Gen 5 DD Platform Operators Manual Chromates: Chromate additives are not approved. Chromate additives can form chromium hydroxide, commonly called "green slime." This, in turn, can result in engine damage due to poor heat transfer. Cooling systems operated with a chromate-inhibited coolant must be chemically cleaned with specially formulate cleaning agents available through authorized Detroit™ service outlets. Only use Detroit™ approved cleaning agents. Phosphate Inhibitors: Phosphate has tendency to form deposits on surfaces transferring high heat which ultimately affect cooling capabilities. Phosphate deposits on water pump seals will result in coolant leakage across seal faces.
How to Select Fuel How to Select Fuel Refer to the Lubricating, Oil, Fuel & Filters (DDC-SVC-BRO-0001) manual for the most up-to-date fuel selection information. All DD Platform engines are designed to operate on Ultra-Low Sulfur Diesel (ULSD) fuel. For optimal fuel system performance, Detroit Diesel recommends Top Tier Diesel (see figure below). Quality Use only Ultra-Low Sulfur Diesel (ULSD) fuel (15 PPM sulfur content maximum), based on ASTM Standard D 2622 test procedure. Using fuel other than ULSD will damage the fuel and aftertreatment systems. Fuel quality is an important factor in obtaining satisfactory engine performance, long engine life, and acceptable exhaust emission levels.
In general, fuels meeting the properties of ASTM Standard D 975 (grades 1-D and 2-D) have provided satisfactory performance. The fuels used must be clean, completely distilled, stable, and non-corrosive. All information subject to change without notice. 75 DDC-SVC-MAN-0217 Copyright © 2022 DETROIT DIESEL CORPORATION