This is what we use everyday the best tool for oil service.(for shop use)
you can find it at www.northerntools.com
6 Gallon Oil Extractor has Powerful Suction Capacity
Clean, easy, safer way to remove 70° to 176°F oils and fluids through dipstick tube or other convenient openings. Great for car, tractor, boat and small aircraft engines. Also for industrial gear boxes, coolant and hydraulic systems. Temporarily uses your compressor to extract about 2 quarts per minute. 6 gallon reservoir has 4 gallon rated suction capacity with a single charge. Rolls to job site. Easy to empty. You get oil level gauge and handy probe holder. Six metal and flexible probes included. Not for use with fuel, flammable or corrosive materials.
Ship Wt. 50 lbs. Item# 109521
Discount Price... $399.99
if you are shop owner buy one for the shop.
MB STARS Master Guild Technician,12 years MB tech
6 years independent shop owner