The correct tire pressure for your trailer tires is typically specified by the trailer manufacturer and can usually be found on a sticker or plate on the trailer itself, often located on the frame or near the hitch. It is also detailed in the owner's manual. Generally, trailer tires are designed to operate at a higher pressure than passenger vehicle tires, often ranging from 50 to 80 psi, depending on the tire's load range and size.
For Load Range C tires, the pressure is usually around 50 psi. Load Range D tires typically require about 65 psi, while Load Range E tires often need 80 psi. It's crucial to adhere to these specifications to ensure optimal performance, safety, and tire longevity. Under-inflated tires can lead to overheating and potential blowouts, while over-inflated tires may result in reduced traction and uneven wear.
Always check tire pressure when the tires are cold, as heat from driving can increase the pressure reading. Use a reliable tire pressure gauge to ensure accuracy. Regularly inspect your trailer tires for signs of wear, damage, or punctures, and adjust the pressure as needed, especially before long trips or when carrying heavy loads.
If the trailer is heavily loaded, ensure the tires are inflated to the maximum psi indicated on the tire sidewall to support the weight safely. Conversely, if the trailer is lightly loaded, you may slightly reduce the pressure, but never below the minimum recommended by the manufacturer. Always prioritize safety and performance by maintaining the correct tire pressure.