Use this reference library as a starting point for checking claims. An article should link to the source that supports its specific statements, with enough context to understand what the source covers.
Primary material
Manufacturer manuals, model-specific documentation, relevant public agencies, and appropriate research can each answer different questions. Check dates, scope, methods, and applicability before drawing a conclusion.
Direct observations
Firsthand findings need a description of the task, conditions, and limitations. Clearly identify information supplied by a manufacturer or drawn from another publication.