Used oil for chain lube

I have lots of used oil in the garage, my mate advises me never to use old oil on a chain. but will it do any damage if i use my old oil on the chain? Its not going to be used in a Scottoiler, if that makes any different.

[Dave20046]

I believe hovis is suggesting a search. I think old oils fine in a scottoiler. I don't have one but occasionally run my chain through old oil before using lub/wax


Hovis's sig: where do we find the ar poll & why the hell do we have to decide a year early?!

Edit : infact in reflection I guess it helps with organizing it!

[jambo]

http://forums.sv650.org/showthread.php?t=138222

While the title of the thread is slightly different, it's discussed at length at the end of the thread.

Jambo

Hitler it may be, but its very hard to search for oil related topics as 'oil' is too short a word for the search.

I did search couldnt find anything useful, they only say about using them with a scottoiler so i thought i would ask :P

Some people say it's fine. Others(including me) wouldn't use it simply because it is 'dirty' oil. It's probably ok, I just wouldn't taint my gorgeous Eileen with dirty oil ;o)

[yorkie_chris]

Originally Posted by MrTom

Hitler it may be, but its very hard to search for oil related topics as 'oil' is too short a word for the search.

google.com

used engine oil chain site:forums.sv650.org

et voila

Originally Posted by ejohnh

Some people say it's fine. Others(including me) wouldn't use it simply because it is 'dirty' oil. It's probably ok, I just wouldn't taint my gorgeous Eileen with dirty oil ;o)

It is dirty in as much as it is black, however suzuki helpfully provide a fine mesh, high pressure filtering system to ensure it isn't all that bad.

I think it was jambo said "10 minutes ago this oil was suitable for lubing an engine spinning at 14000 rpm, dropping it out of the engine doesn't make it useless"

Yep, Yorkie, we all choose our own path to heaven. After 3k miles or so the oil just ain't what it was. Maybe it's good for chain lube. Maybe I'm just a obsessive bugger about using 'used' oil on my chain and sprockets. Maybe you are right. Maybe I am wrong, Maybe. It's all a matter of personal choice and no big deal.

I'm a bit confused about the filtering system though. Doesn't that just ensure that the crap that is generated by the combustion process and engine/gearbox dynamics, stays in the sump and doesn't get circulated back through the engine etc?

[yorkie_chris]

No, the crap remains in the filter, it can't get back into the sump because there is a check valve and 80psi of oil pressure stopping it.

But, the nastiest stuff is acid from combustion, the oil has buffer compounds in it to neutralise these.

Probably best compromise is really cheap car oil and a loobman oiler.