What to use to clean (not polish) the valve cover?

Does anyone have a suggestion(s) on what I can use to clean my valve cover? I don't want to polish it in any way, shape or form - I just want to clean (or degrease, if you prefer) it so it looks like new. I'm thinking Simple Green might work well, but I think I've heard some people say that causes streaks?

Is it just cast aluminum only or is it also clearcoated?

Thank you,
Ed

 

In my shop the only product I buy for cleaning and degreasing auto parts is Purple Power. Works great, and doesn't damage any metal or plastic parts.

 

Do NOT use purple power on aluminum. It will streak it. I had to polish the tanks on my brand new international prostar for putting purple power on them. Use simple green.

 

That is strange because I have used PP for 3 years in my shop alone, on everything from steel to plastic and aluminum, with no problems at all.

 

I don't know if it removed the clear coat, or etched into the aluminum.. I was cleaning my truck and used it when I was done the tanks were no longer shiny.. They turned like a milky white color with streaks all down them. Had to Polish them. You can still see the streaks if the sun hits it just right.

 

what "tanks" were you cleaning? Did you dilute it when you started? Rinse immediately after cleaning? I've just never seen that on aluminum. I guess something to consider, but I have never had a problem personally.

 

Get a bucket of hot water, get a rag or sponge, wring out excess water, & wipe clean. Dry with what you've got...

 

I was cleaning the fuel tanks and the frame. I sprayed the purple power out of a garden sprayer undiluted then went right behind it with a steam pressure washer.

 

Hm. Very strange indeed.

 

I've been looking at SONAX products and I know their product line is held in very high regard by professional auto detailers. I decided to e-mail them and ask for their advice, and they said...

"I would try either the SONAX Engine Cleaner (543200) or the SONAX MultiStar (627400). Both are alkaline based cleaners with no solvents or harsh acidic chemicals. Neither will damage the clear coats on the valve covers.
In 2015, we will be offering the SONAX Chrome & Aluminum paste for tackling this very issue. Great polish that is a best seller in Europe."


Ed