The Good Oil

I'm probably the last to discover this,but for all you fellow engine
collectors out there,the best oil I've found to use in my boxed pride
and joys is motorcycle fork oil. I'm using CASTROL FORK OIL 10 (they
also make a 5 which,is lighter)and have found it to be just
great. Doesn't have any dye,is thicker than 3in1 and similar machine
oils,not as thick as car engine oil and I guess,compressible(great
for diesels!). Says on the label it prolongs seal life for those
engines with sealed ball races,and also helps minimise rust and
corrosion. I paid 10 bucks for 500ml. at Supercheap Auto. Viscosity
is rated at ISO VG 32 at 40 degrees C. and is mineral based. Try it!

LAST EDITED ON Dec-01-03 AT 02:18 PM (CST)
 
Bob, no oil is compressible.

You may need to check out air tool oil.

Felt compelled to respond to statment that "No oil is compressable".
As an RAF fitter working on Gloster Meteor NF 11, 12, and 14 mark of aircraft in the mid 50's I was involved in the maintanence of U/C components which incorparated the Dowty Liquid Spring units, this was a component which was a completely filled strut of oil which provided both springing and dampening qualities in use. to say that oil is incompressable is incorrect, to say that oil is incompressable for practical purposes is probably more correct. Will provide link to support this.

http://fluid.power.net/fpn/const/const002.html

Picky, picky, picky. For all PRACTICAL purposes, oil is not going to compress enough for us, in PA to notice it, especially in our engines. That is a given and I felt understood, by most.
Another good oil for degumming a stuck or sticky engine is that used by, or was used by most model railroaders. Wahls electric hair clipper oil. I degummed an old engine the other day with it. I do not know if it burns off, or just goes out the exhaust unburned. It does, however, prevent corrosion and is conductive of current, and that is one reason it is used on the tracks of some, not all, model railroads. I do not recommend its use for engine storage.

I have to agree that fork oil is a very good choice for your engines protection in storage just as air tool oil is.Good Day!

When I was designing large aircraft hydraulic systems we typically used a compressibility factor for hydraulic oil (Mil-H-5606) of 1/2% per 1,000 psi in the temperature range in which these are normally used. For all practical purposes this is pretty nearly incompressible.

Many of the experiments mentioned in the article linked to your reply don't seem to provide/account for the flexibility of the containment devices (pressure vessels) for the fluids. The article is interesting, if mostly anecdotal, evidence of the compressibility of oil.