Earlier quoted context omitted.
When you say they used "vegetable oils", do you mean they used a vegetable oil bought from the grocery store, or that they used one of the blended biodegradable oils specifically made for chainsaws? I've used both the Stihl Bioplus ( https://www.stihlusa.com/products/oils--lubricants-and-fuels... ) and Husqvarna XGuard ( https://www.baileysonline.com/husqvarna-x-guard-bar-chain-oi... ) for a couple years now, and hav…
I'm not familiar with chainsaw oils specifically, but there's a similar trend in gun lubricants, where many (non-military) ones are vegetabe oil blends with additives that are supposed to prevent gumming etc; I suspect these are very similar, if not the same compounds. There is still an ongoing debate on whether these are good enough etc. On one hand, some people swear by them, and non-toxicity is especially nice whe…
Vegetable Oil for Lubricating Chainsaws (2008)
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Re: Vegetable Oil for Lubricating Chainsaws (2008)
#82Tangentially related: Boston Dynamics' BigDog, which utilizes hydraulic actuators, would constantly leak hydraulic fluid while operating, be it through normal weepage or catastrophic leaks (e.g. burst hoses). Initially, they used petroleum-based hydraulic fluid, but as they began to operate out in the woods etc, this proved to be untenable, so they eventually switched to using a vegetable-based hydraulic fluid that w…
The more traditional kind of dog leaks all the time as well
Re: Vegetable Oil for Lubricating Chainsaws (2008)
#83Re: Vegetable Oil for Lubricating Chainsaws (2008)
#84Re: Vegetable Oil for Lubricating Chainsaws (2008)
#85Earlier quoted context omitted.
Isn't a certain degree of gumming-up advantageous? It would keep the oil in place after it works it's way into all the nooks and crannies, ending up more like a grease. This behaviour could be good for corrosion prevention.
You want your oil (and grease) in the bearing surfaces, not in nooks and crannies. Tackiness can indeed be good though.
Re: Vegetable Oil for Lubricating Chainsaws (2008)
#86Earlier quoted context omitted.
Indeed, gas engines probably drip or exhaust more oil. Certainly 2 stroke chainsaws. There's a rumor among cyclists that "3 in 1 oil" is bad for bikes because it contains vegetable oil that gums up. But cyclists will debate about oil for days.
Isn't a certain degree of gumming-up advantageous? It would keep the oil in place after it works it's way into all the nooks and crannies, ending up more like a grease. This behaviour could be good for corrosion prevention.
Re: Vegetable Oil for Lubricating Chainsaws (2008)
#87Earlier quoted context omitted.
Indeed, gas engines probably drip or exhaust more oil. Certainly 2 stroke chainsaws. There's a rumor among cyclists that "3 in 1 oil" is bad for bikes because it contains vegetable oil that gums up. But cyclists will debate about oil for days.
That's a very strange rumor since 3in1 is petroleum-based.
https://www.concept2.com/files/pdf/us/miscellaneous/MISC_MSD...
The closest thing I could find to mentioning vegetable oil was this thread:
https://umgf.com/three-in-one-oil-substitute-t37605.html
But the claim is without a reference, and the MSDS certainly appears to be the latest word.
Re: Vegetable Oil for Lubricating Chainsaws (2008)
#88Earlier quoted context omitted.
Some vegetable oil oxidizes much faster than some other. Sunflower oil oxidizes rather quickly, olive oil I haven't noticed oxidizing yet.
According to this chart, Olive oil has 12 times more oxidative stability than Sunflower oil! Coconut oil has the highest oxidative stability due to its 92% saturated fat content: https://olivewellnessinstitute.org/resource/showdown-what-is...
My experience at low temperatures is that the difference is much bigger than in that test. A thin layer of sunflower oil takes a week or two to turn into hard to remove sticky goo, olive oil... basically doesn't seem to do that at all.
Re: Vegetable Oil for Lubricating Chainsaws (2008)
#89Some of my scuba diving friends go ice diving in Canadian lakes. They use chainsaws to cut access holes through the ice, and always lubricate those chainsaws with vegetable oil so as not to contaminate the water with petrochemicals.
Re: Vegetable Oil for Lubricating Chainsaws (2008)
#90Earlier quoted context omitted.
Cyclists debate about oil for days. Cycle mechanics just use WD40.
WD40 is a penetrant, not a lubricant, I don’t know any Mechanics who use it. Definitely will debate lubricants for days, but no one who is in the industry uses standard WD40