so which one should i go with? ELC or ELC nitrite free? dont know that much about this stuff
any input would be great
ChevronTexaco Delo® Extended Life Coolant System, Coolant/Antifreeze
Material Notes: Features
Delo Extended Life Coolant/Antifreeze products are heavy duty engine coolants that use a patented organic corrosion inhibitor technology called carboxylates. The product line consists of Delo Extended Life Coolant/Anti-Freeze Concentrate, Delo Extended Life Prediluted 50/50 Coolant/Anti-Freeze and Delo Extender.
Delo Extended Life Coolant/Antifreezeconcentrate is ethylene glycol based and contains Chevron`s patented carboxylate technology. This product does not contain conventional inhibitors like silicates, nitrates, amines, phosphates or borates. Delo ELC concentrate can be used for initial fill or top up but it must diluted. It should be used full strength for freeze point adjustment.
Delo Extended Life Prediluted 50/50 Coolant/Antifreeze is a 50/50 mixture of Delo Extended Life Coolant/Antifreeze concentrate with deionized water for freeze protection down to -37°C and boil over protection to 129°C with a 15 lb pressure cap. Delo ELC Prediluted 50/50 is recommended for top up and can be used for initial fill.
Delo Extender should be added to Delo ELC at 500,000 miles/10,000 hours/4 years to reach a coolant service life of 1,000,000 miles/20,000 hours/8 years. The amount of Extender needed is based on the volume of the cooling system. Extender should only be added once during the service life of Delo ELC.
The patented carboxylate technology in Delo ELC can be used in on-road, off-road and stationary engine applications. Delo ELC protects all cooling system components and has proven over years of field testing and customer use to improve water pump life and improve heat transfer. The inhibitors in Delo ELC do not readily deplete and for this reason there is no need to add SCAs or test the coolant/antifreeze as is required when using conventional coolants requiring SCA additions.
In service Delo ELC is recommended for use out to 750,000 miles/15,000 hours/8 years. If even longer service intervals are desired then the addition of Delo Extender at 500,000 miles/10,000 hours/4 years will extend the service life to 1,000,000 miles/20,000 hours/8 years.
When using Delo ELC it is not recommended that supplemental coolant additives be used. If an accidental addition of SCAs should happen it will not create any operational issues. Additions of SCAs to Delo ELC increases the overall cost of maintenance and adds inhibitors that are not needed for ELC to perform at maximum levels of protection. Delo ELC products are dilution tolerant up to 25% percent with other non-Delo ELC products or water. Dilution of more then 25% will reduce the extended life properties of this product. When using Delo ELC it is recommended that the product freeze point be maintained between -12°F and -62°F. If the freeze point is higher or lower than the range specified it is an indication that water or concentrated coolant has been added to the system.
ELC is the coolant recommended and used by International for this engine. .
Coolant Flush for changing to ELC
Drain coolant by removing lower radiator hose. Drain block from plug on drivers side of the block. Remove the thermostat. Replace plug in block and put lower hose back on. Put thermostat housing back on without thermostat. Fill with distilled water. run for 5 minutes then drain as above..Fill and run 5 more minutes drain. Put in 1 gallon of Restore an top with distilled water. Drive it for an 60-90 minutes then drain. Flush 2 times with distilled water or whatever it takes to come clear. Put 2 qts of VC-9 or 1 gallon of Restore+ cost less and fill with distilled water. Drive it for about 60-90 minutes. Drain and flush after. Flush 3 more times with distilled water untill it come out clean. Replace thermostat or put in a new one. Put hose back, make sure block plug is tight. Add 3.5 gallons of ELC concentrate and top off with distilled water. Make sure to run engine for 5 minutes between flushes to circulate the water good. Have heater on set to hi while doing this to flush the heater core too.
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