Simple Green for wheel cleaning?

[BYprodriver]

When I was rebuilding my engine I used Simple Green to clean it not wanting to discolor it. (case & heads)

It does discolor the engine. Later found Aviation grade Simple Green that does not discolor the engine, but it is more expensive & hard to find locally.

So depending on what the wheels are made of you might not want to use S. G. on wheels, or any soft grade aluminum.

[flouese]

I use Simple Green (SG) to clean my undercarriage. Get the car up as high as possible, remove splash guards, spray SG everywhere, connect a rainbow type lawn sprinkler up to your hot water tank, place it under the car and go. Nice and clean.