Ok so i tried the E3 spark plugs in the jeep to check them out and see if they make better fuel econmy.

So i put them in and had problems with them the jeep would shut off after running on idle for around 10 mins it would start right back up

and would also hick up going down the road. Used them for about 2 weeks

so today i put the auto lite oem ones back in and all the problems stoped


So to infor everyone the E3 dont work well in the jeeps