Cummins knows how to build engines that last, and their coolant recommendations can allegedly keep things running more ...

Inexpensive HOAT-type coolant, great for diesel engines. Cons. May not be ideal for non-diesel engines. Bottom Line. A reputable, inexpensive coolant that's designed for European diesel engines. 4.

Coolant is as vital as oil for your car, ... For example, OAT coolants are usually orange, yellow, red or purple. HOAT coolants are orange and yellow for the most part.

Finally, Si-OAT is a form of HOAT coolant that is purple — it's found in Mercedes-Benz, Audi, Volkswagen, and Porsche vehicles. Use the right coolant, and replace it properly.

Antifreeze plays a vital role in keeping your car’s engine in optimal condition by protecting it from heating up, freezing, ... (HOAT) coolant; it is phosphate free, ...

The IAT doesn’t last that long and needs to be changed at least every two years. This coolant was used several decades ago and is still somewhat popular today. However, many automobile owners prefer ...

Coolant is a lot more complex today, and the more you know about it, the better you can help your ... HOAT coolants are most commonly found dyed yellow or orange. ...

Properly maintained coolant systems may utilize several different antifreeze/coolant (AF/C) product technologies to adequately stay on track with maintenance and cooling intervals. From Conventional ...

A look at the fundamentals of antifreeze/coolant for heavy-duty diesel engines ... so the coolant lasts longer than IAT or HOAT AFC. OAT coolant typically is good for about 600,000 miles, ...