SERVICE PRODUCTS FIRE To avoid increased risk of a fuel fire, do not mix gasoline and diesel fuel. Flow improver or petroleum spirit must be mixed with diesel fuel before its flow characteristics have been adversely affected by paraffin separation. If changes have already been caused by paraffin separation, they can be corrected only by heating the entire fuel system. Do not add anything to cold-resistant winter-grade diesel fuels. The fuel's low-temperature flow characteristics could actually deteriorate with additives. Figure 28 Engine Oil Temperature Ranges Winter Coolant Antifreeze Protection Before the temperature dips below freezing, check the concentration of antifreeze in the coolant.
If necessary, increase it. Do not increase the proportion (mixing ratio) of corrosion-inhibiting antifreeze beyond 55 percent by volume (this gives the maximum antifreeze protection). Further increases in the mixing ratio would reduce the level of antifreeze protection and adversely affect the coolant's ability to dissipate heat. Low-Viscosity Engine Oil When changing the engine oil, estimate the interval before your next oil change. Choose an oil from the SAE viscosity class which corresponds to the outside temperatures anticipated during this period of operation. See Figure 28. Batteries Batteries should receive more frequent maintenance and recharging during the cold season of the year.
62 All information subject to change without notice. (Rev. 04/08) DDC-SVC-MAN-0055 04/08 Copyright © 2008 DETROIT DIESEL CORPORATION