Oil in the hole.

[Fred1956]

I just use an old 90wt. gear oil bottle and cut the bottom off and use it like a funnel.

+1..............

 

[SpeedyManiac]

FYI Canadians, Canadian Tire carries this funnel for around $9 I think. I had to trim the end a little bit to make it fit but otherwise it works great. Seeing Clay's though, maybe I need to machine a threaded adapter to fit on it...

I was over at the auto parts store picking up a new IR impact gun and saw this for ~$5

Measure, pour, on/off valve, and a cap on each end so it doesn't get dirty.
<edit> oh, and there's a filter screen in there too.

Hopkins FloTool 10704
www.hopkinsmfg.com

I'll let you know how it works.