Radiator Caps

When performing maintenance on your truck be sure to test the performance of the radiator cap. If the cap will not hold the correct pressure on the cooling system the coolant will boil at 212 degrees when the engine is under load. Since the manufacturers have engineered the engines to operate close to this temperature to improve fuel economy it doesn't take much to push the temperature past the boiling point. When the coolant boils the dca protecting the engine from coolant bubbles is destroyed and turns to a brown rusty residue. With the protection provided by the dca diminished, the liners are susceptible to pitting which leads to very expensive engine damage.

This important maintenance tip comes to you free from Hollon Oil Company. We want to be your oil supplier.