Posts Tagged E3

Reply from E3 About Their Spark Plug Issues

This is a follow up from a post I made last year about my poor experience with E3 spark plugs:

After a year of seeing people’s experiences in the comments, I decided to contact E3 and speak to them about the issues we have had.

I first described my problems with my New Yorker, and I got a reply from Chris LaCouture:


I apologize for the problems you seem to have experienced with your E3 replacement spark plugs. May I ask, do you still have the E3.46's that you installed in your 1993 Chrysler New Yorker?

C. LaCouture
E3 Spark Plugs

I replied back and said that I returned them to the auto parts store, because I had to get regular plugs in order to get my car to run. This was his reply:


That is rather unfortunate. I do appreciate you sharing your experience with me. It is somewhat valuable as I keep track of all problems based on part number and vehicle. However, without having the plugs for analysis there is no way for me to determine what could have been the problem let alone fix it. 

I advise that you mention to the people commenting about bad experiences that they need to contact me about any problems. We take customer satisfaction very seriously and I work very hard to assist our customers with any problems they may have.

Again, thank you for sharing with me.

Chris LaCouture
E3 Spark Plugs

E3 is interested in getting all their problem plugs back, so they can analyze them and see what the issue is. This means you can send them back, and they should refund you because of their warranty. So if you have issues with your plugs, please contact Chris LaCouture at

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E3 Spark Plugs – My Experience

Note: For all new readers, there is a follow up from E3 at Basically get in contact with Chris Lacouture @, they want their problem plugs back and should issue you a refund under warranty.

Have you heard about E3 Spark Plugs? Diamond fire technology for much better spark. The US EPA endorses them, saying these plugs actually make a difference in how the fuel burns, instead of just how long the plug lasts.

I decided to give them a try in my Chrysler New Yorker. Who knows how long the old plugs have been in there, but they have been changed before (Bosch Super Plus came out) and wanted to see what they were all about. They promised a smoother running engine, more fuel mileage, and long life (5 years or 100,000 miles, whichever comes first for warranty).

Hit the jump to find out how they fared with me:

Read the rest of this entry »

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