So would spraying on used motor oil do the same. I spray down my wood splitter for years with motor oil. I guess thats why it still looks like it just got out of the showroom at 10 yrs old
Only issue I have with used oils is it's nasty stuff, carcinagins, carbon and nothin good. Fluid film is wax based wich causes it to kind of shell over at low temps.
I don't need rust protection here but this topic came up on another forum. This was highly recommended: Rust Protection and Proofing | Auto Care Services | Ziebart
Been there, done that, won't make that mistake again. They charge 10 times what it costs me to get oil spray done...and then you have to take it back every year for them to "inspect it"...they charge you a mandatory "cleaning fee" for the privilege...was $100, I'm sure its more now. Its just old school undercoat, nothing special...they guarantee no rust, but when the rust comes (and it will, sooner or later) they just give you your original fee back...but by then you have paid much more than that in cleaning fees, they made their money, despite the "refund"
There's that and also that it was barely better than doing nothing per the testing referenced in Post 17 IIRC. It would be better to recycle the used motor oil.
After my last truck rusted away, I had this done when I purchased my new 2019 F150 along with the Rhino bed liner. I do go for the yearly inspection and reapplication on any cracks or what not. It's $50
Wish I’d known about this stuff years ago. I blame that pretreatment they put down as much as the salt. My last truck was ruined by completely rusting out. I just sprayed down my brand new one with several cans of fluid film. The last straw with my 12 year old Silverado was when anything involving the front end required a torch and replacement hardware, replacing pads would take hours and everything I looked at was gone. Salt water boat ramps didn’t help anything either, hosing it down just wasn’t enough. Rear fenders rusted out as well. Hopefully this aluminum body f250 lasts longer especially with hitting it with fluid film once a year or so.