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2020 Ford F-250 7.3L *Test Drive*

Old 02-03-2020, 05:05 PM
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Originally Posted by Riptide31 View Post
I imagine these guys are beholden to the manuf for the power train combo that is sent for testing. The 7.3 had 4.30 rear gearing and I think I remember seeing the 6.6 (silver truck?) had a 3.73 rear. I am not sure any valid comparison can be made here. Put the same rear gearing in them both and run them. The ford should still best the 6.6 chev but I’ll bet the gap would be much smaller.
You can only get a 3.42 or 3.73 ratio in the Chevy. Chevy and Ford both sent their best trucks for the job as this was for gold hitch awards.

Last edited by JExpedition07; 02-03-2020 at 05:16 PM.
Old 02-03-2020, 05:13 PM
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The 6.6L seemed under-cooled which I think is the biggest problem. The 7.3L has big cooling jackets and piston oil squirters to keep things cool under load. The 6.6L Chevy seems it was overheating the CATS and was overtaxed so it had to cut revs back and richen the mixture to prevent engine/catalyst damage where the Ford was able to run balls to the walls the whole run.

Last edited by JExpedition07; 02-03-2020 at 05:21 PM.
Old 02-03-2020, 05:14 PM
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Originally Posted by Mpellet View Post
My 2018 F350 SRW with the 6.2 doesn’t even get close to those numbers. No tow load and the truck bed empty with a mix of local and highway driving, my average is between 12.5 -13.2. I don’t like to waste $ on brake pad replacements and can assure you those numbers are not a reflection of screaming up to stop signs and red lights with hard acceleration between stops. Great truck but anyone expecting to see anything like 17 mpg on the highway is going to be very disappointed......
The 7.3's at the dealership are averaging low to mid 15's with 3.55 gears...driven reasonably. That's 4wd models and one being the Tremor. The Tremor is .05 less MPG. I have one of these on order.

Your 6.2 has a 6 speed and this is one reason your MPG are what they are. My 6.2 with me driving it averages almost 14...city/hwy combined. When employees drive her I am lucky to see 12...that's not often though. Tire pressure believe it or not has a lot to do with MPG. I change oil every 5k and rotate/balance tires, tranny and rear end fluid were changed at 100k.. truck run like a top 142k miles. sold her to one of my employees when the new truck comes in.
Old 02-03-2020, 05:32 PM
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Originally Posted by Jassman View Post
The 7.3's at the dealership are averaging low to mid 15's with 3.55 gears...driven reasonably. That's 4wd models and one being the Tremor. The Tremor is .05 less MPG. I have one of these on order.

Your 6.2 has a 6 speed and this is one reason your MPG are what they are. My 6.2 with me driving it averages almost 14...city/hwy combined. When employees drive her I am lucky to see 12...that's not often though. Tire pressure believe it or not has a lot to do with MPG. I change oil every 5k and rotate/balance tires, tranny and rear end fluid were changed at 100k.. truck run like a top 142k miles. sold her to one of my employees when the new truck comes in.
Wow thanks I had no idea how many speeds my truck has.

I said I get as much as 13.2 MPG and you’re saying you get almost 14. Your avatar says you’re in Mississippi, not pulling nearly as many hills as I do in New England, in the flats our mileage would likely be the same, which has me wondering what your point is?

Last edited by Mpellet; 02-03-2020 at 05:43 PM.
Old 02-03-2020, 06:12 PM
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I'm just glad Ford saw the light and is designing push rod engines again.
Old 02-03-2020, 07:55 PM
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Well, so maybe the way to test them is to use a 7.3 w 3.73 rear (ford make that?) to compare with the 6.6 chev w 3.73.
Old 02-03-2020, 08:08 PM
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Originally Posted by Riptide31 View Post
Well, so maybe the way to test them is to use a 7.3 w 3.73 rear (ford make that?) to compare with the 6.6 chev w 3.73.
The 3.73 is standard in the F350 and an option in the F250.
Old 02-03-2020, 10:49 PM
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Originally Posted by Riptide31 View Post
Well, so maybe the way to test them is to use a 7.3 w 3.73 rear (ford make that?) to compare with the 6.6 chev w 3.73.
It won't make a significant difference, the truck will just use a different transmission gear.
Old 02-04-2020, 03:37 AM
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Originally Posted by Mpellet View Post
Wow thanks I had no idea how many speeds my truck has.

I said I get as much as 13.2 MPG and you’re saying you get almost 14. Your avatar says you’re in Mississippi, not pulling nearly as many hills as I do in New England, in the flats our mileage would likely be the same, which has me wondering what your point is?

It was a long day, late and I was trying to get a little entertainment in before I went to bed. What I meant to say... I was close to 15 w 3.73 gears and it is not much different than the new 7.3 with 355 gears and 10 speed that I drove for about 50 miles. There are some reports that are now getting 17 on you tube. My point...you should move to the Flat south...warmer, better fuel mileage pulling your boat...and you can fish all year long.
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Old 02-04-2020, 04:51 AM
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Originally Posted by Milehog View Post
It won't make a significant difference, the truck will just use a different transmission gear.
it makes sense but I’d like to see it
Old 02-04-2020, 05:06 AM
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Originally Posted by Jassman View Post
It was a long day, late and I was trying to get a little entertainment in before I went to bed. What I meant to say... I was close to 15 w 3.73 gears and it is not much different than the new 7.3 with 355 gears and 10 speed that I drove for about 50 miles. There are some reports that are now getting 17 on you tube. My point...you should move to the Flat south...warmer, better fuel mileage pulling your boat...and you can fish all year long.
Agreed. The 10 speeds in the new trucks should have a positive effect on mpg/towing/etc....

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