[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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