Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Jeep transfer case swap

AdrianD · 08-13-2020, 06:16 AM

Pump to pump results are in!

27.705 MPG (8.49 l/100km) over 265 miles (427km) of national roads. Including some roads with construction work and a trip in town with mild traffic. All driving done with A/C on.
Trip computer showed 34.59 MPG, which is in-tune with the differences I've noticed in the past.

Previous results in similar conditions:
25.59 MPG (9.19 l/100km) over 318 miles (512 km)

All aero mods were in place in both situations.

I've never had such a low fuel consumption on national roads. Not even on the old Jeep. This is a personal record for me and it looks like the transfer case used up an extra 0.7 l/100km. Factoring in around 15.000km per year, that's 105 liters of fuel saved every year.

What would be the next mod without making my car look weird and maintain the current ride height?
A rear spoiler to improve the airflow at the rear of the car? The rear window gets dirty instantly in bad weather, so I assume some gains could be had there.

08-13-2020, 06:16 AM	#23 (permalink)
AdrianD EcoModding Lurker Join Date: Apr 2012 Location: Overseas Posts: 81 Thanks: 9 Thanked 37 Times in 29 Posts	Pump to pump results are in! 27.705 MPG (8.49 l/100km) over 265 miles (427km) of national roads. Including some roads with construction work and a trip in town with mild traffic. All driving done with A/C on. Trip computer showed 34.59 MPG, which is in-tune with the differences I've noticed in the past. Previous results in similar conditions: 25.59 MPG (9.19 l/100km) over 318 miles (512 km) All aero mods were in place in both situations. I've never had such a low fuel consumption on national roads. Not even on the old Jeep. This is a personal record for me and it looks like the transfer case used up an extra 0.7 l/100km. Factoring in around 15.000km per year, that's 105 liters of fuel saved every year. What would be the next mod without making my car look weird and maintain the current ride height? A rear spoiler to improve the airflow at the rear of the car? The rear window gets dirty instantly in bad weather, so I assume some gains could be had there.