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I have a CCSB with 4.30's. My average tank fill ups have been 12.5-12.8. This is mostly town driving and a little back road home. I have seen an entire tank fill of 14.85 a few weeks ago when I drove the pass to Bend Or and back. I don't drive much on the hwy, but recently did for 40 miles and the truck calc for that 40 miles said over 16. I'm also running 295/70/18's. Tire size can make a large impact on mpg and performance with the 6.2.
I came from a 2016 6.2 with 3.73 gears that consistently did 11 on my average tank fills. I couldn't stand the 3.73's.
I have a CCSB with 4.30's. My average tank fill ups have been 12.5-12.8. This is mostly town driving and a little back road home. I have seen an entire tank fill of 14.85 a few weeks ago when I drove the pass to Bend Or and back. I don't drive much on the hwy, but recently did for 40 miles and the truck calc for that 40 miles said over 16. I'm also running 295/70/18's. Tire size can make a large impact on mpg and performance with the 6.2.
I came from a 2016 6.2 with 3.73 gears that consistently did 11 on my average tank fills. I couldn't stand the 3.73's.
That doesn't seem too bad. I do a lot of 55-65 mph highway cruising so I'm thinking I would probably see mpg closer to 16. Do you run premium or regular fuel in it? I had a 2012 ecoboost that could get 20 mpg but after I started having problems with it, it never got above 15 mpg. It could only get 10 or so at 75-80 mph.
If I go the superduty route, I'm also planning on running some 295/70/18's on it, most likely in the ST Maxx.
Just regular 87 fuel. I did try the premium on my last 6.2 for awhile with no noticeable difference, so I have stuck with 87 ever since.
The cooper maxx are one of the most popular tires in my area for anyone running offroad. Almost all of the loggers run them. Those 295's spec out at 34.25" tall, a little taller than the largest stocker (275/65/20)34.1". Unless you plan to do a lot of unladen freeway driving, I strongly recommend getting the 4.30 gears.
Can you tell a difference in the motors and transmission going from the 16 to 17? And if you were planning on keeping the stock size tire would the 3.73 be OK?
I can't really tell a difference in the tranny. I can definitely notice the torque bump at the lower rpm. My new truck pulls much harder in that 3500 +/- rpm range. It is much easier to keep my rather light 8000lb toy hauler in that rpm range. My last 6.2 really needed to be in the 4k+ rpm range which aligns with the max torque at 4500 in that gen1 6.2.
Gears is all about what one wants to do with the 6.2. Definitely keeping stock tires is a plus for the 3.73's. I hated my 3.73's, but I came to the 6.2 after driving cummins and powerstrokes for 20 years. Maybe the 3.73's will eek out a tad better freeway mpg, but town and towing the 4.30's will win in all categories. I just don't see any benefit to the taller 3.73 gears other than for a stock tire hwy runner SD.
Just regular 87 fuel. I did try the premium on my last 6.2 for awhile with no noticeable difference, so I have stuck with 87 ever since.
The cooper maxx are one of the most popular tires in my area for anyone running offroad. Almost all of the loggers run them. Those 295's spec out at 34.25" tall, a little taller than the largest stocker (275/65/20)34.1". Unless you plan to do a lot of unladen freeway driving, I strongly recommend getting the 4.30 gears.
To really tell you need to run several tanks in it.
12-24-2016, 11:54 PM
