Originally Posted by SRTengineers
Trust me again, no Nanny. The 6.1L is built "tight" and take some level of miles (~500) to properly seal the rings and reduce the friction in the rotating components. MPG will go up...5mpg seems a bit high, but not totally out of the norm...especially when you consider the differences in wind during your trip.
I want you to know I believe the 6.1 is a monster of an engine and I am quite pleased with its performance. I did not consider the wind, were you logged into my computer? LOL It was actually rainning and we went through storms all day so you could be correct in that could have played a role, the mileage increase was DRAMATIC, the car only sat about 10 minutes while we gassed and used the facilities. Love the car not complaining just very curious as I have been an ASE certified Master Mechanic for over 15 years and this car is AWESOME Thanks guys!
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