Delphi planar technology covers older, conical design sensors; Smart design consolidates SKUs without using long wires Delphi is a global OE manufacturer for oxygen sensor and all oxygen sensors are built to Delphi's OE standards Patented protective sensor coating helps prevent debris Validated for all fuel types, including ethanol blends like E85; OE tested to 150,000 miles, plus 2,000 hours severe thermal testing Delphi products purchased through, from, or on Amazon do not quality for Delphi’s standard LIMITED warranty. When purchased through, from, or on Amazon, any warranty on this product is offered by and is the sole responsibility of the seller identified on the shipment details of your order. Please review all warranties carefully and contact the identified seller for all warranty details and claims.