SERIES 60 ON-HIGHWAY ENGINE OPERATOR'S GUIDE Detroit Diesel markets a OAT- inhibited ethylene glycol coolant, DDC Power Cool Plus, which contains all the required additives. If a non-DDC OAT antifreeze is used, it must conform to TMC 338 specification. Do not add extender to new OAT antifreeze or coolant. should be mixed at 7.5% – 10% by volume with water. For a list of Power Cool products, refer to section SPECIFICATIONS in this guide. Traditional SCA ( Power Cool 3000) can also be used to protect the engine. Power Cool 3000 concentration limits are listed in Table 18.
Water Only + SCA or Water Only + OAT Inhibitor In warm climates a coolant based on water with corrosion inhibitors is approved for use. Water-only systems need to be treated with the proper dosage of corrosion inhibitors. Detroit Diesel-approved SCAs or OAT corrosion inhibitors must be added to the water to provide required corrosion and cavitation erosion protection. OAT inhibitors such as Power Cool Plus 6000 are available for water-only systems. Inhibitor NOTE: Do not use Power Trac 3–Way Test Strips to test OAT coolant. POWER COOL ® 3000 SCA inhibitors should be mixed at 5% by volume with water. This is 1 quart per 5 gallons of water.
These additions can be made by adding liquid SCAs available in a variety of sizes. Coolant filters are also available for different cooling system capacities. These filters release the proper amount of SCA at initial fill. Table 18 Power Cool 3000 Concentration Limits (5% Power Cool 3000/ 95% Water) All information subject to change without notice. 95 DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION Power Cool 3000 Coolant Concentration Limits Boron 125 – 500 PPM Nitrite 900 – 3200 PPM Nitrate 0 – 1000 PPM Silicon 50 – 250 PPM Phosphorous 0 PPM pH 8.0 – 11.0