| Havoline® Extended Life Anti-Freeze/Coolant DEX-COOL®
Havoline Extended Life Anti-Freeze/Coolant DEX-COOL is recommended for use in the cooling systems of all types of automotive engines. This product meets ASTM D 3306 for automotive service and ASTM D 4985 for heavy-duty diesel service.
Havoline Extended Life Anti-Freeze/Coolant Pre-Mixed 50/50 DEX-COOL meets ASTM D 4656 for automotive pre-blend and ASTM D 5345 for heavy-duty pre blend.
Note: For optimum year round protection against freezing, boiling, and corrosion, a 50 percent Havoline Extended Life Anti-Freeze/Coolant DEX-COOL solution (1 part anti-freeze/1part water) is recommended. For maximum protection against freezing in extremely cold areas, a 60 percent solution (3 parts anti-freeze/2 parts water) can be used. Concentrations greater than 67 percent or less than 40 percent are not recommended.
Traditional phosphate and borate containing coolants exhibit high pH and reserve alkalinity (RA) when compared with Havoline Extended Life Anti-Freeze/Coolant DEX-COOL. This comparison can not be used to make conclusions about relative corrosion protection since the definition of RA is based upon the buffering curve of inhibitors that are not present in the coolant. Its unique corrosion inhibitor system is designed to protect aluminum and other system metals at lower pH levels than conventional coolants.
RA is defined as the amount, in milliliters (mL), of 0.1 normal hydrochloric acid required to reduce the pH of 10 ml of antifreeze to 5.5.
This long life coolant has low pH and RA relative to traditional coolants. The pH change profile in service is a more important performance measure than the RA level. Havoline Extended Life Anti-Freeze/Coolant DEX-COOL® shows a typical pH reduction of less than 1.5 units in 100,000-mile fleet tests compared with a pH reduction of up to 3 units for traditional coolants. The American Society for Testing Materials (ASTM) has eliminated minimum RA Level requirements in both key antifreeze specifications: ASTM D 3306 for automotive and ASTM D 4985 for heavy-duty engines. This action by the ASTM acknowledges that coolants that are not based on phosphate and borate can provide excellent corrosion protection for cooling system metals.
For optimum year round protection against freezing, boiling and corrosion, a 50 percent Havoline Extended Life Anti-Freeze/Coolant DEX-COOL solution (1 part anti-freeze/1 part water) is recommended. For maximum protection against freezing in extremely cold areas a 60 percent solution (3 parts anti-freeze/2 parts water) can be used. Concentrations greater than 67 percent or less than 50 percent are notrecommended.
Havoline Extended Life Anti-Freeze/Coolant Pre-Mixed 50/50 DEX-COOL should be used as manufactured. No dilution is recommended.
Always dispose of used coolant in accordance with local, state, and federal guidelines. Because this product is silicate free, Havoline Extended Life
Anti-Freeze/Coolant DEX-COOL® can be stored at least 8 years with no problem.
Typical test data are average values only. Minor variations which do not affect product performance are to be expected in normal manufacturing.
50 vol % q.s. aqueous solution
1:2 dilution with water
. as received 10 mL sample
. as anhydrous alkali metasilicate
The primary limiting factor in the shelf life of a coolant is silicate instability. Since silicate will eventually polymerize to silicate gel, all traditional coolants have a shelf life of about 18 months. Havoline Extended Life Anti-Freeze/Coolant DEX-COOL is silicate-free and therefore can be stored for at least 8 years without a problem, provided the integrity of the container is maintained. For information on the safe handling and use of these products, refer to their Material Safety Data Sheets. For more information and availability, call 1-866-688-8890.
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