Came across description, evaluation of 2 cycle oil
and chemistry links that might help explain
although not BD specific:
This relates to 2 cycle air/water cooled engines
e.g. chain saw, marine, lawn mower, etc.
How 2 cycle ultralight aircraft engine OIL works
Model aircraft engines very often have no rings and very small
piston/cylinder clearances, so small that some engines are actually tight to
turn over when cold! Because of this they need very good lubrication ( up to
30% oil). Castor is still provides better engine life and more power than
- Original Message -
From: Martin R. [EMAIL PROTECTED]
To: biofuel@yahoogroups.com
Sent: Sunday, September 02, 2001 2:42 AM
Subject: [biofuel] BD 2 Stroke oil
Hi All
In all my 2 Stroke engines , I use 20:1 Mix , better to blow some smoke
then one at all . no smoke make's your saw run
: Sunday, September 02, 2001 10:32 AM
Subject: Re: [biofuel] BD 2 Stroke oil
Hi Martin,
The belief that more oil is good is a common one, and a incorrect one!
ordinary two-stroke oil, when added to the fuel effectively reduces the
octane rating, causing more of a tendency to detonation hence
Hi All
Well some said no and some yes , I'm here to say that it dose work
as 2 stroke oil and quite well at that , at first I was hasades to
use it in my chain saw
but after a while and having given it some thought, I used a 20 to
1 mix and it worked
Subject: [biofuel] BD 2 stroke oil update
Hi All
Well some said no and some yes , I'm here to say that it dose
work
as 2 stroke oil and quite well at that , at first I was hasades
to
use it in my chain saw
but after a while and having given it some thought
Well, you'd think that at 20:1, just about anything would work,
considering that most 2-strokes nowadays use 50:1 and even 100:1 mixes.
I'd be hesitant, however, to use it in my expensive Stihl chainsaw, but
if someone had an older 2-stroke lawnmower that they didn't care about,
it would be
Hi All
In all my 2 Stroke engines , I use 20:1 Mix , better to blow some smoke
then one at all . no smoke make's your saw run leaner and hotter and
run the risk sizing your saw greater more oil will make your 2 stroke engine
last longer for spark plugs are cheaper then an engine rebuild and the
If you run a 2 stroke on a richer ratio than the maker specifies, a well
known fact is that the burning of the excess oil creates heat, and can seize
your engine... I still hold to the fact that Biodiesel is NOT a substitute
for 2 stroke oil, try mixing it in an engine that uses the oil/fuel
