OMG The news just keeps on coming it:
Well after all these years of they saying it cannot be done…I have found proof I was on the right track, or that at least it can be done.
Full sized vans CAN GET 29/30MPG any highway speeds.
THAT blows all the "you cannot get a big box like a van to do 30MPG..."
GM Has TWO models of vans that do just that.
From
https://www.dieselplace.com/.../2-8-...press-vans.../
28 Expressvan
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Joined Jun 17, 2018
13 Posts
We are typically running about 7500 lbs GVW in Chicago traffic and also 100 mile runs on the highway. The little motor launches the van quite well, since it has way more bottom end than typical gas v-8's (325 ft lbs @ 1500 rpm, 370 @2000).
This van runs a Turbocharged 2.8 Diesel that makes 360FtLbs @ 2000 and 185 HP @ 3200RPMs, and a 8 speed automatic.
In the city, it drives about the same as the 5.4 E 250 it replaced. On the highway, no trouble merging and accelerating while loaded. It’s no race car, but it’s fine.
Fuel Economy is exceptional when heavily loaded. We run about 20 to 21 mpg city, and holding a steady 66 mph (at 65 it will downshift to 7th) we just got 33.3 mpg in humid 90 weather with A/C on over 60 miles. On open road without trailing a semi, we get a little over 30.
The other one is a 2019 Chevy Express Passenger RWD 3500 155” wheel base custom outfitted running 4.3L V6 with Direct Injection and variable Valve Timing making 298ft-lbs@3,900rpm, and 276hp @ 5,200rpm though a 8 speed automatic.
This large buzz bomb can make 19 City and 29 Highway MPG.
REALLY!