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Heavy-Duty Conventional Inhibitor 2792

Formulated for heavy-duty diesel engines.

Penray 2792 is an advanced “fully-formulated” inhibitor package featuring a low-silicate, phosphate-free formula to provide trouble-free service in trucks, buses and additional applications listed below.

Antifreeze/coolant made with glycol consistent with ASTM E1177-14 and Penray 2792 is compatible with CAT EC-1 and other specifications listed below. Penray 2792 offers easy, economical, efficient blending procedures. A concentrated formula, Penray 2792 is added to pure ethylene glycol at 2.2% volume to achieve the product specifications and benefits. Adding an additional 2% of water is optional to minimize product cost. The finished product will meet ASTM heavy-duty specifications and may also be used in diesel engines with traditional supplemental coolant additive.

Store above 50°F (10°C) to prevent gelling.

Blending Instructions: 50/50 Pre-dilute coolant contains 1.1% by volume of 2792
Concentrate Contains 2.2% by volume of 2792

Many heavy-duty applications BENEFITS



• ASTM D-6210
• ASTM D-3306
• TMC RP-323
Using and maintaining a properly formulated coolant is one of the most important aspects of engine maintenance.

Link to INH2792 [1] flyer.



   WARNING: This product can expose you to chemicals including Methanol, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.