8V71 Oil Change Surprise

[gus]

Couldn't get the plug out so pumped it out via the filler. Got about five gal with the tiny pump.

Surprise was the amount of oil that drained out when I loosened the spin-on oil filter after pumping out the pan.

Haven't yet figured out where all that came from, around a couple of quarts?

[Iceni John]

Now would be a good time to fit a Fumoto oil change valve in the drain hole.   When you get used to using a Fumoto, you'll wonder why you didn't put one in sooner!   Drawing samples for oil analyses is also easy and clean.

John

[luvrbus]

Only bad thing about the Fumoto if you don't remove it every time after draining it leaves oil and the sludge in the pan.I have saw some nasty looking pans inside when I removed the pans with the Fumoto valves 1 was mine lol so I don't trust 1 very much for a oil sample

[gus]

My big problem is I can't remove the plug, I don't have the nerve to put a lot of torque on it since I know all about ripped out drain valve flanges!

Oil for analysis is supposed to be drawn from the center level, not the bottom.

[luvrbus]

I very seldom pull one from the pan at any level always from a galley port.I will pull one from the plug when I suspect a problem it shows there in a hurry 

[Lin]

interesting-- would a sample from the bottom be okay if it were taken immediately upon shutdown?

[gus]

Lin,

I think the problem with bottom samples is so much crud collects there over time that it causes false analyses.

After about half the crankcase drains out is a good time to take a sample. I'm basing this on oil analysis company instructions, not my vast knowledge:)