Yes, I am Curious Newbie. 
1. After changing various oils, how do you dump them? Bring them to the nearest autoshop or just keep them?
2. Today I found the underbody and engine compartment are very oily and cover with mixture of dusts & grease. They say "Purple Powder" is very good for removing them. However, where is the proper place to wash them out? Think about my driveway but it is not good spot because I don't want cover my driveway and neighbor's with the oily liquid.
Then, Self Washing facilities??
1. After changing various oils, how do you dump them? Bring them to the nearest autoshop or just keep them?
2. Today I found the underbody and engine compartment are very oily and cover with mixture of dusts & grease. They say "Purple Powder" is very good for removing them. However, where is the proper place to wash them out? Think about my driveway but it is not good spot because I don't want cover my driveway and neighbor's with the oily liquid.
Then, Self Washing facilities??