volvo d13 fuel mileage. It has the same fuel efficiency as the DD13 – from 6. volvo d13 fuel mileage

 
 It has the same fuel efficiency as the DD13 – from 6volvo d13 fuel mileage  2012 Volvo d13 has engine code Sid90 Fmi 14 won't clear checked clogged hoses ok

©2013 Volvo Group North America, LLC Volvo D16 600V/2050 Advertised Power, HP 600 Peak Power, HP 605 Peak Torque, lb-ft@rpm 2050@1050 Governed rpm 2100 Recommended cruise speed range, rpm 1200-1500 Start engagement torque, lb-ft@rpm 850@800 Volvo D16 500V/1850 Volvo D16 500V/2050 XE Volvo D16. 36 rear and OD Ishift. 5 Oil, Filters and Fuel Filters (Replace) Specific fuel consumption, g/kWh (lb/hph) @ 2300rpm 209 (0. Updated: Thu, Nov 16. "Volvo Penta Fuel Consumption chart fuel usage 3. Volvo has introduced a new generation of air compressors that save fuel by building up air pressure more efficiently. 1 with a 13 liter. Volvo Trucks North America’s latest-generation D13 Turbo Compound engine is now standard on all VNL models, enhancing fuel efficiency and. Volvo D13Volvo D13 Engine Family FEATUREs and Advanced technologies Benefits SPECIFICATIONS Ratings: Power: 375 to 500 HP. When fuel injectors are damaged, fuel economy, power, and performance all suffer. The Volvo D13’s efficiency and power improve operating costs, while meeting GHG emissions standards. Two XE ratings, six Eco-Torque and three Dual-Torque ratings provide dual-personality torque output for customers who desire the fuel. EPA MPG Owner MPG Estimates 2012 Volvo C30 FWD 5 cyl, 2. Engine Model. Write a review. Decrease fuel economy and power because of deteriorating performance from the exhaust gas recirculation system. 6 range with an ISX15. The new and improved engines will deliver between 2. Valves and. Learn more. *L = Liter per Hour / RPM Select Volvo Penta Diesel Test Model HP Fuel consumption WOT Boat owner? Volvo Penta Diesel D1. The wheelbase per axle configuration of a Volvo VNL 760 is 197. Play Video 360° VIEW Unless you want to creep around at 55mph and stay on the flats, most of us will get in the 7. 4. 5. 2017 Volvo VAH, Volvo Engine, ishift, 600k Mileage. (442 kilometers). Volvo Trucks North America’s new VNL series delivers up to 7. Volvo’s 16-liter D16 engine features. The D13TC engine is designed to minimize greenhouse gas emissions while enhancing fuel economy. 3 when i bought it ( i guess the previous guy did 400 mile bobtail and reset it to zero before he started(!) ) and after 4000 miles it droped to 5. Fuel Tank (US gallons) 222 Fuel Filler Necks on Both Sides Standard Gross Vehicle Weight Rating (lb/kg) 55,000/25,174. Over all average loaded has been 5. OlegMel posted Oct 15, 2023. Check out this used 2015 Volvo VNL630 equipped with a 405hp D13 engine and an automated 12sp I-Shift Read More. 1,192 1,016. $17. Dedicated, factory-built. 210 gallons (800 L) fuel tank. 5-1. (yes, I change more frequently than the manual says I need to. 5 MPG driving in the low to mid 60's. Volvo Trucks North America said it has further enhanced its fuel economy packages for its VNL and VNR truck models. In yesteryear’s world of cheap fuel, horsepower was king. 78 mpg. Transmissions. In yesteryear’s world of cheap fuel, horsepower was king. Mobile; Español. Volvo Trucks North America is introducing the next generation of its turbo compound technology, providing up to an additional 3% improvement in fuel efficiency. Volvo D11 & D13 Fuel Economy MPG Increase Plug and Play Power Module Tuner Start saving time and money now! Increase your fuel economy . Fourteen power ratings are available, from 375 to 500 hp. I had this annoying problem also and changed mine out and it was fixed. Worn fuel injectors can reduce fuel economy an average of 3%. I bought a Volvo 660 2003(D12) ( traded with my Mack ) hopping to get better fuel mileage , but the strange thing is happening. LAST 6 OF VIN 363657. The Volvo D13 delivers the perfect combination of fuel efficiency and power for a wide range of applications, and the reliability you demand. $125. 6. I was Volvo master tech certified in 2008. Volvo D13 405-500 hp 1450-1900 lb-ft. 2kb: Download: Volvo D7, D12 Engines Service Manual [PDF] 1. com. Volvo D13 455VE/1750-1550 ECO/Dual Advertised Power, HP 455 Peak Power, HP 465 Peak Torque, lb-ft@rpm 1750@1050 Governed rpm 2100 Recommended cruise speed range, rpm 1200-1500 Start engagement torque, lb-ft@rpm 850@800 Volvo D13 475VE/1650-1450 ECO Volvo D13 500VE/1850-1650ECO Advertised Power, HP 475 Peak Power, HP 485 Peak Torque, lb-ft@rpm. Volvo is also offering 100 ft. One must just try dealing with electrical wiring if knowing the below ideas &. View All 2019 Volvo VNL860s. Cummins X15 400-565 hp 1450-1850 lb-ft. 60/500 Engine Plan 2 & EATS warrranty!!! OUR VNL 760 is our best-selling truck. D13. It's only been sitting for about 3 weeks and ran fine when I parked it in the garage. Moreover, this truck is a long-haul sleeper built to provide reliable performance. New sensor on the ventury pipe ( do not know the name. pre 2010 non SCR Technology. Went out to start it today and it ran then stuttered then just died. read more. $179. Volvo D13 425VE/1750 XEThe amount of fuel savings that come from improvements of that magnitude are beyond substantial. Fuel Filter, Replacement d11 d13 d16. One explanation I got from Volvo , was that the fuel with high %. The D13 strives for balance in its output. Regulate Your Speed. The latest VNL builds on Volvo’s foundation—fuel efficiency, driver productivity, safety, and uptime—with precise refinements based on drivers. Nyberg said testing routinely showed the SuperTruck. TAKE OUT ENGINE RUNS WELL AND HOLDS GOOD OIL PRESSURE/ 120 DAY WARRANTY ON ALL MAJOR CASTING PARTS See Video. Engine Manufacturer: Volvo. 2010 VOLVO D13 Engine Assembly. , is already building EPA2010 engines and is fully on track for large-scale production next year. MAK 85103778. 1,800 Feb 21, 2010 0 Volvo 780 with a Volvo d13 engine (425hp) 13 speed. only when the engine is shutoff though, fuel pressure is always higher then coolant pressure when the engine is running. The D13 is designed to meet and exceed expectations of its hauling capabilities. The Volvo D13 engine and 10 Speed Eaton Fuller transmission, low miles and a warranty for your peace of mind. May 13, 2014 #1. The diesel particulate filter (DPF) is a critical component of the Volvo D13 engine's aftertreatment. The volvo D13 Powertrain Product TourPower and fuel efficiency. The waste gate was replaced and the computer was reprogrammed twice with no improvement. . e. Cleaned dpf filters and. The enhanced D13 Turbo Compound (D13TC) engine from Volvo Trucks is now standard on all Volvo VNL models, providing enhanced fuel efficiency and reducing overall cost of ownership. . Front Axle lbs: 12400. GREENSBORO, N. The Detroit DD13, on the other hand, bottoms out at a lesser 350 horsepower. 1 Liters per hour - Also US and Imperial Gallons. Oil amp fuel pressure sensor 21634021 for volvo d12 d13 truck. Volvo Trucks’ D13TC engine is equipped with Dynamic Torque, a system that enables the driver to operate the truck in a more fuel-efficient manner by adjusting to the exact load. For this issue, there is a fuel pressure leak test to be performed in the ptt program which will test the system and has the capabilities of eliminating a component. 2012 Volvo d13 has engine code Sid90 Fmi 14 won't clear checked clogged hoses ok. Volvo Trucks North America’s latest-generation D13 Turbo Compound engine is now standard on all VNL truck models. VOLVO D13 ENGINE provide input to the EMS: • Ambient Air Temperature Sensor 1. Crankshaft power 2. Empty weight full of fuel is 33,400 lbs Empty I get 5. Volvo Penta D16 MH is an in-line 6-cylinder, 16. 2011 Volvo C30 FWD 5 cyl, 2. 8. 00. 441 kW. Volvo D13 2008/ still original motor 1,320,000 miles , I had a long cranking, knew the injectors are gone; this time I drove it to shop; 3 injectors cups gone again, (see photos the carbon deposit leaking from combustion),. Following shows the average MPG of each of the 7 vehicles in the system. Volvo D11, D13 and D16 engines are certified to comply with U. 1 Gi/Gxi V8 |. 74 GPH:. 87 New. 4 million. Volvo Truck Boost Pressure Sensor Problems88800387 Fuel Injector Sleeve/Tube/Cup Remover. No lights or codes, just the rough idle. 5 Oil D11 / D13 with 42L/44qt Oil Pan: Volvo VDS-4. Volvo truck diesel engines include the Volvo-built engines D11, D12, D13, D13TC, D16, D6B, and Cummins X15, whilst Volvo truck gas engines include the Cummins ISL G and Cummins. 5 - 5. DD13 DD13 IDP HORSEPOWER RANGE 370-525 425-450. Use this tool to help identify the most fuel-efficient vehicle that meets your everyday needs by comparing the fuel consumption information of different models. 1-liter D16 (MP10). “Every truck we replace with a VNL, we’re continuing to get improvements upwards of 2 mpg, so we are still seeing up to $15,000 savings per truck. Photo: Volvo Trucks North America. Volvo Trucks started its operation in India in year 1998. Click to expand. 5-1. Mileage Customer Yes No. . This engine features. By employing a secondary exhaust. Fuel Injection Pressure, psi (bar) 35,000 (2,400). The unique design of Volvo’s common-rail fuel system delivers multiple benefits. GVW: 4V4NC9EG7GN942717. 6,648 satisfied customers. . Volvo D13 Power Tuning Fuel Economy MPG Increase Start saving time and money now! Increase your fuel economy . Now more than ever, the DD15 has continued to prove itself as the industry leader, and one of the most efficient 6-cylinder diesel engines for sale in the market. Loaded can be anywhere from mid 4's in the mountains up to 6. Get it as soon as Wednesday, Nov 8. MPG Estimates from Others; MPG estimates from drivers like you!. NOTE: Actual fuel filter service intervals may vary based on fuel quality and vehicle application. 08. Warning You can compare a maximum of. available for Volvo’s 13-liter D13 engine. There is a user on here (can't think of name off hand) who has I think a 2008 volvo with d13, has never opened it up, and is at like 1,450,000 miles. Also have a coolant consumption issue. I sent out the old oil as well and it had 28% fuel in oil. D11/D13 with 42L/44qt Oil Pan: Volvo VDS-4. not working properly or not responding/communication issue. These oils are not backwards compatible for use in older engines. 0 | 8. Mack MP7 & MP8 – 2014+. Volvo FE Electric Volvo FL Electric Electric trucks Services FAQ The Leap – How to go electric Silent power Get the most out of your vehicle, with maximum safety and the best fuel efficiency. Mileage: 296,372. Better combustion for better fuel economy. Thanks to everyone that has subscribedhope this helps as it is just a. 18 GPH: Volvo Penta Diesel D1 30: 30 hp: 1. Stage 1 Volvo D13 Upgraded Turbo Assembly 64mm Billet Compressor Wheel Performance Turbocharger. cb engine control - volvo engine 29 cc engine control - isx export 30 cd engine control - export 31 ce fuel filter heater 32 cf urea dosing system 2/3 - obd 2016 33 ch inside/outside air cleaner 34 cl engine control - isx-g 1/2 35 cm methane detection 36 cn engine control - isx us17 1/2 37. Don't risk a cheap deal on injectors that haven't been fully rebuilt to last!Welcome to Volvo Trucks India. 47 rear axle ratio. They range from 325-425 horsepower and. 2004 211 55 5(8). Our Volvo DPF delete solution is made by 100% online reprogramming of the engine control. He began ordering VNL 760s with the D13TC engine in 2018. Right now I got approved to buy a new volvo 2019 and I have two choices: volvo 860 d13 with ishift ( has the working station which I really like ) or volvo 760 x15 with 13 speed trans manual. Engine Volvo D13 User Manual. Great Owner Operator Volvo with BRAND NEW TIRES! No defects, Very Clean, DOT inspected, READY! The Volvo D13 engine and the Eaton 10 SPD transmission make this ride very comfortable for the driver and passenger, while insuring the best fuel mileage in the industry. htayoo. Used as the base in this line of CK Power Tier 4 generators, the D13 provides fuel-, maintenance- and time-savings onto you. Now available as an option with the latest D13 Turbo Compound engine, I-Torque is designed to achieve best-in-class fuel efficiency, without compromising performance, drivability and productivity. Could not get it to start after that, felt/sounded like a fuel issue. Apply for Financing Opens in a new tab. Plan your next road trip with this handy fuel trip calculator! See how much you'll spend on fuel in your travels. And because increasing operational efficiency and cutting fuel costs is more important today than ever. A standard diesel particulate filter (DPF) and selective catalytic. On the topic of fuel, leaks leading to the injectors and strong fuel odor emanating from the engine are also signs of bad injectors. Call us today to buy Volvo D11/D13 engine parts at competitive rates for improved combustion productivity and. This truck 2020 Volvo VNL64T860 is located in Atlanta Engine make and model are: VOLVO VNL64T860 Transmission type is: GVWR: VIN: Financing available. The avergae MPG on this Volvo is 5. With 1450lb-ft, 1450lb-ft, 1550lb-ft, 1650lb-ft, 1750lb-ft, 1850lb-ft of torque respectively. Volvo’s VNL 760 equipped with the Xceed package improves fuel economy by up to 16%. Mercedes-Benz Transfer Tube FUEL LINE NOZZLE ADAPTER A9060170524 DDEA9060170524 . The updated D13 – Volvo’s most popular engine – is available in the Volvo VN, VHD and VAH models, and offers a fuel efficiency improvement of up to 2. Chief among the changes, the proprietary D13 turbo compound engine is now standard in all VNL 740, 760 and 860 models. 5% fuel efficiency gain versus its 2014 predecessor, using the same new common-rail fuel system, wave pistons, and assembled camshaft as found in the 2017 model D11, along with a new two-speed coolant pump on XE models that boosts fuel economy by 0. 5 to 8. Want better fuel economy, change gear ratio, of course, there's a trade off. Never specify a Volvo D13 engine for a cruise speed above 1550 rpm. Volvo D13 Boost and fuel mileage problem. Phone: (844) 303-7036. 3 to 9. Inside the 70” lo Read More. Transmission: AMT. 5 mpg & add an additional 60-120HP! Your engine will gain both HP and torque through the entire RPM band. The enhanced D13 Turbo Compound (D13TC) engine from Volvo Trucks is now standard on all Volvo VNL models, providing enhanced fuel efficiency and reducing overall cost of ownership. It's only been sitting for about 3 weeks and ran fine when I parked it in the garage. I tried running a Common Rail Pressure test, and it failed! Injector 6 issue. Volvo Penta D13 is an off-road, in-line 6-cylinder, 12. Highly fuel efficient with low emission levels; 600 hp 650 hp 750 hp 800 hp 850 hp. My Volvo diesel D13 creates boost at low RPM's at various amounts of level and at any given time; the fuel mileage has gone down by 1. What the D16 lacks in fuel efficiency, it makes up for in power delivery. Volvo D13 Engine Specs. Understanding the tables. If you want to relive the performance of your Volvo D13 engine, you may need to pay $10,000 to $40,000 for the complete overhaul. D13 Engine Brochure. 7 mpg range with a 15 liter and maybe 8. The waste gate was replaced and the computer was reprogrammed twice with no improvement. It will drop a little in the colder months usually but with what you are getting there must be an issue. Dont remember the rears but it was a weird one like 342?? Have to check paper work it'. • Max torque at 1000 to 1400 r/min: 2300 Nm. ) Designed for customers with long-haul, steady-speed operations, the 13-liter Volvo D13TC utilizes turbo compounding technology that recovers energy typically. (22,407 kg. 42 ratio and 430 HP 10speedOD, 6. Economy vs Power modeWith its high performance and fuel efficiency, the Volvo D13 Turbo is an ideal choice for those who need a reliable and powerful engine for a semi truck. The Volvo engine plant in Hagerstown, Md. For trucks, the speed limit is usually no higher than 65 mph. 162 Liters per hour - Also US and Imperial Gallons. This is a fuel leak fault code which indicates that there is either a fuel leak internally or one of the pumping injectors are going bad. Together, these factors can help you save up to an additional 0. Engine Make. Volvo Trucks North America adds to its track record of industry-first breakthroughs in powertrain innovation with the Volvo I-Torque. mliugong. Extended coverage to 3-year/350,000-mile (563,270 km), when dealer installed. D13 Engine Brochure. 64, 40k Meritors, HEPA air filters, Heat+Massage seats, i-Shift, Volvo. Amantya, Dec 9, 2018. Cab. Using that data, it can shift or hold gears—whichever will achieve better MPG for your2023 Volvo VNL 860. The Volvo D13 turbo compounding engine delivers fuel efficiency and power for a variety of truck applications. The enhanced D13 Turbo Compound (D13TC) engine from Volvo Trucks is now standard on all Volvo VNL models. The Volvo D11/D13 engines are workhorses in both off-highway and on-highway applications and their competitive advantage comes into play when hauling full loads. 20668 Engine Dxi11 Gb. $228. SKP#:112506. Sleeper Type. The variations are between 400-505hp and about 1,471-1,671lb-ft of torque. The most accurate 2014 Volvo VNLs MPG estimates based on real world results of 1. My truck is a D13 455 hp with the 12 speed I-shift. Volvo Announces Xceed Fuel Efficiency Package For VNL 760 & VNL 860 Trucks Posted 11/5/2018. Technician: Mike Mcmillan. I'm. 2016 VOLVO VNL64T670, ENGINE D13 455 HORSEPOWER, TRANSMISSION. not comfortable to sleep. not posible to be fuel pump on d13 cuz it connects to power steering pump and driven by power steering not gears like it used to be before only place they come together is the head mainly the injectors. The fuel e. Oct 8, 2019. I have seen similar numbers from good Volvo drivers, also running in the 1300-1400 RPM range on the D13 with similar gross and routes. The Volvo D13 is generally considered to be a good engine. The Volvo XE13 powertrain package is designed to cruise comfortably in the engine’s sweet spot reducing engine friction and increasing fuel efficiency. These problems can cause poor engine performance, including rough idling, reduced power, and decreased fuel efficiency. I was worried when it had a rough start but apparently, that was expected. I've got a 2010 VNM64T with D13 with 115000km on it. It has 869,722miles, a Volvo I-Shift 12 speed transmission and 3. Depending on the operation, the next-generation D13TC engine provides fuel savings up to 6% compared to the 2020 Volvo D13 VGT engine. 08 $ 228. now in a 07 d12 with a automatic trans. Quality meets Variety in our Stock, Don't Miss Out !! 718,,000 Kms D13 I Shift Automatic Transmission Bunk Heater SCR Warranties till 700,064 Kms Explore. 5%. Free shipping. Inboard Engine. Source: Caliber dodge diagram 2009 system fuel wiring. 4 million miles driven in 7 Volvo VNLs Click here to see. 34. Check DetailsView and Download Volvo VNL operator's manual online. available for Volvo’s 13-liter D13 engine. is also the most fuel-efficient Volvo powertrain, Nyberg said. Extra power for big loads and steep grades. I get this fault code dtc p016e00 and sometimes dtcp24a200. With a displacement with 12. Cummins X15 400-565 hp 1450-1850 lb-ft. 5%. I used it mostly in winter to help with cold weather fuel economy, but also used it in a summer oci. Volvo D13 Engine Family FEATUREs and Advanced technologies Benefits SPECIFICATIONS Ratings: Power: 375 to 500 HP. Find A Dealer. Volvo Trucks North America said its new Volvo I-Torque option for the latest D13 Turbo Compound engine enables the truck to operate optimally with up to a 31%. Economy vs Power mode There's a decrease in power or fuel economy; Volvo D13 Turbocharged engines are used in a wide range of heavy-duty applications, from trucks to construction equipment. The new Turbo Compound engine improves emissions, reducing. the only real downside to the Volvo d13 is that only volvo can work on it flood, Dec 13, 2015. 8% fuel economy improvement with as low as 900 RPM (with. Its torque then ranges from 1,450 to 1,850 lb-ft. “The D13TC engine optimizes fuel efficiency and increases the value to customers through cost savings and overall ROI,” said Allison. What is volvo d13 vs detroit dd15. 2 is probably pretty good. 4 Jun 30, 2013 0 Hi, I have a 2012 d13 with ishift. Production of Volvo’s 12. My N-14's both have 1. Brake Air Compressor for Volvo D13 Engine 22016995 OEM (2) Total Ratings 2. 1-liter D16 (MP10). Volvo Trucks North America adds to its track record of industry-first breakthroughs in powertrain innovation with the Volvo I-Torque. November 1, 2011. Volvo. I tend to run a little faster so most of the time I am in the 7. In the Volvo VNL 740, 760, and 860 models, the new D13TC engine works to offer more fuel savings for a wider range of applications, such as long haul or local delivery, as well. The Volvo D12 is a heavy-duty diesel engine that delivers approximately 800 ft-lbs. No ratings or reviews yet. 2017. That’s a lot of torque from the D13. “The D13TC engine optimizes fuel efficiency and increases the value to customers through cost. ca's free calculator!The cheapest way to get from Revelstoke to Bellingham Airport (BLI) costs only $82, and the quickest way takes just 6 hours. Wave design optimizes0. 9 to 0. 13 hp: 0. Rear Axle lbs: 38000. Committed to cutting fuel costs, Volvo Trucks North America is also offering select fuel economy packages to customers. 2019 Volvo Vnl740 Sleeper | Volvo D13 engine | 500 HP | I-Shift | Clean unit | 3. In 2013, about 87 percent of all Volvo trucks invoiced in the US and Canada were specified with a Volvo engine. Wheelbase. Unless you want to creep around at 55mph and stay on the flats, most of us will get in the 7. Did it at 12 degrees out on a cold start, then 3 days later at 60 degrees after sitting two hours and today at 50 degrees after sitting an hour. 12-Month Unlimited Mileage Warranty Necessary Gaskets and Seals are Included. 000 mi Volvo D13 losing coolant, no signs on oil dipstick or in air tanks. Fuel Type: Diesel. 8-liter D13 (MP8) and 16. For example, the minimum horsepower produced by the Volvo D13 is 375. Fortunately, both the Volvo D13 and the Cummins X15 generate an impressive amount of power. 8-liter diesel engine. loaded or not i pull 40000 all the time and avg. It uses a high-pressure unit injector system, a twin-entry turbo with a water-cooled exhaust manifold, and an overhead camshaft. My Volvo diesel D13 creates boost at low RPM's at various amounts of level and at any given time; the fuel mileage has gone down by 1. he was like- maybe they need few hundred miles to learn and. Johny41 Road Train Member. Transmission: Manual. I use to average about 43-45 ltrs/100km. Volvo Penta D13 is an in-line 6-cylinder, 12. Dual Torque Direct-drive 10-speed manual Every Prevost motor coach uses the proven and environmentally-friendly Volvo D13 engine. 10. 2019 VOLVO VNL64T740 For Sale in Mississauga, Ontario at TruckPaper. — Volvo Trucks North America is taking steps to increase its vehicles’ operational efficiency and cut fuel costs for owners by enhancing the fuel-economy packages in its trucks. Ask your salesman to help you choose a rear axle ratio appropriate for your expected cruising speed and gross combination weight. Effective Tuning offers worldwide Volvo DPF removal service via ECU remapping for trucks, agricultural and construction equipment for years! Our experienced tuning specialists can switch off the DPF function from the ECU of your Volvo machine. 25 gear ratio. 2% and 6. 82 GPH: Volvo Penta Diesel D1 20. we do have 1 driver getin over 7 mpg when i asked him how he was doin that he said he sets. HP: 435. As the core of Volvo VNL, the D13TC is one of the best fuel efficient semi truck engines with even better fuel economy savings via turbo compounding. read more. 2015 Volvo VN Volvo D13 engine Serial Number(###) ###-####Chassis I’d 918409 Mileage 429,323Procedure for replace rocker box gasket ( leaking) and what is set time for job. 2016 volvo vnl64t670, engine d13 455 horsepower, transmission volvo i-shift automated manual 12,500 read more. yes what you heard is the general consensus of Volvo dealers, the D13 is more reliable with less problems, and more fuel efficient than the D16. 1375-1425 cruising at around 65 mph. Volvo Penta’s D13-IPS1350 is the big sister to the D13, offering longer range at a lower fuel consumption and reduced emissions. *RATING 5. Read more about Services Get the most out of your vehicle, with maximum safety and the best fuel efficiency. I run 63 - 65 mph when loaded. Also, with 100. -lb.