Personally, I use lacquer thinner to clean any dirty oilstone.

I have a concrete driveway, and on occasion a drop or more of oil will drip from
 either my old truck or my old Tbird. SWMBO has hissy fits about any oil on her 
driveway, so I always clean these as soon as possible. Over a period of time I h
ave learned the the only solvent that actually works and works well for this is 
lacquer thinner. I don't know why, but it definitely cleans the concrete while n
othing else is nearly as good. Go figure.

This is what taught me to use lacquer thinner on my oil stones. Something else m
ust have taught me to always clean my oilstones after every use. This prevents t
hem from getting fouled in the first place.

On Dec 9, 2011, at 10:46 AM, John Holladay wrote:

> I know that we had some discussion not too long ago about cleaning oil
> stones.  I've looked at the archives and it seemed to me that the prevaling
> wisdom was to put the stones in the dishwasher (when SWMBO is not home
> prefereably) and give them a good bath.  That sounds like an appealing
> option to me, but thought I would check to see if anyone had come up with
> any better ideas in the mean time.  In particular, I have a few of India
> stones that need a bit of cleaning up, but they don't appear to be really
> bad.  I
> 
> n addition, we had some discussion about flattening these stones and it
> seemed to me that the most efficient method was to use the good ole'
> driveway or I think someone mentioned concrete pavers.  It sounded like the
> sandpaper idea was not as effective if memory serves.  Is there anything
> new to add that I am missing.
> 
> Thanks,
> 
> Doc
> 
> -- 
> John Holladay
> DocHolladay0820@g...
> 205-229-8484
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