Best fuel economy?

133776

{"text":"Guys and gals. I love the power of the C-15 Cat but let’s put it out for debate. Best fuel economy for what you get or best over all engine. Cat, Detroit, Cummins, Pacar? ","videos":"[]","link":"{}","pics":"[]","canComment":true}

415632

{"replyTo":"","text":"6.5mpg.  Cummins ISX15\n85-95 gross and wide high and long loads all the time.  ","replyToPid":0}

462372

{"replyTo":"

462372 发表于 2019-04-26 01:46:41 dd15 7.5 @ 35000-40000lbs going 60mph no trailer skirt.

","text":"I just want everyone to know the huge difference in fuel economy, I was getting 4mpg hauling 40k @70 mph, I'm now only 60mph and the fuel efficiency is 7.5. that's huge! I only.dropped 100 miles a day, but the fuel savings more than makes up for it.","replyToPid":21502}

631628

{"replyTo":"","text":"Volvo VNL760 with Cummins X15, 6.4-7.2 mpg @ 65-80k conversely.\nonly 24k miles on it so may improve.","replyToPid":0}

415632

{"replyTo":"","text":"It's set at 600hp and I run it pretty hard most of the time. ","replyToPid":0}

415632

{"replyTo":"","text":"About like all the rest.  Mine is in a 389 as well. ","replyToPid":0}

344441

{"replyTo":"","text":"6ish ISX15 Cummins! PETE 389 so....👍🏻","replyToPid":0}

607887

{"replyTo":"","text":"8.9 mph","replyToPid":0}

133776

{"replyTo":"","text":"How does the ISX15 do with maintenance cost?","replyToPid":0}

462372

{"replyTo":"","text":"dd15 7.5 @ 35000-40000lbs going 60mph no trailer skirt.","replyToPid":0}

449144

{"replyToPid":0,"replyTo":"","text":"2010 389 Cat C-15, 550 HP, 3.55 rears, 18 speed\n4.5-5 Mpg pulling 49FT Timpte super hopper "}