6.4 or 6.7?
#47
05-04-2012, 08:15 AM
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I went from a 2006 6.0 to a 2008 6.4 and now have a 2012 6.7.
The 6.4 was an improvement compared to the 6.0 when it came to the noise inside the cab. However, I was shocked about the mpg: it dropped roughly 2.0 to 14mpg and I remember only once to see the magic 15mpg number. What had made it worse, I downgraded from a F350 Dually to a F250, which had been slightly lighter.
My 2012 6.7 gives me currently 16.5mpg in the city and is again a Dually. Even untuned it is more powerful than my tuned 6.4 from a torque perspective. When it comes to the noise level inside the cab, I don't even hear a difference between the diesel and a gas model anymore.
The 6.4 was an improvement compared to the 6.0 when it came to the noise inside the cab. However, I was shocked about the mpg: it dropped roughly 2.0 to 14mpg and I remember only once to see the magic 15mpg number. What had made it worse, I downgraded from a F350 Dually to a F250, which had been slightly lighter.
My 2012 6.7 gives me currently 16.5mpg in the city and is again a Dually. Even untuned it is more powerful than my tuned 6.4 from a torque perspective. When it comes to the noise level inside the cab, I don't even hear a difference between the diesel and a gas model anymore.
#48
05-04-2012, 10:57 AM
Join Date: Sep 2009
Location: Va Beach, VA
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I went from a 2006 6.0 to a 2008 6.4 and now have a 2012 6.7.
The 6.4 was an improvement compared to the 6.0 when it came to the noise inside the cab. However, I was shocked about the mpg: it dropped roughly 2.0 to 14mpg and I remember only once to see the magic 15mpg number. What had made it worse, I downgraded from a F350 Dually to a F250, which had been slightly lighter.
My 2012 6.7 gives me currently 16.5mpg in the city and is again a Dually. Even untuned it is more powerful than my tuned 6.4 from a torque perspective. When it comes to the noise level inside the cab, I don't even hear a difference between the diesel and a gas model anymore.
The 6.4 was an improvement compared to the 6.0 when it came to the noise inside the cab. However, I was shocked about the mpg: it dropped roughly 2.0 to 14mpg and I remember only once to see the magic 15mpg number. What had made it worse, I downgraded from a F350 Dually to a F250, which had been slightly lighter.
My 2012 6.7 gives me currently 16.5mpg in the city and is again a Dually. Even untuned it is more powerful than my tuned 6.4 from a torque perspective. When it comes to the noise level inside the cab, I don't even hear a difference between the diesel and a gas model anymore.
You're making me very happy with my decision and purchase!!
Thanks for the great comparison!
#49
05-04-2012, 11:35 AM
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