Nah, been doing it on occassion for 30 years. It's just a little bit in a
whole tank of gas, and if you have that much blowby you have bigger
problems than a little bean oil.
For that matter, back when I was racing the bike I drove on the street (a
BSA Goldstar--guess where the compromises got made) I used to fairly
routinely swap the cheap mineral oil for castor for "serious" races.
Nothing really tricky was required going either way, just get the engine
good and hot, drain the tank, drain the hoses, pull the tank, rinse it out
with gasoline and dump it on the ground (hey, it was a long time ago) and
refill everything. I'm sure there was plenty of the wrong stuff still
present, but not enough to matter.
-----Original Message-----
From: WEmery7451@aol.com
To: elliottd@look.ca; Bill Babcock; lang@isis.mit.edu; fot@autox.team.net
Sent: 4/5/2003 5:55 AM
Subject: Re: Castrol R
In a message dated 4/4/03 7:21:59 AM Pacific Standard Time,
elliottd@look.ca
writes:
<< I would think that a major part of it would get past the rings,
otherwise
there would be none of that unforgetful smell. When there would be no
smell
left, then we could assume that it had all burned past the rings.
>>
<<That's why I put it in the gas instead of in the sump. You can't mix
Castrol R and regular or synthetic oils in any quantity. >>
My Castrol R comment may not have been very clear. Some people that I
knew,
who were driving their street cars with mineral oil in the crankcases,
would
pour a cup of Castrol R in their gas tanks to get the sweet racing
smell. My
thoughts were that an infinitesimal amount of Castrol R may blow from
the
combustion chambers past the rings, enough to gum things up.
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