I've got a new question or two about oil. A co-worker of mine mentioned that conventional oil is hydrophilic while a full synthetic isn't. Is that true?
He also mentioned that the oil in a car garaged (instead of being outside) was far less affected by the fact it's hydrophilic. Can anyone confirm or deny this?

 

I can certainly deny that I am a practicing hydrophylic
Mark
01 TheBlackBeast#0090

ps: I'm a doctor I know this shit!

[Edited by drmark on 02-22-2001 at 03:46 PM]

 

Ok...sorry couldn't resist.

Now I didn't graduate from GMI (any of you out there "tekkers"?)but "hydrophylic" means attracts water. From my chemistry days (long ago ) I don't know of any oil that does that. I use Mobil 1 in my last 3 Mark 8s and my Stook. I'm sure that ABC regular oil as long as it meets the standards and you change it every 3000 mi is fine. No offense but sometimes I think we get a little too concerned about what goesin our Stooks.
Mark
01 TheBlackBeast#0090

 

I bet you mean hygroscopic

 

Hydrophilic and Hydrophobic normally relate to the electrical states of carboxylic acid in aqueous solutions. Hydrophobic being non-polar and hydrophilic being polar. This discussion is usually reserved for discussions of how soaps work in basic organic chemistry. The chemistry is only minorly applicable to the detergent properties of motor oil.

CD is correct that hydroscopic relates to the physical state or ability to hold moisture as opposed to the chemical state or ability to hold electrical charge.

P.S. As for the previous post I'd love to know how warming up the system for 30 minutes gets rid of the moisture in a closed system?

 

It can't be an entirely closed system if we experience burning oil during breakin right? I mean where does the oil go then? If burnt oil can escape, I am sure the pressures can force water vapor out as well. Just my 2c, please correct me and educate me on this...

 

Theoretically sustained operating temprature will expose the water to high temp surfaces causing it to gas and much of it will be eliminated from the system.

 

Right again Cdelena, It is my understanding that traces of moisture in the oil evaporate through the PCV during normal engine operation.

 

[QUOTE]Originally posted by cdelena
[B]I bet you mean hygroscopic

 

heh, I didnt think you could have Hydrophilic and Oil in the same name. The whole reason I can print is because oil and water dont want to mix. Printing plates have hydrophilic and oliophilic surfaces(water loving/oil loving)
BUT some emulsification must take place to split the film of ink. Inks are oil based and can be made with different degrees of water absorbtion capabilities.

I would want at least a little bit of water absorbtion, maybe that would help against internal oxidation? Or at least untill it can be burned off. Now what is the temp. at which water goes from liquid to gas again? That would be at the average atmospheric pressure@sea level.

lol, I are a printor