E3 Spark Plugs E3.48 Automotive, Truck, Van and SUV OEM Replacement Spark Plug , Pack of 1 Review

Average Reviews:

(More customer reviews)I purchased these plugs to use in my 98 Saturn SL2. The first thing to do is inspect the plugs before installing them. The finished product isn't the best. The threads on one of the plugs had some burrs on it that concerned me to the point where I decided to dress it with a file first before installing it. If not, it could've cross threaded the head which would have been disastrous!!!
The plugs come already gapped and aren't adjustable. There were some variances in the gaps. Since the variations were so slight, I felt it would not be an issue and decided to install them as is.
I debated on whether or not to use anti seize and eventually decided against it. The website for the spark plug doesn't really recommend it. It says that the threads are nickel plated which help to resist seizing and galling. Even though the plugs are warrantied for 5 yrs./100k miles, I don't plan on leaving them in there that long.
If you do plan on leaving the plugs in for a long time, anti seize would probably be a good idea. Don't forget to adjust the torque values if you decide to use anti seize.

I just installed the plugs yesterday. The car seems to start up faster and has more pep when you hit the throttle. The old plugs that were removed were relatively new (5,000 miles on them) and in good condition so I don't think the improvements were a matter of worn plugs being replaced with new plugs. Even so, those things are hard to measure and open to the power of suggestion. The real test will be the miles per gallon, which I will be evaluating and reporting on after driving for approx. one month.
Stay tuned!!!
Update: It's one month and 1,200 miles later and the numbers are in.
First, some driving impressions. The car does run smoother and has more power. The car maintains 65 mph on the freeway with less effort than it used to take. Before, I could feel the engine "working" to maintain 65 mph. Now it cruises at 65 and I need to keep an eye on the speedometer.
Now the good stuff. My SL2 averaged 25.75 mpg versus 23.02 mpg for the month prior to installing the E3 spark plugs. I have to admit that because of the increased performance, my foot has been heavier on the gas pedal than normal so the mileage could possibly have been even a little better. All in all, I would say these spark plugs are a worth while purchase that will eventually pay for themselves.

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Bosch (4510) WGR7DQI Platinum IR Fusion Spark Plug, Pack of 1 Review

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(More customer reviews)I have long been a Bosch sparkplug fan, going back to my first Porsche (1968) followed not long after by my first BMW Bavaria (1972). I have tried other plugs, most notably NGK (my Lotus, Ferrari and my vintage Brabham Formula 2 race car). Long before that, I was a Champion addict (my two Alfa Romeos, a Triumph Spitfire, and several domestics). I can't say that NGK or Champion makes a bad plug. The NGKs were especially well suited to the Lotus' race engine and ditto for the Brabham. But then no one but Bosch had a platinum plug at back then, and I could not seem to find a good heat range (read: cold enough) match up between the Bosch platinums and the Lotus or Brabham race engines like I could with the NGK.
Fast forward to the 21st century. Bosch now seems to have the right plug for almost every application. Platinums are now improved with the addition of irridium for higher heat tolerance. And then there are the plugs with multiple electrodes. At first, I thought this might just be a gimmick, but now I am sold. These plugs show a slight improvement on the dyno (don't get carried away with expectations, but anything that is better trumps any thing else). They also show an distinct improvement in emissions, which suggests a better flame front and more complete burn.
At this point, I am sold. Inspections shows these stay really clean, and I expect a very long useful life. That makes them a bargain, but even more so when you factor in the price. I remember paying at least twice this for Bosch platinums back in the 1960's! Once I work my way through the remaining stockpiles of NGKs, this Bosch Fusion IR will be the only plug I will keep on hand.

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Bosch Platinum IR Fusion spark plug has an iridium and platinum fused center electrode with surface air-gap firing delivering optimum horsepower, better than OE iridium plugs.

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E3 Spark Plugs E3.64 Automotive Spark Plug, Pack of 1 Review

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(More customer reviews)I used these plugs in my 2002 VW Passat 1.8T AWM for a little more then a year and a half. I had used them for just a tad over 20,000 Miles.
When new they worked just as well as stock plugs. However I saw no improvement in MPG. They started to fail and misfire at just a few miles over 20,000 Miles of use. I have never had spark plugs wear out so fast. I expected more from this product. I am extremely disappointed in these plugs.
I've had Autolite Platinum's that lasted 40,000 Miles (twice as long) and they cost about half the price.
I will not buy E3 Spark Plugs in the future!

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