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Old February 18th, 2017, 06:25   #43
GoFaster
Moderator at Large
 
Join Date: Jun 1999
Location: Brampton, Ontario, Canada
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The fuel consumption (by volume of fuel) advantage is still in favor of diesel but not by the margin that it once was.

If CO2 is your thing, that advantage slims down by about 10%.

If cost of operation is your thing, the extra complexity of the emission control systems and the HPFP and all the things that go along with those is going to go against whatever fuel savings may exist. In many cases the cost of operation may be higher if these systems aren't durable in the long term.

"Clean diesel" is when I switched back to gasoline engines ...
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Brian P.
formerly ... 2006 Jetta TDI 5-sp, Spice Red, Unitronics stage 1, 0.681 5th gear.
and before that ... 1996 Passat TDI, Silk Blue
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