CONVERTING WASTE MOTOR OIL TO DIESEL FUEL
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Diesel Enthusiast
Joined: Jan 2011
Posts: 337
Likes: 17
From: South Dakota
the viscosity of oil when it is heated to 160 is real close to diesel when you drain you engine oil when your truck is warm the oil is thin like diesel make a viscosity cup and try it out
Diesel Fan
Joined: Feb 2011
Posts: 12
Likes: 3
From: Fort Campbell, KY
Oil viscosity
The weights of oil, in this case 15w40 means that it is manufactured to not exceed either of those numbers. In the summer-time or when the engine is warm, it will not drop to less than 15 but during the winter or when the oil is cold, it will not get thicker than 40. The "w" stands for "winter".
So heating it will bring it down to the 15 that it is rated at, not the 40 which is its "Cold" rating.
Hope this helps.
Diesel Bomber
Joined: Aug 2009
Posts: 2,257
Likes: 186
From: CO
Viscosity Index
...Was slightly backwards. But I see where you're going with it. 
Motor Oil Viscosity Grades Explained in Layman's Terms
Motor Oil Viscosity Grades Explained in Layman's Terms
"When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C). The difference is when the viscosity is tested at a much colder temperature. For example, a 5W-30 motor oil performs like a SAE 5 motor oil would perform at the cold temperature specified, but still has the SAE 30 viscosity at 210° F (100° C) which is engine operating temperature. This allows the engine to get quick oil flow when it is started cold verses dry running until lubricant either warms up sufficiently or is finally forced through the engine oil system. The advantages of a low W viscosity number is obvious. The quicker the oil flows cold, the less dry running. Less dry running means much less engine wear."
Diesel Fan
Joined: Feb 2010
Posts: 22
Likes: 1
want to know more
im mainly wondering about something ive only heard of and never seen. i live in western new york where oil wells are somewhat common. has any one ever heard of filtering straight crude and puting a heater in the tank and running a diesel on that. supposidly a couple ppl have done it around here but ive never seen it
old wvo from backyard well.
Diesel Fan
Joined: Sep 2009
Posts: 12
Likes: 1
From: Joint Base Andrews
This is actually a fun read for me. I have been using WMO for quite a while. All of my friends save used oil for me. The bennefits I've encountered is a quieter engine and a no cost fuel alternative. I use a pump mounted to a hand cart that sucks the oil from a 5 gal. pail, through 2 filters, then straight into my tank. I never run over a 1/3 ratio because it always seems to lack a little power if I go more. I also seem to get more of a haze if I do so.
---AutoMerged DoublePost---
What I would really like to know is there anyone running propane along with this and which system they use. Some of us have access to propane for nothing and would be running propane be useful to the bottom line....my wallet.
---AutoMerged DoublePost---
What I would really like to know is there anyone running propane along with this and which system they use. Some of us have access to propane for nothing and would be running propane be useful to the bottom line....my wallet.
Last edited by 90ToyHauler; Jul 14, 2011 at 03:12 PM. Reason: Automerged Doublepost
