Here are some truck maintenance no-nos—have you fallen into any of these traps?

2024 11/15

Our truck driver brother spends year after year on the road hauling cargo in his beloved vehicle. Everyone has their own car maintenance tricks, but some so-called “tips” are actually useless—and improper care can even wreck your ride. Here are a few maintenance no-nos you absolutely must remember.

 

1. Opening the Radiator Cap While the Engine is Hot

 

When adding coolant or other fluids, the engine must be completely shut off. Otherwise, you risk severe burns from splashing coolant or hot steam, which can also damage the vehicle. The correct procedure is to wait until the engine has cooled down, release the pressure, then open the cap while using protective measures like a damp towel.

 

Additionally, ensure the coolant level is between the full and low marks. If it falls below the low mark, add coolant (never water) and ensure the level does not exceed the full mark. If coolant levels drop rapidly over a short period, inspect the cooling system for leaks or visit a repair shop.

 

2. Frequent Brake Pad Replacement

 

Brake pads are consumables, and novice drivers tend to wear them out faster. However, frequent replacement isn't ideal. Excessive replacement suggests two possible issues: either the pads themselves are substandard, or the driver is operating the brakes improperly.

 

Frequent hard braking causes significant wear on brake pads. Therefore, new drivers should maintain smooth driving habits. When encountering complex road conditions, prepare in advance to minimize the need for sudden braking. This protects both your vehicle and yourself.

 

 

3. Adding Oil Without Changing It

 

Engine oil plays a crucial role in the engine, often referred to as its “lifeblood.” Typically, after reaching a certain mileage, the oil degrades and needs to be replaced. But what happens if you add oil before it degrades, even when the vehicle requires maintenance?

 

Adding fresh oil to old oil mixes degraded oil with new oil, reducing the engine's lubrication, friction reduction, and cooling capabilities. Over time, this accelerates engine wear. Therefore, regular oil changes are essential for effective engine maintenance.

 

4. Excessive Tire Pressure

 

Tire pressure significantly impacts vehicle performance. During maintenance, inspect not only tread wear but also tire pressure—both overinflation and underinflation shorten tire lifespan. Therefore, monitor tire pressure regularly during daily use.

 

The scientifically sound inflation standard should follow the manufacturer's specified pressure. Unless otherwise directed by the manufacturer, no special adjustments are needed for winter or summer. Tire pressure settings primarily consider vehicle factors like curb weight and chassis height.

 

5. Glove Safety During Maintenance

 

Many drivers wear gloves when servicing vehicles—they prevent dirt and facilitate handling cargo. As temperatures drop, gloves also offer protection against cold and frostbite. However, during vehicle maintenance, be vigilant to avoid gloves getting caught in sharp-edged components like cooling fans or belts, which could cause injury. Therefore, drivers should avoid wearing gloves when handling rotating parts and ensure sleeves and clothing are securely tucked in.

 

Keep these essential vehicle maintenance precautions firmly in mind, fellow drivers.