CONTROLS - Instrument Cluster damage, do not let the pointer exceed maximum governed speed. (See your Engine Operation and Maintenance Manual for rpm recommendations.) (99°C), except for certain special engines. Check your engine manual to be sure. Related tasks WARNING Fuel Level The Fuel gauge indicates the total (approximate) amount of fuel in the fuel tank. Diesel fuel in the presence of an igni- tion source could cause an explosion. A mixture of gasoline or alcohol with diesel fuel increases this risk of explo- sion. Do not remove a fuel tank cap near an open flame. Use only the fuel and/or additives recommended for your engine.
Failure to comply may re- sult in death, personal injury, equip- ment or property damage. Optimal RPM Indicator Information about the optimal fuel economy indicator. 3 The tachometer will illuminate a small green light just below the numbers of the gauge. This is to indicate the engine speed for optimal fuel economy. Engine - Coolant Temperature The water temperature gauge shows the temperature of the engine coolant. In addition to indicating empty and full, the gauge(s) also indicate the fuel level in graduated increments. When the fuel level for the tank is below 1/4 full, a red warning light in the gauge will come on.
CAUTION Use only Ultra Low Sulfur Diesel (ULSD) Fuel, as recommended by en- gine manufacturers. If you need further information on fuel specifications, con- sult the Engine Operation and Mainte- nance Manual. WARNING Do not carry additional fuel containers in your vehicle. Fuel containers, either full or empty, may leak, explode, and cause or feed a fire. Do not carry extra fuel containers. Even empty ones are dangerous. Failure to comply may re- sult in death or personal injury. Under normal operating conditions the water temperature gauge should register between 165° and 205°F (74° and 90°C). Under certain conditions, somewhat higher temperatures may be acceptable.
But the maximum allowable temperature is 210°F Y53-6047-2HEN (03/18) 63