2015 here... Aluminum bed has no rust..

But it doesn't have any paint either....lol

Yep, havent seen it on a Ford bedside yet. But quite a few other manufactures have aluminum hoods and we see a lot of that kind of corrosion on them.

Oxidation (still rust) or paint failure or?

I'm thinking initial factory primer...its right down to the aluminum .

Then it has bubbles .. Of blisters with the white powder oxidation going on

typical aluminum stuff

I'll start a fire under their hyner down PPG,
Yrah right lol

2019 Ford Ranger, full paint coverage, no blemishes unless I made them, and of course, no rust AND it’s a “trapping truck” LOL

No problems with a 2019 here

I haven't seen it on any F150s here. Seen it on several explorer hoods, though. The older expeditions used to have that on the rear hatches real bad too.

Is Ford buying?
Did GM in the 90s?

I had a '06 car that had aluminum hood and front fenders on it. Owned till last year, put over 170,000 miles on it.
Never had a problem with the paint or corrosion.

I suspect that there is nothing wrong or inherently bad about using aluminum for car bodies.
Ford just don't know what its doing.
I suspect American auto mfg's are more worried about other things than making a long lasting vehicle.

2018 F150 and a 2021 F250 , just purchased a new Bronco due to my daughters 2018 Mustang being totaled no problems here. I will say they get washed and wax frequently. Eric

80s chevys had problems with paint peeling culprit was the primer they were using.

2016 F150 with 180k+, no corrosion, rust or paint issues. My daughter has the corrosion paint bubbling on on lead edge of hood on her 2017 Explorer that apparently is fairly common

Just bought a 2016 Ford Expedition with 151K miles. Really nice shape. Black and I really like it. Have to put some step running boards on it.

Moosetrot

06' with 260k, no rust or missing paint, never had any major issues with it.