Useful diesel guidance, without made-up authority

Our articles are published by Modern Diesel. We do not attach a technician's name, credentials, or approval unless that person actually reviewed the article and agreed to be identified.

What we verify

Model-year specifications, regulations, fluid standards, and product announcements should trace back to a manufacturer, government agency, or recognized standards body. When a claim is based on day-to-day shop experience instead, we label it as guidance rather than a universal rule.

Maintenance intervals are vehicle-specific

There is no honest universal oil, filter, transmission, or inspection interval for every diesel truck. The correct starting point is the maintenance schedule for the exact vehicle and engine. Mileage, engine hours, idle time, load, environment, and duty cycle can shorten that interval.

Publication dates and update dates mean different things

The publication date records when an article first appeared. An updated date is added only when the article has been materially corrected or expanded; it is not changed merely to make old content look new.

Diagnosis requires the actual truck

Symptoms can narrow a problem, but a web article cannot diagnose a vehicle. Codes, measurements, service information, configuration, and operating history matter. Safety warnings and the manufacturer's instructions take priority over general online guidance.

Corrections

If you find a factual error, contact us through the contact page with the article title and the claim in question. We will check it against the applicable service information or primary source and correct it when warranted.