l1dws

I was wondering what products you are using to clean the undercarriage of a C5 and also the suspension parts. Thanks

Sunset-C6

Soap & water works great, or your favorite all purpose cleaner.

0Killrwheels@Autogeek

P21S Total Wash

Zorlac

Some folks have a thread going that are using NAPA Aluminum Brightener on suspension and other aluminum parts. I haven't tried it but the results look very good.

l1dws

Thanks everyone !!! I'll check out the options and report back

Boomer111

Just remember with the Aluminum Brightener to get the aluminum wet first and start at the bottom and work up.

This is for concentrated formula, I am not sure what concentration the Napa stuff is.

When trucking the fleet used 55 gal drums of concentrate so we could mix our own strength.

It will turn polished aluminum into a milky white color.

l1dws

Thanks Boomer I'll check it out. the last thing I want the suspension to turn milky white...thanks

12zo

Second for P21S Total Auto Wash. Impressive cleaner and really brightens aluminum. Plus it's safe and that alone is the best part.