Join Date: Aug 2007
Location: So. Ca.
Car Year: 2008
Car Model: Forester 2.5X Prem
....if you’re interested in cleaning it up, I would just wipe up what you can with paper towels and then use a good all purpose cleaner that is safe for this sort of thing. Simple Green is "ok" but it does have the potential to accelerate corrosion of bare aluminum parts. If you are going to use it, I would dilute it as recommended and not let it dwell more than a couple of minutes (being careful not to allow the solution to dry up). If you have gentle brushes at your disposal, I would use those to help agitate cleaner on the areas that you can reach. You can then use a slow, steady stream of water to rinse the engine bay thoroughly. Covering potentially sensitive areas is up to you. ….you can use plastic baggies or something similar for this. Personally, I have never had a problem although I am quite careful not to shoot water into areas that may have issues if it found its way in there.
btw, Pro HD and Aircraft Precision Cleaner are two cleaners SG makes that are safe for aluminum. If you were going to use their products for this task, you would be better off choosing one of those if they are available to you.