SERVICE PRODUCTS Non-EGR Engines added. For reasons of anticorrosion protection and to raise the boiling point, the coolant with a minimum 50% of antifreeze must remain in the cooling system all year round. API CI-4 or CH-4 oils are recommended for use in all non-EGR engines. These oils are intended for engines with open breather systems. Detroit Diesel POWER GUARD oils meet these specifications and are recommended. Regardless of mileage, replace the coolant every two years since the degree of corrosion protection gradually drops with time.
Synthetic Oils Synthetic oil may be used in MBE 900 engines, provided they are of the correct API designation and viscosity, as required for non-synthetic oil. Fully-Formulated Antifreeze Antifreeze approved for use in the MBE 900 engine is a mixture of glycol compounds (either ethylene glycol or propylene glycol), and corrosion inhibitors. Antifreeze containing glycol compounds and corrosion inhibitors is known as fully-formulated antifreeze. Synthetic oil offers improved low-temperature flow properties and high-temperature resistance to oxidation. However, it is generally more costly than non-synthetic oil.
Review carefully the product information published by the synthetic oil manufacturer. Performance additive systems often respond differently in synthetic oil. Use of synthetic oil does not change the recommended oil change service interval. Fully-formulated antifreeze has the following properties: It protects the radiator and engine from freezing. It provides protection against corrosion and cavitation for all components in the cooling system. It raises the boiling point of the coolant. This slows the rate of evaporation, avoiding coolant loss at high temperatures. Coolant Coolant is a mixture of water and antifreeze.
Under normal conditions, it is a mixture of 50 percent water and 50 percent antifreeze, but under extreme cold weather conditions, as much as 60 percent antifreeze can be 58 All information subject to change without notice. (Rev. 04/08) DDC-SVC-MAN-0055 04/08 Copyright © 2008 DETROIT DIESEL CORPORATION