Hello all, I currently own a 2003 6.0 Powerstroke with 250,000 miles on it and am looking at buying an 08 6.4 Powerstroke with 138,000 miles. I am a Ford guy
and have loved my 6.0. I have read a lot about how potent the 6.4's can be and how easy it is to achieve good fuel economy. I average about 23mpg (hand calculated of course) with my 6.0 and would like to meet or beat that. I have a few questions and concerns about the 6.4. I am looking for a truck in the south or the west coast. Living in Duluth, MN we have the worst winter road conditions and the salt destroys the undercarriage of vehicles.
1.) Is it worth buying a higher mileage 6.4? I bought my 6.0 with 132,000 on it just over 2 years ago, so i do quite a bit of driving. If so what should look out for?
2.) What tuner should I use to get the best blend of power, fuel efficiency, and reliability? intake and exhaust would be an automatic, egr delete would be done with the tuner.
3.) I know the 5R110 is a solid transmission, but can it hold up to a 6.4 that does a lot of daily driving and towing with a tune on it? To be perfectly honest i have never changed the transmission fluid on my 6.0 and it shifts like the day I got it, but I would never do this with a newer truck.
4.) What makes the 6.4 better than the Duramax?? My buddy has one and my 6.0 and his Dmax have been neck and neck. I would love to send him crying home to his momma because his Allison cant hold enough power.
Thanks from a hopefully future 6.4 owner!