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Learning Center

What is OBD II, and Why is it Important?

On-Board Diagnostic systems are in most cars and light trucks on the road today. During the '70s and early 1980's manufacturers started using... Read More

How do I Test an Oxygen Sensor?

How do I test an oxygen sensors performance to know if it needs to be replaced? Read More

Why Do Some Bosch Oxygen Sensor Threads Appear "Burnt"?

To ensure quality, Bosch factory tests each oxygen sensor in simulated exhaust gas... Read More

How Often Should I Change My Wiper Blades?

Wipers should be changed when they no longer perform as expected, or no longer provide a... Read More

Refills vs. Wiper Blades

Can I just buy a refill or should I replace the entire wiper blade? Read More

What are the Different Champion Resistor Types?

What is the difference between Champion "Q", "R" and "X" resistor types? Read More

Heat Range Conversion Chart

Heat Range Conversion Chart Read More

Engine Displacement Conversion Chart

Engine Displacement Conversion Chart Read More

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