Mackdaddy2030 Posted March 14, 2015 Share Posted March 14, 2015 Does anyone know what the difference in fuel milage is between a Pinnacle CHU and CXU?Just wondering how much you lose with the square front of a CHU. Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/ Share on other sites More sharing options...
Mackdaddy2030 Posted March 14, 2015 Author Share Posted March 14, 2015 Dam autocorrect, mileage lol Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-282541 Share on other sites More sharing options...
bts-4120 Posted March 15, 2015 Share Posted March 15, 2015 I think what you would pulling will dictate your fuel mileage more than the hood doubt if there is a huge diffrence and the price is the same for either anymore Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-282698 Share on other sites More sharing options...
41chevy Posted March 15, 2015 Share Posted March 15, 2015 I agree, what you're pulling and where you run.If all things were equal I personally think the mileage difference would be negligible. Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-282701 Share on other sites More sharing options...
bbigrig Posted March 17, 2015 Share Posted March 17, 2015 If you were pulling the same load, on the same terrain, in the same climate..... The difference would be in the decimals of fuel mileage loss. CHU would be less efficient by design but barely noticeable in the grand scheme of things. The CXU and CHU have a slightly different Tare weight and the sleekness of the CXU gives it a slight advantage in cutting through the wind. I will throw a bullshit number out there of .2 to.3 mpg loss on a CHU. We were actually looking into the same thing months ago as we like the classic look of the CHN and so do our drivers. It's a small difference you may not even notice. An inexperienced driver can cost you more then that in fuel mileage just shifting wrong or idling too much. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-282925 Share on other sites More sharing options...
bbigrig Posted March 17, 2015 Share Posted March 17, 2015 Forgot to add 2 things... 1- the CHU is $4500 (CDN) more then the standard spec CXU. This could be because the standard engine in the CHU is an MP8 and the CXU is an MP7. 2- the 22" of set forward wheelbase means 22" more frame needed to accomodate the set forward axle. Which is more Tare weight then a CXU. Just thought I would add these points to the debate. I'm still torn over which one we would order next. We like to keep our cross border trucks at about 222" wheelbase. The CHU can't be any shorter then a 230". Which means more weight. With twin 142 gallon tanks on our CXU's and being already maxed on our tare with full tanks, I suspect a CHU would push us over. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-282940 Share on other sites More sharing options...
storkmack Posted March 18, 2015 Share Posted March 18, 2015 Ran our Mdrive last Thursday 280 miles grossing 79K# pulling a flat hauling block then shingles, with about 100 total miles empty 5.25 mpg have to admit I had my foot in it unintentionally. Damn things is so quiet and smooth you just don't notice that you are cooking along pretty good. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-282951 Share on other sites More sharing options...
Mackdaddy2030 Posted March 18, 2015 Author Share Posted March 18, 2015 That's what I wad thinking. Less then .5 mpg. I see guys post on here that they are hearing guys pulling van trailers with MP8 and Mdrive getting 8mpg. I figure they are the full aero package, but I still don't believe it. I would think you would get better Storkmack pulling a skateboard. I was getting high 5's to low 6's pulling the tank in the fall with the new truck. Which I still can't believe my old CH with 4.17's got better mpg. Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-282984 Share on other sites More sharing options...
bbigrig Posted March 18, 2015 Share Posted March 18, 2015 You should ask if the 8mpg is in US Gallons or Imperial Gallons as are used in Canada. We get 8.5Mpg imperial gallons. Keep in mind 1 US gallon is 0.8 imperial gallons so it may be where you see a difference. If our Pinnacles are getting 8mpg (imperial) they are getting roughly 7mpg (US). Maybe that helps? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283062 Share on other sites More sharing options...
dds92780 Posted March 18, 2015 Share Posted March 18, 2015 Ran our Mdrive last Thursday 280 miles grossing 79K# pulling a flat hauling block then shingles, with about 100 total miles empty 5.25 mpg have to admit I had my foot in it unintentionally. Damn things is so quiet and smooth you just don't notice that you are cooking along pretty good.Finally somebody that is honest about fuel mileage and not just bragging that they get 6-7 mpg hauling rock at quarries with stop and go traffic. Quote Slow and Steady Wins the Race! Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283065 Share on other sites More sharing options...
bts-4120 Posted March 19, 2015 Share Posted March 19, 2015 you can get a chu little under 230 wb if you play with tank size and sleeper size. Canada has weird wb laws for sure those Pete 379 and 389 up there set up on 244" wb look terrible Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283101 Share on other sites More sharing options...
Mackdaddy2030 Posted March 19, 2015 Author Share Posted March 19, 2015 You should ask if the 8mpg is in US Gallons or Imperial Gallons as are used in Canada. We get 8.5Mpg imperial gallons. Keep in mind 1 US gallon is 0.8 imperial gallons so it may be where you see a difference. If our Pinnacles are getting 8mpg (imperial) they are getting roughly 7mpg (US). Maybe that helps?I'm guessing it's US gallons, cause I know they were talking about Tyson Foods trucks on the one thread. Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283133 Share on other sites More sharing options...
bbigrig Posted March 19, 2015 Share Posted March 19, 2015 We haul right to the 80,000lbs gros max and cant even fill the fuel tanks half the time running into the US for our tandem/tandem units.If they are getting those kind of US fuel mileage numbers they are hauling loads of sailboat fuel. (AIR) or something close to it. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283157 Share on other sites More sharing options...
bbigrig Posted March 19, 2015 Share Posted March 19, 2015 you can get a chu little under 230 wb if you play with tank size and sleeper size. Canada has weird wb laws for sure those Pete 379 and 389 up there set up on 244" wb look terribleEngineering at Macungie sent up warning flags when we discussed shorter then 230" wheelbase. We can order it but Mack has already deemed it as abnormal. LOL.If we go with a CHU in the future we have come down to about a 227" wheelbase for our needs and spreads required. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283158 Share on other sites More sharing options...
MackMann85 Posted March 19, 2015 Share Posted March 19, 2015 less than 55mph, no difference. Start running at 65+ for extended periods and you will see a difference, albeit not huge. Wind resistance is not a linear curve, the faster you go the more it impacts fuel economy 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283178 Share on other sites More sharing options...
bbigrig Posted March 20, 2015 Share Posted March 20, 2015 Our trucks are governed at 105km/h. Huge savings. 65mph. Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283254 Share on other sites More sharing options...
Lmackattack Posted March 20, 2015 Share Posted March 20, 2015 I had the pleasure of working for a company where fuel milage was nothing more than a game of who could put the most amount of $$ into the tanks.The "best" I ever did was just over $1400. That was with a truck that could carry 300 usable gallons on the tractor and 35 for the trailer. This was back in 2007? when fuel was at $5 a gallon. We fuled up in northern Cal or Southern Oragon. The 5 of us pulled up and dropped about 7 grand at a little ma and pop gas station. the owner was smiling and We all got a free soda and sandwich for the road... LOLThat being said we were sponcered by Texaco, and they paid the fuel bills no questions asked. Those trucks had 550 cats and good tires. They had a lifetime avg of 5.0 MPG (good times) 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283260 Share on other sites More sharing options...
storkmack Posted March 20, 2015 Share Posted March 20, 2015 Fuel report for today: 85' R model 350 hp E6 pretty much stock, 12 sp 4.17 rears hauled 7 loads of gravel with a short dump grossing 70-72K. 205 miles total 47 gallons= 4.36 MPG. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283334 Share on other sites More sharing options...
dds92780 Posted March 20, 2015 Share Posted March 20, 2015 Fuel report for today for me too : 95 Rd688s, E7 350, pump turned wide up, bigger injectors, 460 turbo, 4.42 rears 9 speed, getting to 40 pounds of boost at times but holding it around 30-35 all day. Getting on it after 35-40mph wide open when empty.6 loads of gravel. 172 miles and 31.9 gallons used. =5.44 MPG 1 Quote Slow and Steady Wins the Race! Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-283336 Share on other sites More sharing options...
Mackdaddy2030 Posted April 3, 2015 Author Share Posted April 3, 2015 Well, I actually had the truck out today. Hauled a dry van load from Sycamore IL to Woodridge IL. Was mostly on the highway and had cruise set at 58mph. I was about 76,000-77,00 gross. Then returned empty. 113 miles 21.85 gal for 5.17mpg.It was a little windy and I still had winter blend #2 diesel in the tanks. And I just got the truck back from the shop and had the rack run so it should be at its prime efficiency. Was hoping for a little better. Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-285122 Share on other sites More sharing options...
Lmackattack Posted April 3, 2015 Share Posted April 3, 2015 5.17 is not that great for mostly highway. I was getting 5.5-6.25 with a e7 350 in a CH pulling lowboy. Days I was doing all highway I was at 6.0 easy. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-285124 Share on other sites More sharing options...
Mackdaddy2030 Posted April 4, 2015 Author Share Posted April 4, 2015 5.17 is not that great for mostly highway. I was getting 5.5-6.25 with a e7 350 in a CH pulling lowboy. Days I was doing all highway I was at 6.0 easy.I know. My old '98 would have done much better. I know the new emmisions trucks got worse MPG then the old ones, but I thought when they added the SCR it was suppose to bring up. And I was driving at a decent speed. Now I have hard some people deleting the EGR, DPF and SCR and getting 1-1.5MPG better. I might be thinking about that. Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-285217 Share on other sites More sharing options...
IH Farms 2 Posted April 22, 2015 Share Posted April 22, 2015 I'm getting just over 6mpg running from Hampshire Il to corn products in Bedford park il (basically chicago) loaded at or almost 80000 in my 88 superliner 2 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-287493 Share on other sites More sharing options...
Refined Trucker Posted May 3, 2015 Share Posted May 3, 2015 01 cx613 pulling gas can. ran down in Tn lots of 2 lane winding hilly rd then came back empty to In reloaded and delivered in IL rural 2 and four lanes and lots of stop lights bounced 45 mile back home and made 7.5 mpg that's grossed out + with Rochester stage 2 and their turbo kit. That's about its best average but always will make 7 no matter where I run. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-288590 Share on other sites More sharing options...
2stick6speed Posted May 30, 2015 Share Posted May 30, 2015 5.17 is not that great for mostly highway. I was getting 5.5-6.25 with a e7 350 in a CH pulling lowboy. Days I was doing all highway I was at 6.0 easy. Quote Link to comment https://www.bigmacktrucks.com/topic/39255-fuel-milage/#findComment-291756 Share on other sites More sharing options...
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