Aluminum radiator

[dmjlambert]

That is the radiator I put in. I don't know about corrosion on the outside, I would be interested to know also. For corrosion on the inside I wrote an email to ECP a while back and asked them if the stuff I read on the internet about sacrificial anodes is a real thing, and they wrote back and said yes and suggested I get one. I got this one: https://www.amazon.com/dp/B001GR09S4/
I don't know what it should look like after being in the truck for a year. I went and pulled it out just now and this is what it looks like. I don't know if this shows the sacrifice is happening. Poor picture, sorry about that. I was trying to take a picture with one hand and plugging the hole with my finger and making a mess. The anode has a brown coat of stuff. I run 2/3 coolant and 1/3 water, and have a coolant reservoir, so I probably don't have a very corrosive environment in there. Do you plan to use a sacrificial anode?