Grumpycat
Veteran Member
How does this work? Sounds interesting![]()
Mercedes-Benz is known for routing the dipstick tube all the way to the bottom of the crankcase. Suction on the dipstick tube will cleanly and efficiently drain the oil.
Would be nice if other manufacturers would do the same for the dipstick tube. My Outback's drain is in an inconvenient location and large enough in diameter to let too much oil gush out too quickly making a big mess. Subaru guys who have been inside the engine say the dipstick tube doesn't reach to the bottom, that one would have to insert an extraction tube to suck oil out. As a result I fitted an Fumoto valve underneath. Attach 1/2" OD vinyl hose. Open the valve and let the oil drain without splashing.
Also put a Fumoto valve on my (former) 2008 F-250 Powerstroke. Drain was centered in crankcase pan. Way high in the air. Again, big splash when 15 quarts fall out. With the Fumoto and a short section of vinyl hose I could crawl under with (4) empty gallon jugs. Place one under the hose. Open the valve to fill. Repeat until empty. No mess. No cleanup. All the oil was drained directly into jugs for disposal. No tools. Just one sheet of paper towel to wipe things clean.