Will a rooftop cargo box make mpg even worse than TT already does?

Will a rooftop cargo box make mpg even worse than TT already does?

So this rig averages 10 +/- 1. If I add one of those decently large molded rooftop cargo boxes to the top of the truck cap, will my mpg get even worse, make no difference since camper is already doing a number on my mpg? I'll probably try it at some point as I already have it from a different truck but thought I'd get opinions. Thanks. Nevada US Highway 50 between Great Basin NP and Delta, UT.

u/crevasse2 — 2 days ago

Does this Mini make my log look big?

Olympic National Park. Big trees. Olympic sized. Mini for scale.

u/crevasse2 — 27 days ago

Anybody have a GTD Sport cap from marketplace or gtdsport.com?

Anybody have one of these metal caps? Similar to smart cap, ovs, AliExpress models. They're close by and I need a 6.5' for f150. Thinking I might go this route this time especially since I can go pick it up and not need to wait a month or more for a painted fiberglass one from the usual suspects. Mostly interested in fit and finish, locks, rust.

web site

marketplace

reddit.com
u/crevasse2 — 3 months ago