6v92 mechanical
(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fimg.tapatalk.com%2F4bcb550d-2a57-b12e.jpg&hash=57212fcb836e12bae3a0233d942dd80bcc558e53)
(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fimg.tapatalk.com%2F4bcb550d-2a69-b230.jpg&hash=96be8427dc22165d69e58198b940d59fb443e01d)
Sent from iPhone via Tapatalk
Airplane oil!! This should be interesting !
Have fun !
Eric
No that is a S rated oil S means spark firing along with air cooled and and four stroke, diesel use a C rated compression firing if it has a SL/CD rating it would work
You also can't use it because your bus will spontaneously take flight and that's a whole different ballgame from what we're used to!
RB ;D
It might be alright if you don't try inverted flight...
Dennis
Not sure about that weight but I know the 15/50 is around $100 for 12 quarts.
John
ahahah....you guys crack me up... :) Cliff, what would be the negatives of using such an oil rated for "spark ignition" engines?
Aeroshell 100 is 50wt. syn airplane engine oil. I bought a case to run in my '85 Harley FLH, but wasn't happy with the results. What's wrong with 40wt. CF-2?
Quote from: Geoff on May 10, 2012, 05:46:35 PM
What's wrong with 40wt. CF-2?
Almost impossible to gain altitude.............. ;)
Scott,
Use it as fuel...you'll go really fast :)
-Sean
C'mon, oil is oil right? :D ;D
WHY ? Whywould onewant to use aviation lube oil, designed for an entirely different operating engine, first air cooled engines run hotter than water cooled engines, why I used it in my old VW camper, worked great for that, but in a diesel ? I would say maybe been reading too many comic books. ;D
I used 50 wt diesel oil in my 8V-92, due to having it in the 600 hp range plus the weakness of the rear main bearing.
Dave
My guess is he got a good deal on a load that fell of the Back of a truck?
Scott, "C" rated oils have special additives to disperse the carbon ("soot") that diesel engines put into their oil. Aircraft oils don't have those additives. As was mentioned, this formulated to be stable at high temps but it really doesn't have much else going for it; one thing that it's good at is not leaking or losing pressure in a high temp airplane engine as the tolerences in oil clearances and the small gasket surfaces move around. Most airplanes that would use that oil get an oil change at 50 hours, that's about the equivalent of 2500 miles; the reason for the short change is that the oil is a good detergent but not very good at holding what the tribologists refer to technically as "crap" in suspension.
Not a very good oil for what we need in any case (even a gasoline engine in a bus); much less good for a diesel engine.
guess motorcycle oil will be next..
Quote from: chev49 on May 11, 2012, 11:38:41 AM
guess motorcycle oil will be next..
Only if it's 2 stroke oil! :P
;D BK ;D
Ever get the idea, some one is just pulling your chain ? This is so stupid it has to be a joke?
Dave
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... ;D
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??
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
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. ;D
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
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.
Sent from iPhone via Tapatalk
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 (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
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
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
Quote from: Scott Bennett on May 13, 2012, 01:21:43 AM
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.
Sent from iPhone via Tapatalk
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
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 :)
Sent from iPhone via Tapatalk