E-3 Sparkplugs
 

Any one try these yet , How about the NGK's

E-3, they've been ok so far. gained a little gas mileage

I just got the Ngk single platinum because of a spark knock at 80k miles. No change still knocks. Still get average of 17 mpg

Now that you have had the E3 in for almost a year are you still happy with them? Some posts are saying that the E3's are causing a rough idle. any input:dontknow2:

I had them for a little while, didn't like them at all. switched to NGK's

Installed e3,s my jeep sputtered and misfired bigtime changed back to new stock runs like a champ.

They came back out 1500 miles later, started running bad

X2 E3's fouled within 1000K on my JK.

I can;'t stand my E3's. at 1500rpm my engine will back fires, and kicks like a mule. They will be coming out in a short amount of time.