2015 and up f-150 aluminum body rust or corrosion issues.
Inspect the frame well. The body is aluminum, but the frame is steel. Since you live in MN, that could be an issue. If I lived in the Rust Belt, I would buy all of my used vehicles in the South.
The only rust issue I had on my 2015 was on the top of one of my front shocks. Otherwise everything has been fine.
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Frame and suspension are where you'll see the corrosion issues. The good news is that's really easy to see underneath within a foot or two of the four wheel wells. No aluminum corosion issues have popped up on there in discussions.
Yeah not too concerned about the frame and suspension. Just the body because of the switch to aluminum body parts. I did see elsewhere people were having few issues with cracking in stressed areas. But nothing that is telling me no don’t go this route. My 09 super duty is bad under the cab, so bad passenger side braces are no longer there! A coworker had a 2017 Chevy truck, rusting real bad. I don’t want to go that route!
So far, and it’s been 11-12 years since the aluminum body was released, corrosion has not been an issue on body panels. That’s with factory paint. A truck that has had collision repair, I wouldn’t bet on. Make sure whatever you’re looking at hasn’t been wrecked or repainted in any way.
Denny
My 2017 truck looks great. There’s a little bit of paint coming off the factory-finish aluminum running boards because of the cold weather and ice buildup. I got some touch-up paint to fix it in the spring. So far, I really like the aluminum body, which is why I chose it. It's definitely the way to go.
The truck has 103,000 miles on it and it's from Buffalo, NY.
I treat it with Krown every fall. I have a spray gun with a 5-gallon container and pump for the fluid film. I spray it whenever the truck is in the garage.
For a truck that's 9 years old from Buffalo, it looks fantastic.
A month after I bought it, I forgot to secure my trailer hitch (I can’t believe I did that), and the trailer smashed into the tailgate. It damaged the tailgate completely. I did all the repair work myself and then took it to a local shop to repaint it. You wouldn’t even be able to tell that any work was done, even with a magnifying glass. After 9 years, it still looks great, so I don’t buy into the idea that a repair is an issue on aluminum bodies.
The body and frame have been perfect. But I could go on and on about other issues other than frame and body work.
The truck has 103,000 miles on it and it's from Buffalo, NY.
I treat it with Krown every fall. I have a spray gun with a 5-gallon container and pump for the fluid film. I spray it whenever the truck is in the garage.
For a truck that's 9 years old from Buffalo, it looks fantastic.
A month after I bought it, I forgot to secure my trailer hitch (I can’t believe I did that), and the trailer smashed into the tailgate. It damaged the tailgate completely. I did all the repair work myself and then took it to a local shop to repaint it. You wouldn’t even be able to tell that any work was done, even with a magnifying glass. After 9 years, it still looks great, so I don’t buy into the idea that a repair is an issue on aluminum bodies.
The body and frame have been perfect. But I could go on and on about other issues other than frame and body work.
Last edited by danskool; Nov 20, 2025 at 10:04 AM.
The frames do sometimes rust out. Not sure why it's only on some. Newer trucks have drain holes in this frame. Is it a matter of dirt holding moisture? This guy lives in FL with a rusted out frame, and shows the drains on newer frames.
I drilled matching holes in my '16. It's pretty clean inside, so I'll use cavity wax inside the frame and boiled linseed oil on the outside of the frame.
The frames do sometimes rust out. Not sure why it's only on some. Newer trucks have drain holes in this frame. Is it a matter of dirt holding moisture? This guy lives in FL with a rusted out frame, and shows the drains on newer frames. https://www.youtube.com/watch?v=Y0H4P9lBHNc I drilled matching holes in my '16. It's pretty clean inside, so I'll use cavity wax inside the frame and boiled linseed oil on the outside of the frame.
Denny















