Compare HiTEC 8799B, HiTEC 8766B, and Infineum D3451 HDDO additive packages—treat rates, density, viscosity, TBN, OEM approvals, and performance insights to guide your selection.
Introduction
Heavy-duty diesel engine (HDDO) oils rely on high‑performance additive packages to meet stringent OEM and industry specifications. Here, we compare three leading HDDO additive systems—Afton’s HiTEC 8799B and HiTEC 8766B, and Infineum’s D3451—to help formulators select the right package for their applications.
1. Additive Package Overviews
HiTEC 8799B HDDO Additive Package
Afton’s HiTEC 8799B is a versatile “cascade” package designed for both mainstream and economy HDDO grades. It delivers optimized treat‑rates, viscosity‑index improver (VII) credit, and broad base‑oil compatibility.
Typical Characteristics (8799B):
Density @ 15 °C: 0.956 g/ml
Flash Point: ≥ 135 °C
Viscosity @ 100 °C: 152 mm²/s
Total Base Number: 66 mg KOH/g
VII Credit: 20–45 % savings on VII cost.
Recommended Dosage: 16.2 % (cascade mode with HiTEC 8757B).
OEM Approvals:
European: ACEA B3, ACEA E3
API: CF‑4, CG‑4, CH‑4, CI‑4, SL
OEM: MB 228.0/1, Mack EOMplus, MAN 3275/270/271, Volvo VDS‑2/3, Renault RLD‑2/RD‑2, MTU 1.0/2.0, Cummins CES 20076/77/78, Caterpillar ECF‑1a, Deutz DCQ‑III/II‑05
HiTEC 8766B HDDO Additive Package
HiTEC 8766B is a stand‑alone package tailored for ACEA E7 performance, with no booster required for API CI‑4 or CH‑4. It offers logistic simplicity and excellent soot handling.
Typical Characteristics (8766B):
Density @ 15 °C: 0.969 g/ml
Flash Point: ≥ 135 °C
Viscosity @ 100 °C: 140 mm²/s
Total Base Number: 74 mg KOH/g
Recommended Dosage: 12.7 % in SAE 15W‑40 (ACEA E7‑12).
OEM Approvals: Volvo VDS‑2, Mack EOM+, Renault RD‑2, Cummins CES 20077/78, Caterpillar ECF‑1a, Deutz DCQ‑III/II‑05, MTU 2.0
Infineum D3451 Performance Additive Package
Infineum’s D3451 is formulated for premium diesel engine oils, offering robust CI‑4 and SL performance. It meets both North American and European OEM and industry specifications.
Performance Claims:
API SL/CI‑4/CH‑4 in SAE 15W‑40 at ~11.9 % treat rate
ACEA E7‑08 at ~11.0 % treat rate
Typical Characteristics:
Appearance: Clear
Base Number: 77 mg KOH/g
Density @ 15 °C: 960 kg/m³
Flash Point: 182 °C
Viscosity @ 100 °C: 146 mm²/s
Viscosity @ 40 °C: 2 985 mm²/s
Phosphorus: 1.08 % m/m
Sulfur: 2.65 % m/m
Zinc: 1.18 % m/m
OEM Approvals: Not individually listed; meets broad North American & European OEM specifications.
2. Side‑by‑Side Comparison Table
| Feature | HiTEC 8799B | HiTEC 8766B | Infineum D3451 |
|---|---|---|---|
| Treat Rate | 16.2 % (with 8757B) | 12.7 % (ACEA E7‑12) | ~11 – 11.9 % |
| Density @ 15 °C (g/ml) | 0.956 | 0.969 | 0.960 kg/m³ |
| Viscosity @ 100 °C | 152 mm²/s | 140 mm²/s | 146 mm²/s |
| TBN (mg KOH/g) | 66 | 74 | 77 |
| Flash Point (°C) | ≥ 135 | ≥ 135 | 182 |
| API Specs | CF‑4, CG‑4, CH‑4, CI‑4, SL | CI‑4, CH‑4 | SL, CI‑4, CH‑4 |
| ACEA Specs | B3, E3 | E7‑12 | E7‑08 |
| Key OEM Approvals | MB, Mack, MAN, Volvo, Renault, MTU, Cummins, CAT, Deutz | Volvo, Mack, Renault, Cummins, CAT, Deutz, MTU | Meets North American & European OEM specs (not itemized) |
| Special Features | VII credit; cascade design | No booster needed; soot handling | Broad CI‑4/SL coverage |
3. Which Package Has OEM Approvals?
HiTEC 8799B and 8766B both list explicit OEM approvals, making them ideal when specific manufacturer certifications are required.
Infineum D3451 does not list individual OEM approvals, only general compliance with North American and European OEM standards.
Conclusion
Choose HiTEC 8799B if you need a highly versatile cascade system with extensive OEM sign‑offs and VII savings.
Choose HiTEC 8766B for a streamlined, stand‑alone ACEA E7 solution with no booster required and strong European OEM backing.
Choose Infineum D3451 when you require broad CI‑4/SL coverage and are working with formulators who can accommodate its generic OEM compliance.