MAXSAFE Products
Heavy Duty Truck "Pre-Charged" Green Antifreeze

MAXSAFE’s Green Heavy Duty Truck Antifreeze uses Penray’s 2792 advanced
“fully charged, fully—formulated” antifreeze inhibitor package that features
a low-silicate, phosphate-free formula to provide trouble-free service
in any vehicle. Antifreeze made with virgin glycol and Penray 2792 may
be used in heavy duty trucks with wet sleeve technology as well as in any
liquid-cooled engine.
A concentrated formula, Penray 2792 is added to pure ethylene glycol at
2.2 vol% to achieve the product claims. Finished product will meet both
ASTM heavy-duty and automotive specifications and may be used in diesel
engines without a pre-charge of additional supplemental coolant additives.
(Normal SCA maintenance is required).
Understanding Heavy Duty Antifreeze
There are essentially 3 types of antifreeze:
- Automotive
- For use in automotive applications — not for heavy-duty diesel truck or “wet sleeve” applications.
- Heavy Duty
- Can be used as a base for heavy-duty diesel applications as long as the proper Supplemental Coolant Additives (SCA's) are added to the antifreeze.
- Heavy Duty antifreeze may state that it is suitable for heavy duty applications, but you need to read the fine print, as it will not adequately protect a “wet-sleeved” engine from cavitation and pitting unless the appropriate SCA's are added to the antifreeze. Be sure to read the label of the product you are using in your trucks.
- Heavy Duty Pre-charged
- “Pre-Charged” or “fully formulated” Heavy Duty antifreeze is ready for use and has the formulation (Supplemental Coolant Additives – SCA’s) to adequately protect “wet-sleeved” OEM diesel engines.
- If you have a mixed fleet, you should know that heavy-duty and pre-charged heavy-duty antifreeze is also compatible for use in automotive applications.
- All of MAXSAFE’S Heavy Duty Antifreeze is “fully formulated / pre-charged”.
Please call MAXSAFE for further information, or click here for informative articles.
MAXSAFE’s Heavy Duty Truck Antifreeze is designed to be compatible with and will provide satisfactory performance in most trucks and diesel engines, as well as in most automobiles, including (but not limited to) the following:
| ASTM D-6210 / ASTM D-4985 / ASTM D-3306 |
| Caterpillar Heavy Duty Coolant |
| Detroit Diesel / John Deere / GM 1899M |
| Peterbilt / Kenworth / Mack / GM 1825M |
| Cummins 90T8-4 / Ford / Freightliner |
| ASTM D-4656 Auto Pre-diluted |
| ASTM D-5345 Heavy Duty Pre-diluted |
| TMC RP-329 Type A / TMC RP-302 A |
For additional information, you can download the following pdf documents:
