void new vehicle or equipment manufacturer warranties; covered by the AMSOIL Limited Warranty
Wear, Viscosity Control, Temperature and Oil Consumption
Heavy-duty engine protection: Third-party testing shows AMSOIL Heavy-Duty Synthetic Diesel Oil delivers 4X more wear protection (Detroit Diesel DD13 Scuffing Test for specification DFS 93K222, using 10W-30 as worst-case representation) to help maximize equipment life and reduce maintenance costs and downtime.
Viscosity control: Advanced synthetic base oils and detergent/dispersant additives minimize viscosity change while keeping soot particles suspended independently, helping prevent the formation of larger, wear-causing particles.
Excels in extreme temperatures: Improved heat and oxidation resistance compared to conventional diesel oils, plus dependable cold-temperature flow for easier startup.
Minimizes oil consumption: A low rate of volatility (burn-off) provides up to 66 percent less oil consumption than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.
Technical Specifications
| Property | Value |
|---|---|
| Kinematic Viscosity @ 100°C, cSt | 12.0 |
| Kinematic Viscosity @ 40°C, cSt | 79.3 |
| Viscosity Index | 147 |
| CCS Viscosity | 5591 cP @ -25°C |
| Pour Point | -38°C (-36°F) |
| Four-Ball Wear Test, Scar, mm | 0.46 |
| NOACK Volatility, % weight loss | 4.5 |
| Total Base Number | 10.2 |
| HTHS Viscosity, cP | 3.6 |
| Sulfated Ash Content, wt. % | 1.0 |
Industry Certifications & OEM Approvals
API
- CK-4, CJ-4, CI-4+, CF
Volvo
- VDS4.5, VDS4, VDS3
Mack
- EOS-4.5, EO-O
Renault
- RLD-4, RLD-3
Cummins
- CES20086, CES20081
Caterpillar
- ECF-2, ECF-3, ECF-1-a
Detroit Diesel
- DDC 93K218, 93K215, 93K214; DFS 93K222
ACEA
- E9, E7
Mercedes-Benz
- 228.31
MAN
- 3575
MTU
- Type 2.1, II, I
JASO
- DH-2
Deutz
- DQC III-10LA
Chrysler
- MS 10902
Ford
- WSS-M2C171-F1
10W-30 Applications and Specifications
AMSOIL Heavy-Duty 10W-30 Synthetic Diesel Oil meets: API CK-4, CJ-4, CI-4+, CF; Volvo VDS4.5, VDS4, VDS3; Mack EOS-4.5, EO-O; Renault RLD-4, RLD-3; Cummins CES20086, CES20081; Caterpillar ECF-2, ECF-3, ECF-1-a; DDC 93K218, 93K215, 93K214; DFS 93K222; ACEA E9, E7; MB 228.31; MAN 3575; MTU Type 2.1, II, I; JASO DH-2; Deutz DQC III-10LA; Chrysler MS 10902; Ford WSS-M2C171-F1. Also capable of gasoline service API SN — consult owner's manual for the proper viscosity recommendation.
Pros and Cons
Pros
- 4X better wear protection in third-party Detroit Diesel DD13 Scuffing testing (DFS 93K222, 10W-30 worst-case)
- Up to 66% less oil consumption than required by the API CK-4 standard (Caterpillar-1N test)
- Minimizes viscosity change and keeps soot particles suspended independently
- Improved heat and oxidation resistance compared to conventional diesel oils
- Dependable cold-temperature flow for easier startup
- Broad OEM coverage — Volvo, Mack, Cummins, Caterpillar, Detroit Diesel and more
- Capable of gasoline service API SN
- Does not void new vehicle or equipment manufacturer warranties; covered by the AMSOIL Limited Warranty
Cons
- Premium Investment: Higher initial cost compared to conventional or "shelf-brand" synthetic oils.
- Limited Local Retail: Primarily available through authorized dealers and specialized synthetic outlets. National Synthetics is a local stocking dealer. Call 1-678-944-8816 to confirm in-stock items for same-day local pickup.
Order Through Your Independent AMSOIL Dealer
Give hard-working diesel equipment 4X wear protection. As your Independent AMSOIL Dealer, we provide expert guidance and competitive pricing on all AMSOIL products.
Independent AMSOIL Dealer #1858536
Shipping & Returns
Fast, Reliable Shipping
- Free standard ground shipping on orders of $100 ($130 in Canada) or more.
- Orders under the threshold ship for a flat $9.99 ($12.99 in Canada) freight charge.
- In-stock items typically delivered in two to three business days.
- U.S. and Canada only — no shipments to PO Boxes.
30-Day Return Policy
- Return unopened, currently marketed products within 30 days for a full refund (minus freight).
- Exchange unopened products within 90 days with no restocking fee.
- Special-order items are non-returnable.
- Returns are handled directly by AMSOIL.
Frequently Asked Questions
Third-party testing shows it delivers 4X more wear protection — based on the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222, using 10W-30 as the worst-case representation.
Yes. Its low rate of volatility provides up to 66 percent less oil consumption than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.
All viscosities are capable of gasoline service API SN. Consult your owner's manual for the proper viscosity recommendation for your engine.
It is recommended for the drain intervals stated by the original equipment manufacturer (OEM). Intervals may be extended beyond the OEM-recommended interval with oil analysis.
Customer Reviews
See all 323 reviewsKeeps engine protected
Even in South Mississippi Heat, Amsoil keeps my tractor engine cool and quiet. I run Amsoil in EVERYTHING!
Verified customer review via AMSOIL.com.
Great product.
Another great product from AMSOIL. I use AMSOIL products in all my internal combustion engines from lawnmowers to high performance outboard engines. I feel like I’m doing the best I can to protect my engines.
Verified customer review via AMSOIL.com.
Independent AMSOIL Dealer #1858536. Product information sourced from AMSOIL. Visit AMSOIL.com for the most current product details and availability.