Well, according to the folks over on arboristsite, and other places I've looked... [/quote
Collectively, comments from the aborist site are no more, and no less accurate then anecdotal comments made in many other forums, saw related and not. If you believe everything said there is rock-solid credible, you're suffering from the "false authority syndrome." By the way, I've made many comments on that forum - so there goes the credibility factor.
Gooserider said:
1. EVERY saw maker will instantly void your warrantee if you use waste oil...
That is just pure BS. First, you are not going to find somebody that's qualified to comment on what every saw maker in existence does - in regard to hardly anything. I did a lot of warranty work for Stihl, Homelite, Bobcat, Honda, and John Deere going back to the 1960s. At least at that level, I've got a very good idea on how some warrantees are handled. If a company screws a dealer and tries to weasel out of warrantees, the dealer is apt to take on a different product line. It usually behooves everybody to try to work together and be fair. In most cases that I have first-hand knowledge of - if misuse of a product leads to a premature parts failure - the company will not warranty that repair. But, let's say you have a new saw and used waste oil in the oil tank, and a clutch shoe broke, or an engine blew up, or a pull starter broke, or an ignition module failed - few reputable companies are going to void that warranty. There has to be some credible cause-and-effect. Taken from my new Makita warranty book - "Makita may deny warranty coverage if your engine or a part has failed due to abuse . . "
Gooserider said:
2. MOST saw shops will charge extra if you bring them a saw where waste oil was used
Right. And who is this authority that knows about "most" saw shops?
Gooserider said:
3. It is worth noting that waste oil is considered haz-mat, and the EPA and friends don't appreciate that being sprayed around the woods, or your back yard...
Yeah, and I, in turn, don't "appreciate" the EPA allowing many other harmful things that I come in contact with on a daily basis that I have no control over. On the roads, in the air, in the water, in plastics, in building materials, etc. The EPA is a government boondoggle - sometimes doing good things, sometimes just being asinine, and sometimes doing things just to look like they mean well.
Gooserider said:
4. It is worth noting that waste oil is a carcinogen and otherwise unhealthy to breath or have contact with
So is car exhaust, exhaust from power plant chimneys, jet travel exhaust, gasoline, most garden fertilizers and herbicides, deep fryer oil, potato chips, etc. I figure I'm already doomed since I've spent most of my life with my hands and arms covered with "dangerous" grease and oil - and also still eat potato chips. I also change my own oil in all my cars, trucks, and tractors and do NOT wear a hazmat suit.
My comments about bar oil are about bar and chain wear - and not much else. As I said earlier, I don't dismiss environmental concerns - that is a different issue. But, if you truly care about the environment, there are much more meaningful issues than the use of waste motor oil for bar oil. Speaking for my personal lifestyle, overall, I tend to have a lower negative impact on the environment than the average person. So, maybe - I can do what Al Gore does and claim carbon-credits for myself - use old oil for chain oiling, and still look good.