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    Autolite XP Iridium/Spark Plug

    Vehicle Specific
    Part Number: XP3924
    In Stock
    In Stock
    Ships within 1-2 business days.
    Price: $6.99
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    Features & Benefits

    Autolite Iridium XP. The most technologically advanced plugs. With iridium-enhanced .6 mm sidewire - proprietary platinum sidewire technology provides better durability and more focused ignition for better ignitability and optimum performance.

    • Official plug of NASCAR
    • Iridium-enhanced center electrode
    • Patented, platinum sidewire technology, patented injection molded ceramic insulator
    • .6 mm sidewire design
    Product Details
    Part Number: XP3924
    Weight: 0.106 lbs
    Center Electrode Core Material: Copper
    Center Electrode Tip Material: Iridium
    Drive Size: 5/8 in
    Ground Electrode Tip Material: Platinum Tipped
    Insulator Material: Ceramic
    Insulator Type: Projected
    Package Quantity: 1
    Resistor: Yes
    Seat Style: Gasket
    Short Style: No
    Thread Size: 14
    Shipping Information: Overnight and Two Day shipping are not available for PO Box, APO/FPO/DPO or US Territory addresses.
    Rebate details: Purchase Autolite Iridium XP Enhanced Alloy Technology™ spark plugs and receive rebate by mail. Receive a $2.50 rebate on the purchase of each Iridium XP spark plug, up to $40.
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      Autolite XP Iridium/Spark Plug

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      This review is hidden because you have chosen to ignore Member 2340461. Show DetailsHide Details

      Autolite XP

      2 of 2 people found this helpful

      I am really sorry I had to write this but, These plugs are really bad. I went from get 39 - 44 mpg to 34- 36 mpg. I cant understand what Autolite did to make these plugs so bad. I had them Gapped Prefect @ 40. 26,000 miles late the gaps are 40, 55, 45, 45.they were burnt and had a sticky "glue" on them. I have used Autolite for over 35 yrs.
      I just installed Denso Iridium long life plugs and after 3 weeks, my MPG are up to 41. I would not recommend Autolite for Toyota Corrolla's.

      Pros: Cheap

      Cons: Poor gas mileage

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      Edited on 8/1/2014 by Editor

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