It looks to be in perfect shape. zero bent fins and I pressure tested it to 25 psi.

But its oily inside. The side tanks are plastic and I think the core is alluminum, but its painted so I cant be sure.

what can I use to clean the oil out.

I could be wrong but wont the oil act as a insulator.

 

Just fill it full of mineral spirits or a mixture of water and "purple" degreaser. Shake it around and rinse it well, should be fine. I wouldn't use laquer thinner as it may be too harsh on the plastic(if it does have it).

 

That''ll work too......Simple green and water seems to work pretty good to....FYI

Brad

 

I just use gas. out about half a gallon in it. Shake the **** out of it for awhile. then dump it out. Then get an ait compressor and blow it till it's completely dry.

 

I used to use gas in my DSM intercooler It worked excellent i just put the gas and and shook it around for a bit then rinsed it and all the oil was gone