Caterpillar ECF-3

Caterpillar ECF-3 is a lower Sulphated Ash, Phosphorus and Sulfur (SAPS) lubricant specification designed for use in high performance medium- and heavy-duty diesel engines. This specification can be used in applications where advanced aftertreatment systems such as Diesel Particulate Filters (DPFs) are fitted. Caterpillar off-highway engines that require this lubricant specification would typically align with Stage IIIB, IV and V European off-highway emissions standards and the Tier 4 Final North American emissions standard.

Caterpillar ECF-3 lubricants are typically SAE 15W-40, 10W-40, 10W-30 or 5W-30 viscosity grades and based on API Group II and/or API Group III base oils.

The main physical and chemical requirements for Caterpillar ECF-3 are shown below:

Requirement Method Unit Limit
HTHS Viscosity at 150°C ASTM D4683 cP ≥ 3.5
Sulfated Ash ASTM D874 %wt ≤ 1.0
Phosphorus ASTM D4951 %wt ≤ 0.12
Sulfur ASTM D4951 %wt ≤ 0.4
Volatility (NOACK) at 250°C ASTM 5800 % ≤ 13 or ≤ 15 for 10W-30
Total Base Number ASTM D4739 mgKOH/g Rate & Report

Caterpillar ECF-3 is usually grouped with a range of other approvals. The most frequently seen approvals claimed in conjunction with Caterpillar ECF-3 are ACEA E9, API CK-4/CJ-4, MB 228.31, Volvo VDS-4.5, MACK EOS-4.5, Renault RLD-3, MTU Type 2.1, Deutz DQC III-18 LA, Cummins CES 20086 and DFS 93K222.

For more information on Caterpillar ECF-3 lubricants, contact your Lubrizol representative.