Can I use this oil in my coach?

[Busted Knuckle]

guess motorcycle oil will be next..

Only if it's 2 stroke oil! 
  BK 

[wg4t50]

Ever get the idea, some one is just pulling your chain ?  This is so stupid it has to be a joke?
Dave

[Scott & Heather]

Fantastic...thanks for the clear explanation Bruce...exactly what I was looking for. Sorry guys, I'm a dummy...not a joke. I honestly wanted to know. Precisely why I asked. Every question has to be asked by someone. I'm comfy enough in my 29 year old skin that I am willing to sound and look quite stupid in front of all 3500 of you to learn more... 

[gus]

That oil is perfect for Spicer four speed trans. The book calls for 50 wt aviation grade mineral oil.  Aviation mechanics normally called this engine "break in" oil for new/overhauled engines.

This is AD oil but should work just as well as the straight mineral oil.

This is definitely not good for diesel engines.

It is not synthetic oil, in aviation 100w oil means 50 wt - go figure??

[Geoff]

What?  I thought this was a thread to keep up posting the obvious answers. Another waste of time that we can all participate in

--Geoff
'82 RTS`AZ

[Carbone]

I sell oils and lubricants for a living. Looble.com is always my suggestion for for information. Great for Mobil products but also a great source of information. 

[Utahclaimjumper]

  As an A/P-IA in the aircraft maintenance game,, I can tell you that Aeroshell oil is running about  $6.00 to $8.00 a QUART!! Another reason to avoid it.>>>Dan

[Scott & Heather]

For what it's worth, I was browsing my local Advance Auto parts store and saw 50 weight oil that claimed to be "ashless" and since I'm still learning about most things in life I had honest questions about its use in a diesel.  Not sure why a few insist it was a joke. But I'm more than happy to share a chuckle. But on another note, it is strange that my local Advance Auto sells this stuff when there isn't an airport for miles. Further confused me.


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[bevans6]

If anyone really wants to learn about ash in engine oil, this may elucidate:  http://dspace.mit.edu/bitstream/handle/1721.1/61614/704739979.pdf?sequence=1

From a layman's point of view, "ash" in engine oil is metal oxides, sulphates, phosphates that are included in the oil additive package (pg 25 of that doctoral thesis).  If you have an ash-less oil, you have an oil with no additives.  Additives are good, and essential for long life of both the engine and the oil, hence this is a "break-in oil" per the label.  The reason diesel oil is going to far lower ash content in modern oils is related directly to emission control and particulate filters.  As the oil is consumed, it is burnt and the additive metallics create ash.  In two stroke engines, the issue is more the oil is burnt at the ring pack (no cooling exhaust stroke, combustion heat and pressure every stroke, oil is burnt at the compression rings) and the ash is created at the rings, causing wear issues.  You need additives for extreme pressure wear resistance (ZDDP is the common one), and for many other things, but you need to balance it.  CF2 oil was designed with a specific additive package for two stroke diesels.  4 stroke oils are optimized for different operating conditions inside the engine.

Brian

[wg4t50]

Non detergent oil is a wonderful break in oil, it sure will remove the glaze from the cylinder walls.
Found this to be true, learned from old man who was the Diamond T factory tech until Diamond T and Reo merged, then he went to Pilot Truck, a large fleet in NC who ran only Diamond T tractors, was VP maintenance until he retired. 
The brightest mechanical guy I ever met, that was 1953 when met him, kept in touch until his death, Maybe some old geezers knew him.  Harmon Bowers.
Cheers
Dave

[Geoff]

Scott--

When you were in the Advanced Auto store was it Valvoline 50wt Racing oil you were looking at?  If so, it is actually a low-ash oil and the oil that older Harleys use.  They stores usually have 60wt racing oil also.  I wanted 40w racing oil for my Yamaha Rhino and had to order it on line.

--Geoff

For what it's worth, I was browsing my local Advance Auto parts store and saw 50 weight oil that claimed to be "ashless" and since I'm still learning about most things in life I had honest questions about its use in a diesel.  Not sure why a few insist it was a joke. But I'm more than happy to share a chuckle. But on another note, it is strange that my local Advance Auto sells this stuff when there isn't an airport for miles. Further confused me.


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[luvrbus]

Ash-less oils have been here for years it's nothing new all the natural gas compressors on pipe lines have used the stuff for years along with transit co's than run the lpg and ng engines  

The Chevron HDAX 40w is what the Phoenix Transit use in their buses,and FWIW the the Delo 400 is .5% ash content now will be .0 by 2014

[Scott & Heather]

Geoff, it was aircraft oil. The photos I posted on page one show the label. I just thought "if 40 weight is good 50 weight must be great!" little did I know


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