holy smoke this engine rocks
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holy smoke this engine rocks
I got ten thousand miles on my 08 F-350 6.4l. This truck is the strongest stock running truck I ever run down the highway. I been using my 2000 f-350 (7.3l) to allow my new truck to break in and holy crap ford finally got it right compared to my 6.0 (that was alright when chipped and programmed to the gill). The only thing is pulling a grade in West Virginia with 18000# on the ball(Fancy gap on I-77) my 7.3 would lose thirty miles per hour and run a little warm, and my 6.0 would run so damn hot it would go into limp mode(pretty embrassing). But this new one only lost twelwe miles per hour, and got 12mpg amazing I'm sold.
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From: rocky mtn high summit co.
I towed with my 08 for the first time on sat. small load only about 8000 l.b.s.total but it was between summit county co. and estes park co. (many small hills 11000-12000 ft.) was very impressed, ran 70-75 whole trip and got 13.9 (non reset lie-o-meter) ran like a beast. better than my turned up 7.3 so far I love my truck!
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From: at Work
Originally Posted by mud rat jr.
I towed with my 08 for the first time on sat. small load only about 8000 l.b.s.total but it was between summit county co. and estes park co. (many small hills 11000-12000 ft.) was very impressed, ran 70-75 whole trip and got 13.9 (non reset lie-o-meter) ran like a beast. better than my turned up 7.3 so far I love my truck!
There must be some F'dup engine builders at IH, cause everyone of these engines is diff. From what I've read and get myself 10-12 empty 65 mph is the norm.
I know the territory your in and holding at 70-75 with that load at that fuel rate is well....YOU MY FRIEND HAVE THE BEST 08 FORD HAS BUILT TO DATE.
Congrats! ALso, 75 through Estes Park is almost suicidal.
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Joined: Feb 2007
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From: Oceanside, Ca
Check his original post on the 13.9 MPG... he states "non reset lie-o-meter". So using a lie-o-meter is going to give inacurate readings plus he did not reset his for that trip. Its NOT hand calculated so who knows what his exact mileage was??? Like the above poster I hightly doubt it was 13.9... more like 8-10 especially at that speed. In those hills maybe even less, who knows!
Last edited by Herbie02PSD; Oct 9, 2007 at 05:58 PM.
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My truck pulled like no other but used fuel, but to be expected. My trailer is 15k 5th wheel and 3.73 f350 KR long bed 4x4 got 8.9 towing at 70. I got 7.5 towing at 80 in west Texas (which is the speed limit). It is 6.4 of course. 7.5 mpg.... could wish for more but 80 down the highway steady as a rock..... Would not change a thing.
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be honest with you guys having a v-8 diesel is a cool thing but in mileage you pay for it by the fact of the rotational energy and BTU's that it takes to keep the beast rotating past 2000 rpms... If you could harness the low end torque through a good fuel curve that wouldn't make the transmission **** the bed you would have an efficient machine.
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From: IOWA
I pull almost 11,000lbs behind my truck I get about 8.0mpg at 65mph hand calculated. Was worse at 68mph about 7.0mpg but did even feel like it's back their unless their was bump in the road love it all power I need to pull my trailer down road. I would not own anything else but Ford PSD and SD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Originally Posted by dt444e
be honest with you guys having a v-8 diesel is a cool thing but in mileage you pay for it by the fact of the rotational energy and BTU's that it takes to keep the beast rotating past 2000 rpms... If you could harness the low end torque through a good fuel curve that wouldn't make the transmission **** the bed you would have an efficient machine.
The 6.7 Dodge/Cummins six cylinder peak horsepower is rated at 3013 rpm, so how is having a V8 spinning past 2,000 any more of a "penalty"??
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From: Snohomish, Washington
Two extra cylinders is how and why the 6.4 gets worse fuel mileage but the Dodge Tranny is a serious POS so it is a trade off. Buddy has the Dodge and has already gone through three trannies. I think I take the fuel mileage issue on the Ford. Plus, it looks better.
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Originally Posted by origcharger
The 6.7 Dodge/Cummins six cylinder peak horsepower is rated at 3013 rpm, so how is having a V8 spinning past 2,000 any more of a "penalty"??
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Originally Posted by dt444e
origcharger,,, read my line again slooooooowwwwwly, I'm not talking horsepower... Talking losses with the factory fuel curve setting and the 6.7l or a 1935 John Deere can make as much horsepower as they want at 1000 rpm or 8500 rpm but it takes fuel and lots of it is used to make up for the losses through the extra rotating mass. Thats my point, power is a square function. If losses are 50@1000rpm then they're 200@2000rpm(just an example)
I read your line very slowly and you implied the V8 spinning past 2,000 rpm was costing fuel mileage over, I assume a six banger.
My point is how does a larger displacement six banger spinning past 2,000 rpm use any less? The longer stroke six cylinder should have more drag at a given rpm as the pistons travel more feet per minute.