#Best hoat coolant for car free
“This is because the nitrite free coolants listed above incorporate corrosion inhibitor technologies that protect the cooling systems of heavy-duty cooling systems without the need to add and replenish nitrite,” he said. That said, Sean Wheatley, senior brand manager for Peak Commercial & Industrial, said that despite the desire of fleet maintenance technicians to test for the presence of nitrite, there are absolutely no concerns at all with using an OAT-nitrite free coolant as a top off with any cooling system. While you might not have control over what gets added to the truck when it’s out on the road, these steps will help you mitigate your coolant contamination risk. Also be sure your techs are thoroughly trained in the proper coolant procedures. To combat confusion, make sure that your coolants are properly marked and clearly labeled. Also, if a system was running a NOAT and someone added OAT, the nitrite level would be diluted and possibly compromise cavitation protection, explained Mike Tourville, marketing director for Evans Cooling. Hybrid organic acid technology (HOAT) is not compatible with OAT or NOAT coolants. It’s important to keep an eye on what coolant is being added to your trucks. “Surge tank labels are also essential to identify the correct and recommended coolant for use in the vehicle.”
#Best hoat coolant for car drivers
“The best way to combat contamination is to provide education and training to drivers and technicians on the importance of using the correct coolant and to avoid mixing different types of coolants,” said Fred Alverson, principal engineer, coolants, Shell Global Solutions. But where did it come from? The biggest causes of contamination are typically due to top-off/make-up with foreign coolants on the road and/or repair or maintenance work on the engine or cooling system resulting in contamination. When coolant turns brown, it’s a tell tale sign of contamination. Although TMC has established recommended colors for varying types of coolants in RP-351, not all manufacturers follow the color guidelines, according to Dilley. One important note is to not rely solely on the coolant color to indicate the type of chemistry (IAT, HOAT, OAT, NOAT) used in the coolant.
There are resources available that can help fleet managers with questions: OEMs engine manufacturers coolant manufacturers testing labs, industry organizations such as ATA, TMC, NARSA, SAE, etc. Confusion sets in and you end up answering the question, “What coolant goes in what truck?” The simple solution to that question, if you don’t know what type of coolant you run, is to ask. It gets even more complicated if fleets have more than one type of fluid. It is important that the fleet purchase their coolants from manufacturers that clearly and accurately label their products appropriately.” It is often not clear by looking at a fluid color or reading the label. Colin Dilley, Ph.D., vice president of technology for Prestone Products Corp., explains: “Part of the problem with following these recommendations/ procedures is knowing which coolants in the market is OAT or NOAT.
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