BEFORE YOU OPERATEJH Series Operation Manual 4512/05ENGINE COOLANTEngine Coolant SpecificationsNote: In the U.S., LLC is required forthe warranty to be valid.• Texaco Long Life Coolant (LLC), bothstandard and premixed, product code7997 and 7998• Havoline Extended LifeAntifreeze/Coolant, product code 7994Following the manufacturer’srecommendations, use a proper LLCwhich will not have any adverse effects onthe materials (cast iron, aluminum, copper,etc.) of the engine’s cooling system.Always use the mixing ratios specified bythe antifreeze manufacturer for thetemperature range.Coolant (Closed Cooling System)NOTICEAlways add LLC to soft water especiallywhen operating in cold weather. Never usehard water. Water should be clean andfree from sludge or particles. Without LLC,cooling performance will decrease due toscale and rust in the coolant system.Water alone may freeze and form ice; itexpands approximately 9% in volume. Usethe proper amount of coolant concentratefor the ambient temperature as specifiedby the LLC manufacturer. LLCconcentration should be a minimum of30% to a maximum of 60%. Too much LLCwill decrease the cooling efficiency.Excessive use of antifreeze also lowersthe cooling efficiency of the engine. Nevermix different types or brands of LLC, as aharmful sludge may form. Mixing differentbrands of antifreeze may cause chemicalreactions, and may make the antifreezeuseless or cause engine problems.
