Manufactures Proprietary Terms
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  • Autolite's spark plug change walk-through

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    • Center Electrodes
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    • Resistor Types
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    • Precious Metal Types
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    • Plug Problems
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    • Glow Plugs
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    • Oxygen Sensors
  • Signal

  • Planar

  • Air Fuel Sensor

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  • 1 Wire

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  • stoichiometric

  • air/fuel ratio

  • Cross Count

  • Lambda Sensor

  • Titania

  • Universal Oxygen Sensor

  • Zirconia

  • Wide Band Oxygen Sensor

  • 5 Wire Oxygen Sensor

  • Reading old oxygen sensors

  • Oxygen Sensor Diagnostic Testing

  • OE Identical Oxygen Sensor Installation Instructions

  • Universal O2 Sensor Installation Instructions


    • Manufacturer's Numbering System
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    • Post Release Articles
  • K&N HP Gains - 1996-2007 Lotus Elise/Exige

  • K&N HP Gains - 1996-2008 Ford Mustang GT

  • K&N HP Gains - 2004-2008 Scion xB

  • K&N HP Gains - 2005-2007 Chevy Corvette

  • K&N HP Gains - 2005-2008 Chrysler 300C

  • K&N HP Gains - 2007 Hummer H3

  • K&N HP Gains - 2007 Nissan 350Z

  • K&N HP Gains - 2007 Scion tC

  • K&N HP Gains - 2007 Shelby Ford Mustang GT 500

  • K&N HP Gains - 2007-2008 Toyota Tundra

  • K&N HP Gains - Ford F-Series Trucks

  • K&N HP Gains - GM Diesel

  • K&N HP Gains - Honda Fit Performance Add-Ons

  • K&N New Product Release - 2005-2008 Mercedes Diesel

  • K&N New Product Release - 2007 Mini Cooper S

  • K&N New Product Release - 2007-2008 Mercedes AMG

  • K&N New Product Release - 2008 Hummer H3

  • K&N New Product Release - Lexus IS220

  • K&N New Product Release - Nissan Sentra 2.5L L4

  • K&N New Product Release - 2006-2008 BMW 3-Series

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    		Yttrium oxide is a rare metal used as a key component in superconductors and television screens. Bosch uses yttrium in their oxygen sensors and long life performance spark plugs as it resists wear and oxidation, thus extending durability while not sacrificing electrical conductivity. The attached photo shows the extended life on an yttrium Bosch Super+ center electrode. Yttrium is also used on the ground electrodes of Bosch Platinum+2, Platinum+4 and PlatinumIR Fusion spark plugs to greatly extend plug life.
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