The situation is...
Last year I bought a 2016 xlt and promptly drove it to get sprayed (rustcheck). Did it work? ...No, It didn't work! I had rust on almost everything exposed. Also, it dropped oil for a month after the spray. ...got rid of it (for other reasons)
I recently purchased a 2017 Lariat and I want to protect that beast.
Is there something that balances both those needs? Anyone try another method in and around the Southern Ontario where salt and other chemicals seem to be getting a little more corrosive?
Thanks for your input!
iJet

 

My truck has held up to MI winters well after getting the Corrosion Free treatment applied at a Canadian Tire in Windsor. It's a bit thicker, so there is almost no dripping and it seems to hold up well and prevent rust.

 

Fluid Film works great.

 

I'm about to get mine sprayed also. My dad always got just a light oil spray, and his vehicles never seem to rust. (SouthWestern Ontario), the trick is to get it sprayed in Aug or September, to give the oil time to seep into all the cracks and crevices. Warm days in Aug and September will actually make the oil creep and travel & bake in to the metal.
Hopefully it won't be a bad winter, but it did snow in Quebec already last week. yikes.

 

I just had Krown done... underside only.

 

Wooooo Colorado land of getting sand blasted all winter!!!!!!!!!! yeah it's not much to be happy about.

 

I'd be inclined to do nothing on a modern car.

especially an AL body F150.

I mean modern steel in the frame will get some surface rust - but it won't go deep for years (decades). This isn't the 1980's so I would expect it to last better.

Otherwise I would look into a proper full coat under coating on the truck. I mean the stuff they spray at the factory on some cars - used mostly for sound deadening - as it's a tough plastic coating under all seams, joints, and the whole bottom -

but that's expensive to do and honestly I wouldn't. I guess look for a 2015 model in your area that's never been coated and see how it's doing.

 

Underside only... The frame is still made of steel. Plus, you get to stay out of trouble with your factory warranty.

Also, keep in mind that although the AL body won't rust, it will oxidize at some point.

 

Krown here. Only had it done on my 2016 so I can't say for certain whether it's been working 100% but for the cost, I'd rather do it and have it slow down corrosion than not do it.

Now if you're someone who keeps vehicles for 5 or 6 years and flips them, I wouldn't bother.

 

Corrosion Free - full treatment. There will be parts inside doors etc. that are not aluminum that need to be protected in addition to the steel frame beneath. Brake lines are now corroding more frequently due to the liquid salt now used. Have heard bad things about application of this product at Canadian Tire - can recommend Jeff at Attention to Detail in Oshawa, Ontario. Book early.