Still waiting on my plates from the dealer on my "new" Dodge. Bought it used with 35k but to me it is still new. I had a 99 Dodge Cummins before but the new High Output engines are new to me. My truck manufacture date is 8/03 in Mexico. Which engine do I have, the 555? The truck is a 2004 but I see references to 2004. 5.
I have run two tanks of fuel and carefully hand calculated my mileage at 20. 7 and 20. 9 on the Houston freeway. My previous Dodge usually got 18 to 19 (empty of course) so it is a little better.
Look forward to your input Oo.
PeaceKeeper
I have run two tanks of fuel and carefully hand calculated my mileage at 20. 7 and 20. 9 on the Houston freeway. My previous Dodge usually got 18 to 19 (empty of course) so it is a little better.

Look forward to your input Oo.
PeaceKeeper