Let's think of it this way. OEM's are at the point of spending $1,000,000 for every 0.1 MPG increment they are able to gain in today's new vehicle market.
If the e3 spark plugs made a substantial difference, wouldn't they have already done it?
One of my friends did some work on an e3 spark plugs research project at Michigan Tech, and if I recall, the benefits were negligible.
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- James
I like diesels
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