Thanks all.
Paul,
As for the vegi oil, there was a discussion about that on the Carvers Forum. Seems as though it was very problematic. Don't recall exactly why but....
And Lobo,
Blowdown is correct. With enough green matter in the mix, small wood chips like that will break down....and fairly quickly if you turn the pile often enough. Honestly though, I haven't actully put chain saw chips directily in the compost pile....just flower beds (have put lots of shredded wood in though). I believe there is enough oil in the chips to affect things. Probably shouldn't even put them in the flower beds but I do anyway,....hesitantly.