Fuel Mileage secret
Professional
Joined: Jun 2009
Posts: 163
Likes: 0
From: Rhode Island
The max on my tires is 80psi.
3rd gen Ram, Newbies
Joined: May 2008
Posts: 3,815
Likes: 0
From: Chicago
I think that is more. Driving in chicago, and i mean IN chicago, like lights and stop signs every block or two, I get 9 MPG.
Record Breaker
Joined: Jul 2007
Posts: 1,300
Likes: 0
From: Back in NY!!
For some reason I can't get into my albums to load pics. But anyway, I just changed all 16 plugs on my truck. And wouldn't you know it, first new plug I took out of the box was smashed shut! No gap at all! After checking all 16 I found less than half were at the recomended .045 gap. What happened to the little cardboard or plastic tubes they used to put over the ends of plugs to protect the electrode from this stuff?
Record Breaker
Joined: Nov 2009
Posts: 1,886
Likes: 0
From: Orlando, Fl
I just reinstalled the factory champion's. Mine were so f'ed up because the previous owner obviously never did routine maintenance.
Record Breaker
Joined: Sep 2008
Posts: 1,676
Likes: 0
From: Damon, TEXAS!
If you do that, you will wear your tires out right down the middle! 
I changed my intake plugs on my '08 4.7. None of the plugs were gapped correctly.
I changed my intake plugs on my '08 4.7. None of the plugs were gapped correctly.