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2021 Bighorn

Dlguzz

New Member
Sep 22, 2020
28
6
Truck Year
Not Listed
The truck is built. Just waiting for it to ship. Looking for any known issues, especially on the gen 3 engine. I'm new to diesel, although I think I know the basics. Any fuel/preventative maintenance pointers would be appreciated. Also, any known real life mpg in the 70-80 mph speed range. Thx.
 
Last edited:

Dlguzz

New Member
Sep 22, 2020
28
6
Truck Year
Not Listed
Thanks! I figured that. Maybe some feedback on the '20's.
 

Mxvet0354

Member
Apr 20, 2020
54
21
Truck Year
2020
Congrats on your new ride. I had a rough start with my 2020 but smooth sailing since then.

I think you will see 70ish is the sweet spot for mpg. I see, hand calculated, about 28.4 if I am close to 70. Closer to 80 it seems to drop considerably, to about 24. On back roads in TN, I can see over 30 with the 55 to 65mph range.
 

Dlguzz

New Member
Sep 22, 2020
28
6
Truck Year
Not Listed
Excellent! Thanks! Up here in Idaho, we are regularly doing 75-85 on I-84. Hard to get info from youtube test drives at that speed. Your numbers are what I was hoping for. Thanks again.
 

Lone5tar

New Member
Aug 18, 2020
1
0
Truck Year
2020
2020 I’ve put about 4,500 miles on it in the last 6 months with no problems but way too early in the game. I average around 26-27 mpg with 70/30 HWY/city. 70-75mph will definitely get you to 27+ mpg unloaded. Hope this helps!
 
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