GEAR-PLANETARY 7G2118 - Caterpillar

Coolant Specifications
Use a mixture of water, ethylene glycol (antifreeze) and cooling system conditioner. Pure, undiluted antifreeze will freeze at - 23°C (- 10°F).Do not use Caterpillar liquid cooling system conditioner or coolant conditioner elements with Dowtherm 209 Full - Fill coolant. Follow the instructions provided with the Dowtherm 209 Full - Fill coolant.
Coolant mixtures in excess of 50% antifreeze should not be used unless temperatures below -34°C (-30°F) are expected. Increase to 60% antifreeze in this case but as the outside are temperatures start to be consistently above 0°C (32 °F), switch back to the 50/50 mixture.Antifreeze concentrations in excess of 63 % provide less rather than more freeze protection.A good practice to follow after operating an engine is to return the engine speed to LOW IDLE for 5 minutes before shutting the engine down. This reduces the surface temperature of the prechambers, heads and liners minimizing localized boiling at these areas. This will also reduce the plating effect of the compounds in the coolant.Refer to "Know Your Cooling System," form SEBD 0518, for more detailed specifications.Water
Acceptable water for use in the ethylene glycol and water mixture is shown in the chart below: Antifreeze
Use the correct amount of Caterpillar antifreeze ethylene glycol mixed with water, to provide freeze protection to the lowest expected outside temperature.Conditioner
Always add Caterpillar liquid cooling system conditioner or a coolant conditioner element to water.Never use water only.Excess coolant conditioner (greater than the recommended 6% inital fill) together with concentrations of antifreeze greater than 65% cause a mud - like deposit to form and may result in radiator tube blockage and overheating.
Use Caterpillar liquid cooling system conditioner or a coolant conditioner element. This will provide a 3% to 6% concentration of conditioner in the cooling system to help prevent corrosion.Conditioner can be purchased from your Caterpillar dealer.Fuel Specifications and Information
Types of Fuel
Diesel engines have the ability to burn a wide variety of fuels. These fuels are divided into two general groups, preferred and permissible.The preferred fuels provide maximum engine service life and performance. They are distillate fuels. They are commonly called diesel fuel, furnace oil, gas oil or kerosene.The permissible fuels are crude oils or blended fuels. Use of these fuels can result in higher maintenance costs and reduced engine service life.Refer to "Fuels for Caterpillar Diesel Engines," form SEHS 7067, for a detailed summary of preferred and permissible fuels and their specifications.Refer to SAEJ 313 Diesel Fuels for information about better quality fuels, such as ignition quality, gravity/density, viscosity, cloud point, sulfur content, etc.Fuel Sulfur Content
The percentage of sulfur in the fuel will affect the engine oil recommendations (see "Engine Oils" under "Lubricant Specifications").Fuel sulfur is chemically changed during combustion to form sulfuric acid. The acid chemically attacks metal surfaces and causes corrosive wear. Higher engine oil TBN (total base number) values are essential to minimize corrosive wear.Periodically request fuel sulfur content information from your fuel supplier. Fuel sulfur content can change with each bulk delivery.Fuel Cetane Requirement
The minimum fuel cetane number recommended for