really i dont see a 1.2% in reduction its more like 12% really my 300SD used to give way better mpg when LSD was on the market, with a full tank of Low Sulfer Diesel i can go from Tulsa to OKC round trip (200 miles) and still have at lease half tank of diesel left, now with full tank of ULSD i only get quarter tank of diesel, now that is not a 1.2% reduction its more of 12%, maybe its time that i should add some biodiesel and i bet its way cheaper than buying additives.....

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Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi