Engine oils
Delo® 400 SDE SAE 15W-40
ISOCLEAN® Certified Lubricants
Engine oils
Delo® 400 SDE SAE 15W-40
ISOCLEAN® Certified Lubricants

An API CK-4 heavy duty engine oil specifically formulated for 2017 greenhouse gas (GHG 17) compliant diesel engines designed for lower emissions and improved fuel economy. Fully compatible with previous engines and oil categories.

Where to buy ›

See Delo Promotions

Services and support

Self services

Delo fuel saving Calculator

Delo means efficiency. Fuel economy without sacrificing engine protection. Save money, and lower GHG emissions

Delo Smart Choice Advisor

To better understand your business needs, we've created this tool to help us find the right product for you.

ISO Cleanliness Code Calculator

Particle contamination is the No. 1 cause of lubricant-related equipment failure. The calculator will help you take the necessary steps needed to redefine clean.

Pro services

ISOCLEAN® Certified Lubricants Program

Ensure your lubricants meet OEM cleanliness requirements to help minimize downtime, reduce maintenance costs, and extend equipment life.

LubeWatch Oil Analysis

Keep your equipment running better longer with LubeWatch® routine testing and analysis

Find a distributor near me