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Old 10-17-2007, 12:47 PM   #15
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If there are a lot of pumps not labeled ULSD but they really are ULSD then I would agree with other posts. I don't inquire at each station about this but I did inquire at one and they had only LSD. I hope for the sake of those with new diesel engines that ULSD is readily available.

Jim Walker
N Virginia
2014 Palazzo 33.2
Cummins 6.7 ISB, Allison 2100 6 Speed
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Old 10-17-2007, 01:04 PM   #16
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Considering the accuracy of the pump labeling is questionable, can ULSD be distinguished from LSD by looking at it? How would you know if the labels aren't correct?

'11 GMC Acadia SLT AWD
'11 GMC Sierra 1500 4x4 Extended Cab
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Old 10-17-2007, 01:17 PM   #17
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A little research will answer your questions.
Try here:
Too bad you couldn't take the word of the gas station attendant's.
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Old 10-17-2007, 03:24 PM   #18
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Richard the best way to tell the differance betweem LSD and ULSD is to taste them, the ULSD is sour

I am wondering if there is a value to finding a good aftermarket additive to boost the lubricity of the newer ULSD. I worry because I have found out through the CAT garages that the C7's injectors are a very sensitive piece of equipment. Most importent "clean fuel filters" and "Clean Motor Oil"

Good work Jerry, that should quell this debate

Steve, Pat, Hakbar, & Root Motor

2007 National RV Pacifica 36'
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