spraying oil

[PromiseKeeper]

Have any of you sprayed the underside of your truck with used motor oil as a rust inhibitor? What kind of sprayer works best? Thanks!

[1980c10]

I haven't, but have heard of people using bar and chain oil through the winter months on plow trucks. A spayer that would work would be a sprayer used for (concrete) form oil.

[zieg85]

I had an old Ford F150 with a 5.0L that the rear main was out.  It coated everything real nice, even the rear end.  It wasn't rusty at all underneath

[Da67goatman]

you can use a pesticide or weed killer sprayer.  Pump it up and pull the trigger, pretty cheap too.

[Blazin]

I use a rocker shutz gun with a hose into a 5 gallon bucket. I made a couple adaptores out of 3/8" brake tubing that thread right into the front of the gun. Set the regulator about 20 to 30 PSI. I have mixed 1 gallon of bar, and chain oil to 4 gallons of waste oil but have also just used waste oil. I spray inside the doors, fenders, cab corners etc. too.

[VileZambonie]

There's better ways of rustproofing

[1980c10]

Transmission fluid sprayed into the rustproofing holes is also pretty common.

[Blazin]

You don't want to use ATF it will eat all your rubber bushings.

[rwhit57]

I notice most of you guys are up north where you see a lot of salt, snow etc. so I understand your concern. I would think that spraying oil on the bottom of a vehicle would be a magnet for stuff to stick it, making it real hard to keep clean. I have to agree there are better methods to prevent corrosion.

[PromiseKeeper]

Vile,
Would you please tell me about them? Thanks!

[Blazin]

If your driving it in the winter keeping the salt from getting into the crevices etc. is more important than keeping it looking clean. When i spray a rig I then drive it up and down every dusty dirt road around. Dust sticks to the oil, and forms a nice cake like coating.

[VileZambonie]

Use body shutz

[jdl71]

Mine leaks enough atf and motor oil no further coating is needed. 

[PromiseKeeper]

I understand that shutz is good stuff....then I saw the price! I know...you get what you pay for, but paying for it is the problem!

[HAULIN IT]

You can't beat oil for older vehicles that already have dust in the seams & tight areas, it's thin enough to run down in & turn the dust into oily mud where as the commercial "rustproofing" bridges the gap never getting to where it's really needed. Also oil doesn't care if the inside of the panel is clean where a regular rustproofing won't stick.
I use a regular pistol squirt can to put the oil inside the panels...they have enough pressure to squirt to the other end of the panel & can be stuck in a rather small hole.
I "recycle" the oil every time I change it...take 4 1/2 quarts out & put 1 1/2 back in the body Makes the wife crazy that the bottom areas are smudged with Black goo, but it beats rust.
The "everything sticking to it" is much of what makes it work so well, just as mentioned, a thin layer of Black "mud" forms over the surface & the next application soaks right in. Lorne