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Living in the Northeast and experiencing salty winter driving, my last truck is rusting away. A 1996 with 70k has rusted oil pan, brake lines, gas, lines, transmission cooling lines, etc.
I just bought a used 2003 and I want to keep this truck from rusting.
Someone told me to spray diesel fuel underneath, because it has a lubricate in it.
I need some good advice.
When I was in college back in the late 80's a fair amount of the locals would spray the under side of their vehicles with used motor oil. One person that does this owns a junkyard I have been going to since 86. He has a 66 F100 that he has had since new and has always sprayed the oil under it and still has a solid underside.
One a side note all of his yard trucks, including the wrecker are 61-66 vintage. He also has a 55/56 F5, and a 37 or 39 Ford PU that he has owned since the late 50's. I call this place Leave it to Beaver land due to all the 50s/60s cars in the place
My suggestion is to get it into a garage for a while and paint it with POR 15 a rust inhibitor. It is 40 dollars a quart but definatly worth every penny. Try this with old clothes, latex gloves, safety glasses and if you get it on you be ready to look at it on your skin for a week or two. I hope this helps. You can purchase that on the net.
used motor oil dilluted with kerosene works well to prevent rust. the best way to apply it is get a pump sprayer for spraying pesticide and mix 5 quarts of used motor oil to 1 gallon of kerosene. take a pressure washer to undercarraige and try to get all of the mud and crud out. then let it dry good and spray. it is a good idea to do this process two times a year.
Call me crazy but a can or 2 of cheap spray paint applied to the areas after they have been wiped down works very well, last longer than the oil and will not mask any oil leaks that may develope.
I've used oil myself and was told to always use used oil/grease- not new. But i would never do that to a daily driver or something i would want to work on. POR 15 works best on established rust once cleaned and killed with the other stuff they sell. I think that eastwoods stuff may be better and will stick to non-etched surfaces which is what you are dealing with. The main thing is to wash the rig a lot to include underneath.
In montana they use a solvent on icy roads that eats everything and rocks instead of sand to make sure the window repair places thrive.
used motor oil dilluted with kerosene works well to prevent rust. the best way to apply it is get a pump sprayer for spraying pesticide and mix 5 quarts of used motor oil to 1 gallon of kerosene. take a pressure washer to undercarraige and try to get all of the mud and crud out. then let it dry good and spray. it is a good idea to do this process two times a year.
used gear oil work better because the additves in it attacks rust and it resists whash off better too. I have been used used gear oil in a spray paint gun on a compressor for over 20 years now and it works great on plow trucks too and their plows. You can look at one of my plows that is 11 years old now and the frame and plow is not ate up with rust. I spray them at start of season and again at end and sometimes once during if it is a "bad" long plowing season. I soak under sides of trucks and inside fenderwellls and doors too. Thre frame on my 79 J20 Jeep P/U is still about 99% with little rust and body is not gone either because of these treatments. It helps prevent brakeline rustout too if you soak them too.
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