Rusty oil pan/transmission pan

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I was changing my oil and noticed that the oil pan on my 10 year old Mitsubishi Eclipse is very rusty as is the transmission pan. There is no rust through or leaking on either one so the metal is still good. Would I be able to spray those with a rust converter and then a heat resistent paint? Or go over it with POR-15 and then spray with heat resistent paint?
 
I used regular spray paint on my transmission pan. That was in September and last time I looked at it it looked OK. I had the pan off when I refurbished it. I just wish I had a sandblaster at the time. I think I would use something more appropriate for a hot surface if I were doing the engine oil pan.
 
Don't waste your time, you cant stop it or even really slow it down for that matter.
Been there done that, got the T shirt on quite a few cars.

Changing it is the only real fix. If the OEM has known rust problems with the pans like GM 3800 Gen II go with an aftermarket one if possible, they usually hold up better.
 
I will give it a try and see what happens, if they are going to eventually need to be replaced anyways, might as well experiment to see if I can buy some time.
 
An easy thing is 2 coats of Loctite Extend. Its kind of a rust treatment and coating in one product. I would not worry too much about heat. Certainly the oil pan gets hotter than I want to touch, but its not like the side of the engine or a BBQ or exhaust pipe.

Loctite has a good reputation. I have used it on several items. Two coats are needed. There is a timing between coats, something like within 1 hour or more than 1 day.
 
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