used motor oil sprayer

Has anyone here effectivly sprayed used motor oil on the underside of their vehicles as a rust inhibitor? I tryed a garden sprayer but the viscosity was too high to work properly. Im thinking, fueloil furnace pump & modified nozzle. Im sure that 1 or more of you guys has done this successfully.

This might work.
http://order.harborfreight.com/EasyAsk/harborfreight/results.jsp
The undercoat these guns shoot, like 3M "Body Shutz", is quite viscous. It's a lot better than motor oil for undercoating, but a lot pricier as well.
On 28 Sep 2004 19:51:46 GMT, snipped-for-privacy@aol.com (Wwj2110) wrote:
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||On 28 Sep 2004 19:51:46 GMT, snipped-for-privacy@aol.com (Wwj2110) wrote: || ||> Has anyone here effectivly sprayed used motor oil on the underside of their ||>vehicles as a rust inhibitor? I tryed a garden sprayer but the viscosity was ||>too high to work properly. Im thinking, fueloil furnace pump & modified nozzle.
I use used motor oil to renew the crosstie retaining walls on my property. Keeps them looking new , and keeps the bugs & rot away. I apply it with a simple air siphon sprayer made by Milton. Costs abut $15, lasts forever, and will spray most anything up to latex paint (but don't do that!). It comes with a 10-ft vinyl hose. Drop that in a jug of oil and press the trigger. Wear a mask or respirator, you don't want to inhale any of the aerosol oil.
I suppose you could also use an airless paint sprayer. Texas Parts Guy

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When I first saw this subject I immediately thought of spraying used motor oil on a dirt road. I'd like to go it, but understand that it is against the law.
About the original post: Yes it would be an effective rust inhibitor, I know the oil pan on my PU isn't rusted at all ! <grin> Most people try to stop oil from getting on the underside of their vehicles because it means something is leaking that shouldn't be. Wouldn't spraying it with undercoat be a better option? I know it would last longer.
Lane

On Tue, 28 Sep 2004 17:55:13 -0700, "Lane"
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What about if you were to haul a leaky drum of used oil and "accidently" coat the road surface? Probably have to do the clean up thing
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It must either be pre '90s or less than five years old.
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Gerry :-)} London, Canada

I've heard of guys doing it. My 2 cents is to put a screen/filter on the pickup to avoid the carbon/rust/debris from plugging your jet or, alternatively, filter the oil before loading the undercoating cannister or whatever people recommend.
Also, my bet is a scavenged hydraulic pump would work, but that's purely speculation.
--G--
On 28 Sep 2004 19:51:46 GMT, snipped-for-privacy@aol.com (Wwj2110) wrote:
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Sand blaster!
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Sounds good, spraying oil that has acids in it, to stop corrosion. I've used chainsaw oil mixed with WD40, and a wd40 spray bottle. Pat
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viscosity