GDiesel Consumption Results

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2,057
Location
Sequim, WA
Here's the data I collected. The consumption data was for a 1.00 hour run of a 1.5L Isuzu in a 12.5kW Onan/Cummins generator on a load bank set at 6250 watts. Three GDiesel samples were purchased from three different locations listed on the GDiesel web site. Two control samples were run, Shell and Chevron, both EPA 49 state ULSD. Density in g/ml at 21C:
Code:
Shell    0.8340 
Chevron  0.8303
GD1      0.8306
GD2      0.8286
GD3      0.8282
Calorimetry in calories/gram:
Code:
Shell    10,879
Chevron  10,926
GD1      10,933
GD2      10,925
GD3      10,939
Consumption (grouped by day) in g/hr.
Code:
Shell  2158.17
GD1    2173.26 +0.70%

Shell  2147.51
GD1    2137.92 -0.45%

Chevron  2169.42
GD2      2164.65 -0.22%
GD3      2142.28 -1.25%
The GDiesel showed an average of 0.30% lower consumption compared to the two controls. The average margin of error based on the replicate samples is 1.05% Ed
 
Messages
10,783
Location
Jupiter, Florida
Wow, that is statistically within the noise. I would not expect anything different considering there is literally no difference in specifications. I wonder if you really were pumping GDiesel. Does it smell different? How about the cost? Without a difference in energy density, how could we expect a better result?
 

edhackett

Thread starter
Messages
2,057
Location
Sequim, WA
There was a slight difference in smell. The GDiesel has a "softer" smell, a bit more like kerosene. The cost at retail is the same. They start with EPA compliant 49 state diesel and end with what is claimed to be an ASTM compliant diesel. There's not much room for differences. Ed
 
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