Chainsaw cleaning

Hello there.

Since Helene my 361 been working hard. Unfortunately I've neglected giving it a thorough cleaning. There are some bar oil caked on it mixed with some dust. Now I want to give it a real good cleaning. Compressed air is not touching some of hard grime. So I was wondering if I can use simple green or maybe purple power to give it a good soak and then blow it all off with air. If I remember correctly purple power full strength is not good for aluminum, is that correct? What would you recommend, or what have you used before with good results?