Quote:
Originally Posted by Diseasel300
Since the ULSD switchover, diesel has cost roughly the same as premium gasoline in this part of the world. Pretty much all across the South. OP is in Houston, fuel cost is the same there as it is here. Diesel/Premium E10 is roughly 50¢ more per gallon than 87 E10. When fuel cost is roughly $2.45/gal for 87, that's a LOT of mpgs you have to squeeze out of that diesel to break even, not to mention actually save anything.
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Is it fair to compare to 87 unleaded though? I'd argue that premium was the intended fuel for just about every Mercedes ever and is what should be filled up with. When you compare diesel at roughly $3.00/gal vs well over 3 bucks ($3.20-3.40ish for premium), there is still some savings to be had. So as long as you can maintain good mileage and not get slammed with repairs, it still could be appealing.
This is me checking in from the Midwest so curious how your gas prices are tiered. Really surprised to see premium so much more expensive than regular; sometimes almost a whole dollar more. I remember when each step up in grade was 10 cents 
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{2010 Mazda 3 266,000mi} - daily since new, Airlift suspension + some chunky sway-bars: fastest pass 17.7@77MPH
{1987 300SDL 256,000mi} - stock turbo @ 22lbs straight piped + a whole bunch of pre-turbo water/meth injection, 722.3 with increased line pressure, special sauce, and shift kit: fastest pass 16.5@82
{1992 964 Carrera 4 Frankenstein ??,???mi} - 993 forward dated, Speedster conversion, GT45 + E85: fastest pass 12.5@113
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