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Glossary of tire terminology
The tire suppliers may have additional markings, notes or warnings such as standard load, radial tubeless, etc. Tire information placard: A placard showing the OE (Original Equipment) tire si ...

The laser sensor
The upper decal describes the laser beam's classification and contains the following text: Invisible Laser radiation – Do not view directly with optical instruments (magnifiers) – Class 1M la ...

Heated oxygen sensors
The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio ...