How often should oil changes be performed on USPS vehicles?

Performing oil changes every 3,000 to 5,000 miles is a standard practice in automotive maintenance to ensure the longevity and optimal performance of the vehicle's engine. Regular oil changes help remove contaminants that accumulate in the oil over time and prevent engine wear.

This range is based on many manufacturers’ recommendations, considering both conventional and synthetic oils, as well as the driving conditions typical for postal vehicles, which often include stop-and-go driving and short trips that can lead to more frequent oil degradation. Maintaining a schedule within this range supports the reliable functionality of USPS vehicles, promoting efficiency and reducing the likelihood of breakdowns, which is crucial for a fleet responsible for timely mail delivery.

In contrast, options suggesting longer intervals or fixed annual schedules, regardless of mileage, do not take into account the specific operational conditions and maintenance needs of USPS vehicles, which can lead to reduced engine performance and increased maintenance costs over time.