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Old 11-08-2010, 02:43 PM
'88 E-350 '88 E-350 is offline
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WMO emissions test results

From the time I started running oil I hoped it wouldn't be TOO much dirtier than #2, just to feel good. Well, it turns out I was wrong. The difference is pretty much unmeasurable between the two. CO, CO2, O2, & HC numbers were all the same for both fuels. The WMO seemed to show a few points lower in NOX, but the numbers bounce so much I couldn't say it was much different. Now I KNOW it's greener to use WMO; as long as it doesn't kill the motor anyway.
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Old 11-08-2010, 05:35 PM
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Exactly!!! Now you have the proof I have been using WMO in my 7.3 IDI for a long time and no issues and you do notice the increase in power and MPG improvement. WMO has more power potential so I advanced my timing to take advantage of that.
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Old 11-08-2010, 06:54 PM
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Quote:
Originally Posted by '88 E-350 View Post
From the time I started running oil I hoped it wouldn't be TOO much dirtier than #2, just to feel good. Well, it turns out I was wrong. The difference is pretty much unmeasurable between the two. CO, CO2, O2, & HC numbers were all the same for both fuels. The WMO seemed to show a few points lower in NOX, but the numbers bounce so much I couldn't say it was much different. Now I KNOW it's greener to use WMO; as long as it doesn't kill the motor anyway.
Care to post those results?
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Old 11-08-2010, 07:32 PM
'88 E-350 '88 E-350 is offline
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We didn't do a printout, just a "manual mode" test. HC were 30-35 PPM, CO was .03%, NOX was 450-480 with some short spikes higher & lower. Don't recall the CO2 number. Most of the testing time was spent at a high idle at that's where these numbers came from. I don't know the actual RPM, guessing just under 2K by the earometer. We did little at idle, and a little mild power braking and those seemed about same with both fuels as well. NOX of course spiked power braking; a little over 1000. I wanted to spend more time on it, but he was starting to get backed up so we quit there.

I have read about oil making more power & mileage. I have no idea on mileage, but my power tests have been no different between fuels so I'm guessing MPG to be about same as well. It could be that I need to change my timing to optimize for the fuel, but since the oils will vary, that magic advance point would as well.

Ford390-how did you come to know the right advance to optimize it? I've done it on gassers a lot, but don't know what to look/listen for on a diesel. If you advance until it looses power then back it off do you run a risk of blowing it up in the process?
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Old 12-07-2010, 01:20 AM
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ive just been going through a class that my instructor was a boiler operator/engineer for many different companies, and we were discussing different fuels used, and #2 diesel although its clean by industry standards its still a relatively dirty oil, i bet if you sent #2 diesel and wmo oil in to be tested the numbers would be similar for all the hazardous components, might have a little more "strange" particles in the wmo oil, just my opinion as i have nothing to base it on except for my talks with my instructor and his experience, in fact in one of the text books that says for a cleaner alternative to #2 fuel to use kerosene as a direct replacement because its a more efficient/cleaner burning fuel blah blah etc.

i soon plan on at least using 50/50 mix so this test of yours 88 is good to know, thnx for taking the time
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Old 12-07-2010, 01:20 AM
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