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Table 7.
Fully Formulated Glycol Coolant Concentration Limits with TMC RP-329 Chemistry
Type A (50/50 Coolant/Water Mixture)
Boron
125 – 500 PPM
Nitrite
900 – 3200 PPM
Nitrate
200 – 1000 PPM
Silicon
50 – 150 PPM
Phosphorous
0 PPM
pH
8.0 – 11.0
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 following maximum allowable limits.
Table 8.
Satisfactory Water Limits – Make-Up Water Only
Maximum Allowable
Parts per Million
Grains per Gallon
Chlorides
40
2.5
Sulfates
100
5.8
Total Dissolved Solids
340
20
Total Hardness – Magnesium
and Calcium
170
10
NOTICE:
Do not add additional supplemental coolant additives to new, fully
formulated antifreeze or coolant. This can result in dropout and/or the
formation of deposits.
Coolant Maintenance Intervals
Check the nitrite concentration at the regular intervals listed in the following table
with a Detroit Genuine Fluid Analysis 3–Way Test Strip.
DD Platform EuroIV Operators Manual
All information subject to change without notice.
95
DDC-SVC-MAN-0175
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