I seem to remember a post once in which someone said they would apply some amount of used engine oil on some of the small rust spots to keep them in check and to protect from further corrosion. I couldn't find it in the search, but maybe someone knows....

I'm just trying to keep it under control through the winter!
Thanks

Rust is a pet peeve of mine, and I've been playing with rustproofing for over 30 years. I too tried spraying motor oil over the underbody and doors once. Used, new, it doesn't matter. A friend of mine turned me on to it. I didn't like it. It dried/washed out before winter was over leaving the car prone to corrosion. I stick with regular rustproofing compound. I use Texaco rustproofing compound.

I've written a lot on this subject. You can search using the keywords "Texaco" and "rustproofing".

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95 E320 Cabriolet, 159K

You want to stop rust, use POR-15. Nothing will get through this stuff. Be sure to use disposable bruches because they will be shot after using this stuff. I once tried to clean up a braush with paint thinner, no luck. I even left the brush sit in gasoline for over a week, and it still was hard as a rock. Short of cutting out the rust, POR-15 is your best bet.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member

Hey Agplate,
I just used Waxoyl rustproofing compound on my work truck. I like it as it seems like it will hold up well. Its kinda nasty to apply as it sprays on and a nice coating gets on whatever you are working on and a good bit ends up on you too. I got it from www.propermg.com I got the 2.5liter pressure can, the 5liter refil can and the sprayer for @ $100. That was plenty to do a excab longbed truck so a MB would take less. Hopes this helps. RT

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When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K

Only one way to defeat salt: Park car in garage in fall, lock door, hide key until spring. Works every time.

Drive a beater for the winter that you don't care if it rusts.

P E H

Thank goodness I live in the south. When we get our two or three little snows (take or give a few) from December thru March- ones that require salt on the road- I hate to have to drive my cars in that - even in one trip to town. I guess everyone else does as well, as the next day- when the road dries- everyone floods to the car washes. The low annual snowfall here, keeps rust at bay on cars around here. I do not know how you northerners stand it. I have heard of cars 2-3 years old up north rusting. My great aunt lives in Detriot, MI. She bought a brand new Cadillac in 1977. By 1979, that car had all but rusted away. Down here- those cars are still rust free, unless a "northern" model made its way down here. That is usually the case- the cars with rust here are usually originally northern cars that made their way down here. Also- some rust can be caused from the climate here, but it is from high humidity and damp conditions, as the southeast is typically the wettest and most humid part of the country and that can cause some cars to eventually rust.

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2004 Toyota Sequoia Limited 4wd
1991 Lincoln Town Car Executive
1991 Cadillac Sedan DeVille
1988 Mercedes 300SEL
1972 Chevrolet Caprice Kingswood Estate 9-passenger wagon
1973 Pontiac Grand Ville
(Prior MB's: 1974 240D, 1985 380SE, 1984 190D, 1993 400SEL)

somebody always has their Morris Minor apart and is "...Waxoyling the wings".

thats how you tell the difference between a yankee and a damn yankee.