[Vwdiesel] Lubrication for beginners--- ( what really is DINO ? )

H.Hagar h_hagar at prcn.org
Sun Aug 22 13:38:29 EDT 2004


As you can see from Val Christians " crappy oil "  thread  he was lucky
--like me to have spent a lot of time with professional Tribologists.

That resulted in some interesting discussions ,  and they are still ongoing.

I said from day one use the best oil you can afford  ---that sorts out a lot of us
me too.  I do not NEED to use cheap oils.    I just like to give some hope to
the lesser blessed.

Thanks to API it has become a lot easier now a days.  Here is what I found out , 
There are times when a cheap oil is better than the more expensive.  It has
to do with crude and QC.     The top brands have good QC departments the cheap ?
who knows. At times the cheap guy gets a load of good crude ---BINGO now we get
tales about engines doing fine. ----Then enter Wal-Mart and Canadian Tire and Sears.

Bet you they do not have their own refineries.    Things are getting complicated.

In my lifetime Shell has done a superb job --- Now I kind of like Delvac 1 for newer
diesels.     I never got good answers to a lot of questions. --- LIKE   why such a
difference in the crude ?   and how and where was the crude formed in the first place.
And when?    Some heavy duty diesels are still specifying Mineralube  ---no dispersants
no multigrade -----why  ?   because really good crude still make an excellent lube
dollar for dollar.    Like Val Christian mentioned  some of the additives degrades the
lubricating properties. And the secret is a GOOD filter.

If DINO was so bad ? ---why is it the only stuff approved for Aircraft engines.?
Last time I talked to the refinery ---no Syn was approved ---think --why?

Why do I not use ExxonMobil right now ?  because the plant is not open
week-ends.  Wal-Mart is.     15 W 40  Tech 2000 I use.  So far it works.

I have an engine here taken apart --gasser --that ran on dino for a thousand hours
it is clean as a whistle inside.  Sligtly yellow in places.   AD-80 Esso.

So to give the lesser blessed some hope ---NO your engine is not going
to croak on lower cost API approved DINO oils .

The best people to tell us about oils are the aircraft overhaul shops.  When a 
FBO with say a hundred Lycoming 0-320 gets there  they take the engines apart and they
have an oil change record right there. 

Funny thing that oil is --or it would not be 50 dollars a barrel.

oil selection is a compromise.  
Val.   -----  and Hagar agrees 100%.

Hagar.

PS:  yes Val I do remember you said that some semi syns were approved
for aircraft.     I checked Wal.Mart last night and man Delvac 1 is really being
pushed right now. They even had 4.4 liter jugs.    It may not be fully approved
for diesels. Is Mobil 1 fully diesel approved ?

I'd really be interested in qualified analysis of engine life using 
different cost oils.  
Val

Me too Val . I found a test where brands were compared --the syn in the test
did little better than the rest.All the engines were taken apart after test and
measured ---one hell of a lot of engines ----There was no significant difference.
All the oils did the job.---API did its job ?  maybe.

Hagar.

PS: Cheap oil may not be Crappy oil.-----then it may. Expensive oil is seldom
Crappy.   Makes me think I need a full body massage right now--hope Lenora
is not out of oil.


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