DTFR 15B110 (formerly MB228.3) is a lubricant specification designed for use in high performance medium and heavy-duty diesel engines where advanced aftertreatment systems such as Diesel Particulate Filters (DPFs) are not fitted. These vehicles would typically align with Euro IV emissions standard and prior.

DTFR 15B110 lubricants are typically SAE 15W-40, 10W-40, 10W-30 and 20W-50 viscosity grades, based on API Group I or II base oils, with low levels of API Group III when required.

The main physical and chemical requirements for DTFR 15B110 are shown below:

Requirement	Method	Unit	Limit
HTHS viscosity at 150°C	CEC L-36-A-90	cP	≥ 3.5
Sulphated Ash	ASTM D874	%wt	> 1.0 and ≤ 2.0
Phosphorus	ASTM D5185	%wt	Rate and Report
Sulfur	ASTM D5185	%wt	Rate and Report
Evaporation loss (NOACK) at 250°C	CEC L-40-93	%	≤ 13
Total Base Number	ASTM D2896	mgKOH/g	≥ 8.0

DTFR 15B110 is usually grouped with a range of other approvals. The most frequently seen approvals claimed in conjunction with DTFR 15B110 are ACEA E7, API CI-4, MTU Type 2, Volvo VDS-3, Deutz DQC III-18, Caterpillar ECF-2 and Cummins CES 20077/20078.

For more information on DTFR 15B110 lubricants, contact your Lubrizol representative or visit Mercedes-Benz Specifications for Operating Fluids (MB BeVo).

DTFR 15B110 (Formerly MB228.3)