^ Just a friendly suggestion...I'd actually leave that truck outside when it has salt and muck on it. The salt will not be as active outside in colder temps than when its inside in the garage.

 

The benefit of such depends where you live. In moist climates, water condensates on the vehicle overnight because of precipitation and dew. Dew is the result of radiative cooling. The body gets colder than the environment and near the dewpoint temperature this results in water deposition all over the body, providing new fuel to rust and rewetting dried salt.

This is the reason my 2003 Element "beater" deteriorated so fast. It was an outdoor car because I didn't have a garage space for it. It rusted all year long, even in the summer. The brake calipers and rotors rotted out and needed replaced before the pads were halfway worn.

In contrast, my 99 CRV has always been parked in the garage and is on it's original brakes and exhaust.

 

Well, assumming the guy actually drives his car, not just stores it in the garage after its been thoroughly coated in road salt, there will be plenty of opportunities for the salt coating to be refueled with moisture, even without condensation.

If there is any precipitation, or the road is at all wet from melting snow, or even just hitting puddles, car, and all that salt, is gonna get wet again each time its driven.

Its a balance. Garage will preserve a car longer, except on those days when its covered with wet salt...

Sent from my SM-G920P using IB AutoGroup