Oct 15, 2011 #1 M Mr.Mopar New Member Joined Jun 15, 2011 Messages 1 Reaction score 0 Has anyone tried the E3 Spark plugs in the 5.7 Hemi? Just wondering if it actually does help with gas mileage.
Has anyone tried the E3 Spark plugs in the 5.7 Hemi? Just wondering if it actually does help with gas mileage.
Dec 3, 2011 #2 G gdtmdan Member Joined Jul 24, 2011 Messages 14 Reaction score 0 Location PA y son tried them in his stratus and they are very tempermental changed back to champion platnum
Dec 12, 2011 #3 mullinax95 Active Member Joined Jun 15, 2011 Messages 27 Reaction score 0 I bought one for my weed eater and it ran worse than it did with the bad plug.
