ALTERNATOR GP-CHARGING 2025748 - Caterpillar

Table 3
Service Life Before Flushing and Before Refilling    
Coolant     Service Life (1) (2) (3)    
Cat ELC    
965,606 kilometers (600,000 miles), 12,000 hours, or 6 years (4)    
Commercial coolant that meets the Caterpillar EC-1 specification    
482,803 kilometers (300,000 miles), 6000 hours, or 6 years (5)    
Cat DEAC    
321,869 kilometers (200,000 miles), 3000 hours, or 3 years (6)    
Commercial Heavy-Duty Coolant that meets "ASTM D4985" (7) or "ASTM D6210"    
241,402 kilometers (150,000 miles), 3000 hours, or 1 year (6)    
( 1 ) Use the interval that occurs first.
( 2 ) Refer to this Operation and Maintenance Manual, "Maintenance Interval Schedule" for the interval for servicing the water temperature regulator.
( 3 ) Caterpillar On-highway Engines that have excessive idle time must reduce the coolant change intervals to one-half of the kilometers (miles) that are allowed or Caterpillar On-highway Engines that have excessive idle time must base the coolant service life on the hours that are stated. Engine hours of operation are reported in the ECM (Electronic Control Module).
( 4 ) Cat ELC Extender must be added at 6000 service hours or one half of the service life of the Cat ELC.
( 5 ) An extender must be added at 3000 service hours or one half of the service life of the coolant.
( 6 ) Requires treatment with a supplemental coolant additive on a maintenance basis.
( 7 ) Requires pre-charge of a supplemental coolant additive.Note: These coolant change intervals are only possible with annual S O S Services Level 2 coolant sampling and analysis.S O S Services Coolant Analysis
Testing the engine coolant is important to ensure that the engine is protected from internal cavitation and from corrosion. The analysis also tests the ability of the coolant to protect the engine from boiling and from freezing. The S O S Services Coolant Analysis can be performed at your Caterpillar dealer. Caterpillar S O S coolant analysis is the best way to monitor the condition of your coolant and your cooling system. S O S coolant analysis is a program that is based on periodic samples.
Do not use the same vacuum sampling pump for extracting oil samples that is used for extracting coolant samples.A small residue of either type sample may remain in the pump and may cause a false positive analysis for the sample being taken.Always use a pump that is designated only for oil sampling and a pump that is designated only for coolant sampling. Failure to do so may cause a false analysis which could lead to customer and dealer concerns.
Recommended Interval for S O S Services Coolant Sample
Table 4
Recommended Interval    
Type of Coolant     Level 1     Level 2    
Cat DEAC     Every
24140 kilometers (15000 miles) (1) (2)     Yearly (2) (3)    
Cat ELC     Optional (3)     Yearly (3)    
( 1 ) This is also the recommended sampling interval for all commercial coolants that meet Cat EC-1 (Engine Coolant specification - 1)
(