Water Requirements; Coolants Not Recommended; All Antifreezes And Coolants Containing; Phosphate - Detroit Diesel MBE 900 Operator's Manual

Water Requirements —
Distilled, reverse osmosis-purified, or
de-ionized water which eliminates the
adverse effects of minerals in tap water
is preferred. High levels of dissolved
chlorides, sulfates, magnesium, and
calcium in some tap water causes scale
deposits and/or corrosion resulting
in water pump failures and poor heat
transfer, leading to overheating. If tap
water is used, the mineral content in
the water must be below the maximum
allowable limits listed in Table 15.
NOTICE:
Do not add additional SCA to
new, fully formulated antifreeze or
coolant. This can result in dropout
and/or the formation of deposits.

Coolants Not Recommended

The following coolants are not
recommended for use in Detroit Diesel
engines.
Chlorides
Sulfates
Total Dissolved Solids
Total Hardness –
Magnesium and Calcium
Table 15 Satisfactory Water Limits – Make-Up Water Only
All information subject to change without notice. (Rev. 04/08)
DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION
MBE 900 ENGINE 2007 OPERATOR'S GUIDE
All Antifreezes And Coolants
Containing Phosphate — These
coolants are not recommended. Drop
out, overheating and water pump seal
failures can result from the use of
coolant or inhibitor packages based on

phosphate.

Automotive Type Coolants —
These coolants generally contain high
levels of phosphate and silicate, offer
no liner pitting protection, and are
not suitable for use in Detroit Diesel
engines.
Methyl Alcohol-Based
Antifreeze — This must not be
used because of its effect on the
non-metallic components of the
cooling system and its low boiling
point.
Maximum Allowable
Parts per Million
40
100
340
170
Grains per Gallon
2.5
5.8
20
10
107