Ron Head wrote: > Hi Phill > My shop gets pretty cold in winter too, and I've had the problems you > describe. Turn on the pump and what comes out mostly water, the oil having > turned to a sludge at the bottom of the tank. Stirring it up with a stick > works to some extent, but I eventually finish up ditching the stuff, which is > a problem because you can't pour it down the drains. > > Have you tried different mixture strengths? I normally use only 5%, perhaps > a higher concentration might be better. Anyone else got any better ideas? > > Regards > Ron > > In chilly Oxford UK > > > ----- Original Message ----- > From: Phill Smith > To: modeleng@xxxxxxxxxxxxx > Sent: Monday, November 24, 2008 2:42 AM > Subject: [modeleng] Re: Soluable oil > > > G'Day Gents, > > I have just filled my mills coolant tank up with a light neat cutting oil, > but I would really like to change it back to soluable oil. The reason I > have > not put soluable oil in, is because in winter it's not unusual for the > workshop to go down to -5°C overnight. I know that close to 0 temp's > can/will cause the solution to separate. > > What experience have other members had in very cold workshops? > > > Cheers, > > Phill. > > MODEL ENGINEERING DISCUSSION LIST. > > To UNSUBSCRIBE from this list, send a blank email to, > modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject > line. > MODEL ENGINEERING DISCUSSION LIST. > > To UNSUBSCRIBE from this list, send a blank email to, > modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject > line. > > Ron, What about putting one of them "fish tank" heaters in the tank? Or a foot of "tracing"? patrick MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.