MBE 900 ENGINE 2007 OPERATOR'S GUIDE HOW-TO SECTION This section covers Detroit Diesel's recommendations on how to select lubricating oil, diesel fuel, and coolant and includes basic engine maintenance procedures which can be performed by the operator. NOTICE: The manufacturer's warranty applicable to MBE 900 engines provides in part that the provisions of such warranty shall not apply to any engine unit that has been subject to misuse, negligence or accident. Accordingly, malfunctions attributable to neglect or failure to follow the manufacturer's fuel or lubricating recommendations may not be within the coverage of the warranty. Figure 31 API Lubricant Symbol NOTICE:
Lubricating oil must have a sulfated ash level less than 1.0 wt %; currently referred to as CJ-4 oil Lubricant Requirements API CJ-4 oils must be used in engines meeting January 2007, and later build, exhaust emission regulations. How to Select Lubricating Oil Cold Weather Starting The selection of the proper lubricating oil is important to achieve the long and trouble-free service which Detroit Diesel engines are designed to provide. The proper lubricating oil for model year 2007 MBE 900 engines is selected based on SAE viscosity grade and API (American Petroleum Institute) service designation.
At ambient temperatures below –20°C (–4°F) when sufficient starter speed cannot be achieved with SAE 15W-40 oils, the use of 5W-XX oils and 10W-XX oils (XX =30 or 40) is allowed to improve starting. Only oils licensed to display the API symbol should be used. See Figure 31. All information subject to change without notice. (Rev. 04/08) 87 DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION