Blog

5 posts 3 topics

Technical articles on maintenance, fault diagnosis and choosing the right part for trucks and buses.

When Should the Air Compressor Repair Kit Be Replaced?

Prolonged filling time, oil carry-over, and pressure drop — three main signs indicating it is time to replace the repair kit and how to measure them.

Learn why OEM number separators don't matter, why parts have multiple numbers, and why make-model verification is essential for correct fitment.

The relationship between viscosity grade, additive package, and manufacturer approval—and why 'higher quality oil' is not always the right choice.

Weep hole leaks, belt runout, and temperature fluctuations are three early warnings that protect your engine from major damage.

Systematically narrow down which circuit has a leak using a pressure drop test and step-by-step isolation.