Some safety thoughts.
Use PVC heavy duty oil and chemical resistant gloves when spraying solvents such as Brake Cleaner or Carb Cleaner.
Those are nasty chemicals that can cause nerve damage through inhalation or skin absorption.
Maybe also a filtered gas mask, so you dont inhale the fumes.
I am trying to use Biodegradable Oil Degreaser now, and Simple Green.
I know these are water based, but they are better for the environment.
Ill make sure to use WD 40 to blast out the water when done.
WD 40 is bad too, but mostly petroleum based, just dont want to get it on your skin or breathe it in.
I think its a little bit less toxic than Brake Cleaner or Carb Cleaner.
Both these cleaners are available at Costco for very cheap.
They are full strength and can be diluted for household use.
I used them full strength, and also used the degreaser to clean my driveway of oil stains after.
I also used puppy training absorbent pads on the ground to soak up oil.
They are similar to diaper material and can hold a lot of liquid.