Premium DiamondFIRE Electrode Automotive Spark Plug
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E3 Premium DiamondFIRE Electrode Automotive Spark Plug

Part No. E3.53 Warranty Details  

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E3 Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new E3 spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines.

Product Features:
  • E3's DiamondFire edge to edge electrode provides maximum performance with increased efficiency and a faster more complete burn
  • Smoother Acceleration & Idle - The faster flame initiated by the E3 spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
  • Energy - Power output improved by 6% on average in the typical operating ranges
  • Efficiency - E3 "diamond shaped" side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and longer flame kernel
  • Emissions - E3 provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
  • E3 Spark Plugs are pre-gapped at the factory to meet O.E. requirements
  • E3 Automotive spark plugs are warranted to be free of defects in material and workmanship for a limited 5 years or 100,000 miles from the date of purchase. This warranty does not cover plugs installed in any modified engine or used in any racing, aircraft, or commercial application. Spark plugs damaged by abuse, accidents, or improper installation or applications are not cover by the warranty.
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Electrode Core Material:Copper
Electrode Tip Material:Nickle
Insulator Type:Ceramic
Reach:0.690 in
Resistor:Yes
Seat Type:Tapered
Shorty Spark Plug:No
Thread Diameter:14 mm
Tip Configuration:Nickle
Type:Automotive
Wrench Diameter:0.813 in

REVIEW SNAPSHOT®

by PowerReviews
E3Premium DiamondFIRE Electrode Automotive Spark Plug
 
2.8

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (3)

46%

of respondents would recommend this to a friend.

Pros

  • Easy to install (8)
  • Increases power (5)
  • Durable (4)
  • Improves engine efficiency (4)

Cons

  • No improvement in performance (4)

Best Uses

  • Everyday driving (8)
  • Performance driving (4)
  • Replacement (3)
    • Car & Truck:
    • Auto enthusiast (4), Mechanic (3)
    • Reviewer Profile:
    • Mechanic (5), Auto enthusiast (4)

Most Liked Positive Review

 

2003 Ford Mustang Cobra S/C

Mustang Cobra is a daily driver.
You can feel the difference in the acceleration of the car throughout the rpm

Mustang Cobra is a daily driver.
You can feel the difference in the acceleration of the car throughout the rpm

VS

Most Liked Negative Review

 

Great until 1 failed and caused me problems

Installed and had no problems for 25,000 miles. Then one came apart on me(when I was 150 miles from home at 1:00 in the morning in a snow storm). The ceramic...Read complete review

Installed and had no problems for 25,000 miles. Then one came apart on me(when I was 150 miles from home at 1:00 in the morning in a snow storm). The ceramic came loose from the main base and I had no options but to drive it home that way. This caused the ceramic to beat the coil to death and loosen the base beating about half of the threads out of the head. I replaced the plug and got the new to tighten in the remaining threads. Don't!!! drive your vehicle when the plug falls apart. The ceramic and base both looked ok they just wouldn't go back together. I suspect the ceramic hammered the hole in the base closed a little.

Reviewed by 13 customers

Displaying reviews 1-10

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2.0

Great until 1 failed and caused me problems

By 

from Fremont Mi

About Me Mechanic

Pros

    Cons

    • No Improvement In Performance

    Best Uses

    • Everyday Driving

    Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

    Installed and had no problems for 25,000 miles. Then one came apart on me(when I was 150 miles from home at 1:00 in the morning in a snow storm). The ceramic came loose from the main base and I had no options but to drive it home that way. This caused the ceramic to beat the coil to death and loosen the base beating about half of the threads out of the head. I replaced the plug and got the new to tighten in the remaining threads. Don't!!! drive your vehicle when the plug falls apart. The ceramic and base both looked ok they just wouldn't go back together. I suspect the ceramic hammered the hole in the base closed a little.

     
    2.0

    All Hype

    By 

    from Huntsville, AL

    About Me Auto Enthusiast

    See all my reviews

    Ask me a question

    3 or more reviews submitted

    Pros

    • Easy To Install

    Cons

    • No Improvement In Performance

    Best Uses

    • Everyday Driving

    Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

    Bought a set for a Kia Soul+, little 2.0 could have used a bit more power, fuel economy didn't change, certainly didn't get any better performance, will probably go back to a good set of NGK, better plug and cheaper too...

    (0 of 1 customers found this review helpful)

     
    4.0

    Why not?

    By 

    from denver

    About Me Auto Enthusiast, Mechanic, Truck Enthusiast

    See all my reviews

    Ask me a question

    Verified Buyer
    3 or more reviews submitted

    Pros

    • Easy To Install

    Cons

      Best Uses

        Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

        The acid test would be if I'd done a dyno pull with a new set of 'standard' plugs then another pull with these. I did not do that.
        I can tell you they work as spark plugs - how much of the hype you believe is up to you.

         
        3.0

        No increased fuel efficency.

        By 

        from Yalaha, Fl

        About Me Casual Driver

        Pros

        • Easy To Install

        Cons

        • No Improvement In Performance

        Best Uses

        • Everyday Driving

        Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

        I'm just an average everyday driver. I fell for their claim of better fuel efficiency. If you are planning to buy this plug to improve your mileage, don't bother. Buy the regular plugs for your vehicle at a MUCH cheaper price. My mpg is the same as before in my 2008 Hyundai Elantra. Happy New Year!!!

         
        5.0

        Chevy S10

        By 

        from mi.

        About Me Casual Driver, Mechanic

        Pros

        • Durable
        • Easy To Install
        • Improves Engine Efficiency
        • Increases Power

        Cons

          Best Uses

          • Everyday Driving

          Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

          I've installed these in my S10 and not had a problem with them. I drive mainly highway miles and gained 5% in fuel mileage. Will keep useing E3's

          (1 of 1 customers found this review helpful)

           
          1.0

          bad news

          By 

          from dickson tennessee

          About Me Auto Enthusiast, Classic hot roder, Mechanic

          Pros

          • None

          Cons

          • Bad

          Best Uses

          • Leave it in the box

          Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

          after about 50000 miles i got a dead miss i pulled the plugs out and one of them had came apart in the cylinder (not good) had no performance gains that i could tell and gas milege did not change.i would not put them in a lawn mower now dont waste your money on them

           
          1.0

          Didnt work for me.

          By 

          from Stamford, CT.

          About Me Auto Enthusiast, Competitive Driver, Mechanic

          Ask me a question

          Verified Reviewer

          Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

          I installed these plugs in my '99 4.0 SOHC, slightly Race modified Ford Explorer. These spark plugs initially impressed me with what felt like a little more power but after 2 days, started misfiring and lite up my "check engine" light. OBD test came up with misfire. Never had this issue with any other plugs. Removed and went back to Autolites. Need to look into how to get refund.

           
          2.0

          To Much Money With No Show

          By 

          from lakeland, fl

          Pros

          • Easy To Install

          Cons

          • Difficult To Install
          • No Improvement In Performance

          Best Uses

          • Replacement

          Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

          I have had alot of sets of these the very first set i owned i never had any problem. since then however i had every problem in the book. i fix everything myself and also everyone else stuff. i have went throw 3 sets on my f150 all with misfires and rust on the ground. as well as i will be changing out a set in a 01 explorer tomorrow with misfires. they only thing these plugs are good for, is show and tell. do not buy them stick with oem.

          • Car & Truck:
          • Auto Enthusiast, Mechanic, Truck Enthusiast
           
          4.0

          Just put plugs in. They work great.

          By 

          from Gloucester, Ma

          Verified Buyer

          Pros

          • Increases Power
          • Need time to c fuel usage

          Cons

          • No problems

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Replacement

          Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

          I can feel a difference but have not had time to test out milage change. Hoping for at least 6-7%.

          • Car & Truck:
          • Auto Enthusiast, Casual Driver, Mechanic, Truck Enthusiast
           
          1.0

          first one failed in less than 4 weeks

          By 

          from ok. tulsa

          See all my reviews

          Comments about E3 Premium DiamondFIRE Electrode Automotive Spark Plug:

          i put these in my 02 explorer along with new autolite wires and a bwd coil. 3 weeks and 3 days i had a check engine lite with cylinder one misfire. traded the plugs in one and 2 cylinders and code came back as cylinder 2 misfire. you be the judge i am going to replace them all this weekend.

          Displaying reviews 1-10

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          Do you have questions about this product?

           

          Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

          2 Questions | 2 Answers
          Displaying questions 1-2
          • Q:

            I know that platinum or iridium plugs can last 100000 miles,but the E3 plug is a copper core.This type of plug,in the past,has had a much shorter life span.What is the life span of the E3 plug?
            Asked on 5/8/2010 by speedyd from Roundhead,Ohio

            1 answer

            • CUSTOMER CARE

              A:

              Near elimination of performance inhibiting carbon deposits, dramatically longer plug life and a 5-year/100,000 mile

              Answered on 5/10/2010 by Rose from AAP
          • Q:

            what is the estimated life span in miles?
            Asked on 5/7/2010 by speedyd from roundhead, ohio

            1 answer

            • CUSTOMER CARE

              A:

              Spark plugs, with the technology that we have today are known to last on average of 100,000 miles.

              Answered on 5/7/2010 by kevin from AAP
          Displaying questions 1-2

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