Gas mileage on chevy avalanche

God those blizzaks were so much quieter. Keep in mind, when a 2500 is getting ~10-11 mpg, every additional mpg is a substantial increase. Right now, I'm averaging 11.0 mpg (calculated), and my best in the summer thus far has been 12.2 (calculated) and my best in winter was just shy of 13mpg. I do 90% highway driving.

Gas mileage on chevy avalanche. The Edmunds TCO ® estimated monthly insurance payment for a 2010 Chevrolet Avalanche in Virginia is: View detailed gas mileage data for the 2010 Chevrolet Avalanche. Use our handy tool to get ...

16 MPG. 14 City. 19 Highway. Tailpipe Emissions. 9 tons CO 2. Avalanche LT. vs. 7.6 tons. Avg. Large Truck. Yearly estimate based on your driving miles. Learn more about 2008 …

2006 Chevrolet Avalanche 1500 4WD. Search by make for fuel efficient new and used cars and trucks ... 2006 Chevrolet Avalanche 1500 4WD Personalize Find a car: Flex-Fuel Vehicle. 8 cyl, 5.3 L, Automatic 4-spd Compare: Fuel Economy; EPA MPG: Regular Gas Combined MPG: 14. combined. city/highway. MPG. City MPG: 13. city. Highway MPG: …2002 Chevrolet Avalanche 2500 8.1L V8 GAS Automatic 4 Speed Crew Cab Pickup Added Sep 2017 • 61 Fuel-ups. Property of Drcorvette . 11.0 Avg MPG. avalanche. 2002 Chevrolet Avalanche 2500 8.1L V8 GAS Automatic 4 Speed Added Jun 2014 • 53 Fuel-ups. Property of blizzardice . 9.1 Avg MPG. Tips.21 Highway. Tailpipe Emissions. 8.3 tons CO 2. Black Diamond Avalanche LTZ. vs. 7.6 tons. Avg. Large Truck. Yearly estimate based on your driving miles. Learn more about 2013 Chevrolet Black ...Detailed specs and features for the Used 2006 Chevrolet Avalanche including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.The most accurate 2003 Chevrolet Avalanche 1500s MPG estimates based on real world results of 2.3 million miles driven in 72 Chevrolet Avalanche 1500sA smaller and more fuel efficient car just isn’t an option. The 5.3 Vortec ranges from 14-17mpg. However, there are a number of upgrades and modifications that can help add 3mpg. These mods are going to cost you around $1,200 but they will pay for themselves in just a few years with the added fuel savings.2008 Chevrolet Avalanche Overview. Launched in 2001, the Avalanche is Chevy's four-door, six-seat sport utility truck. Thanks to a full redesign in 2007, the 2008 Avalanche as an exceptionally functional hauler/tower and a surprisingly smooth highway cruiser. These features make the Avalanche one of the top-ranked sport utility trucks.

The Edmunds TCO ® estimated monthly insurance payment for a 2010 Chevrolet Avalanche in Virginia is: View detailed gas mileage data for the 2010 Chevrolet Avalanche. Use our handy tool to get ... Research the 2008 Chevrolet Avalanche at Cars.com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory. The most accurate 2008 Chevrolet Avalanches MPG estimates based on real world results of 1.2 million miles driven in 44 Chevrolet Avalanches ... 2008 Chevrolet Avalanche LTZ 6.0L V8 GAS Automatic 4 Speed Added Jun 2016 • 833 Fuel-ups. Property of …from other Chevrolet Avalanche vehicles . 97trophy fueled-up their 2009 Chevrolet Avalanche. Last Tank: 16.1 MPG 2 days ago; shepral fueled-up their 2013 Chevrolet Avalanche. Last Tank: 16.1 MPG 3 days ago; DDK319 had 1 best tank(s) for their 2007 Chevrolet Avalanche. Last Tank: 37.5 MPG 1 week ago; Nippon added 1 notes for their 2011 Chevrolet ...2002 Chevrolet Avalanche 2500 8.1L V8 GAS Automatic 4 Speed Crew Cab Pickup Added Sep 2017 • 61 Fuel-ups. Property of Drcorvette . 11.0 Avg MPG. avalanche. 2002 Chevrolet Avalanche 2500 8.1L V8 GAS Automatic 4 Speed Added Jun 2014 • 53 Fuel-ups. Property of blizzardice . 9.1 Avg MPG. Tips. Performance & mpg. All 1500 Avalanche models feature a 5.3-liter Vortec V8 rated at 295 horsepower and 335 pound-feet of torque hooked to a four-speed automatic transmission. Avalanche 2500 ...

Five year cost savings for flexible fuel vehicles assume you drive on gasoline only. Fuel Economy of the 2013 Chevrolet Avalanche 1500 4WD. Compare the gas mileage and …2008 Chevrolet Avalanche MPG. Based on data from 44 vehicles, 3,903 fuel-ups and 1,178,306 miles of driving, the 2008 Chevrolet Avalanche gets a combined Avg MPG of ...The Avalanche’s standard engine is a 310-horsepower (326 hp with E85 fuel), 5.3-liter V-8 with an iron block, rated at 335 pounds-feet of torque (350 pounds-feet of torque with E85) with a six ...ReelLove, 12/10/2009. 2005 Chevrolet Avalanche 1500 4dr Crew Cab LS 4WD (5.3L 8cyl 4A) LT2 & Z-71. This truck goes everywhere, anytime, in all conditions. 19+ mpg highway/13.5 mpg city. Will tow ...2003 Chevrolet Avalanche. EPA MPG. Owner MPG Estimates. 2003 Chevrolet …Millions of AVAX tokens – the native crypto of the Avalanche blockchain – will be unlocked on Sunday and distributed to key players in that ecosys... Millions of AVAX tokens – the ...

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Read 2006 Chevrolet Avalanche Owner Reviews, Prices, Specs and Photos. See 35 Consumer Reviews, 46 Photos of the 2006 Chevrolet Avalanche. ... The 2006 Chevrolet Avalanche has a combined MPG of 19 which ranks it #2 of 10 other Full Size Pickup Trucks. 1 2006 Toyota Tundra 22 MPG 2 Tie 2006 Lincoln Mark LT ...The 2013 Chevy Avalanche offers only one engine and transmission choice: a Vortec 5.3-liter V8, matched to a 6-speed 6L80 Hydra-Matic transmission. ... EPA city/highway fuel economy: 15/21 mpg ...View detailed gas mileage data for the 2007 Chevrolet Avalanche. Use our handy tool to get estimated annual fuel costs based on your driving habits. ... Used 2007 Chevrolet Avalanche MPG & Gas ...2002 Chevrolet Avalanche 1500 4WD. Personalize. Add a Vehicle. 5.3 L, 8 cyl, Automatic 4-spd. 2002 Chevrolet Avalanche 1500 4WD. EPA Fuel Economy. Regular Gasoline.

My Selections. Years: 2000–2022. Make: chevy. (Showing 1 to 0 of 0 vehicles) Fuel economy of the 2000 chevy avalanche. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks.Used 2012 Chevrolet Avalanche Pricing. Used 2012 Chevrolet Avalanche pricing starts at $13,245 for the Avalanche LS Sport Utility Pickup 4D 5 1/4 ft, which had a starting MSRP of $40,845 when new ...Edmunds' expert review of the Used 2011 Chevy Avalanche provides the latest look at trim-level features and specs, performance, safety, and comfort. ... EPA-estimated fuel economy is 15 mpg city ...In today’s world, where environmental consciousness is on the rise and fuel prices continue to fluctuate, finding a car with excellent gas mileage has become a top priority for man...city. Highway MPG: 12. highway. 10.0 gal/100mi. Gas Mileage, greenhouse gas emission, air pollutant emissions and of model year Flex-Fuel (E85) Vehicles.ReelLove, 12/10/2009. 2005 Chevrolet Avalanche 1500 4dr Crew Cab LS 4WD (5.3L 8cyl 4A) LT2 & Z-71. This truck goes everywhere, anytime, in all conditions. 19+ mpg highway/13.5 mpg city. Will tow ...God those blizzaks were so much quieter. Keep in mind, when a 2500 is getting ~10-11 mpg, every additional mpg is a substantial increase. Right now, I'm averaging 11.0 mpg (calculated), and my best in the summer thus far has been 12.2 (calculated) and my best in winter was just shy of 13mpg. I do 90% highway driving.from other Chevrolet Avalanche vehicles . 97trophy fueled-up their 2009 Chevrolet Avalanche. Last Tank: 16.1 MPG 3 days ago; shepral fueled-up their 2013 Chevrolet Avalanche. Last Tank: 16.1 MPG 4 days ago; DDK319 had 1 best tank(s) for their 2007 Chevrolet Avalanche. Last Tank: 37.5 MPG 1 week ago; Nippon added 1 notes for their 2011 Chevrolet ...The most accurate 2008 Chevrolet Avalanches MPG estimates based on real world results of 1.2 million miles driven in 44 Chevrolet Avalanches ... 2008 Chevrolet Avalanche LTZ 6.0L V8 GAS Automatic 4 Speed Added Jun 2016 • 833 Fuel-ups. Property of …8.3 tons CO 2. Avalanche LT. vs. 7.6 tons. Avg. Large Truck. Yearly estimate based on your driving miles. Learn more about 2012 Chevrolet Avalanche. See all for sale. Try this quiz!The 1967 Chevy Impala gets an average gas mileage of 14.4 mpg. This translates to a range of 290 miles on a full tank. The exact mileage depends on the habits of the driver, traffi...

LT Sport Utility Pickup 4D 5 1/4 ft. $36,940. $8,295. LTZ Sport Utility Pickup 4D 5 1/4 ft. $43,670. $9,077. For reference, the 2007 Chevrolet Avalanche originally had a starting sticker price of ...

My Selections. Years: 2000–2022. Make: chevy. (Showing 1 to 0 of 0 vehicles) Fuel economy of the 2000 chevy avalanche. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks.Gas Mileage Tips; Driving More Efficiently; Keeping Your Car in Shape; Planning and Combining Trips; ... 2007 Chevrolet Avalanche 1500 2WD 8 cyl, 6.0 L, Automatic 4-spd Regular Gasoline: Not Available. How can I share my MPG? Combined MPG: 15. combined. city/highway. MPG. City MPG: 13. city.Need MPG information on the 2011 Chevrolet Avalanche? Visit Cars.com and get the latest information, as well as detailed specs and features. ... 21 MPG: Cruising Range - City: 465.00 mi: EPA Fuel ...2002. 13.8 Avg MPG. 93 Vehicles. 5,274 Fuel-ups. 1,622,092 Miles Tracked. View All 2002 Chevrolet Avalanche 1500s. The most accurate Chevrolet Avalanche 1500 MPG estimates based on real world results of 6.9 million miles driven in …Page 1. Fuel economy of the 2004 Chevrolet Avalanche 1500 4WD. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse … from other Chevrolet Avalanche vehicles . 97trophy fueled-up their 2009 Chevrolet Avalanche. Last Tank: 16.1 MPG 3 days ago; shepral fueled-up their 2013 Chevrolet Avalanche. Last Tank: 16.1 MPG 4 days ago; DDK319 had 1 best tank(s) for their 2007 Chevrolet Avalanche. Last Tank: 37.5 MPG 1 week ago; Nippon added 1 notes for their 2011 Chevrolet ... 2005 Chevrolet Avalanche 1500 4WD. Search by make for fuel efficient new and used cars and trucks Owner MPG Estimates 2009 Chevrolet Avalanche 1500 2WD 8 cyl, 5.3 L, Automatic 6-spd Regular Gasoline: View Estimates How can I share my MPG? Combined MPG: 16. 27.6. $2,950. 12.9 barrels/yr. 386 grams/mile. 368 miles. Total Range. Page 1. Fuel economy of the 2007 Chevrolet Avalanche 1500 4WD. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks.

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Fuel Economy of the 2011 Chevrolet Avalanche 1500 4WD. Compare the gas mileage and greenhouse gas emissions of the 2011 Chevrolet Avalanche 1500 4WD side-by-side with other cars and trucks2002 Chevrolet Avalanche 1500 4WD. Personalize. Add a Vehicle. 5.3 L, 8 cyl, Automatic 4-spd. 2002 Chevrolet Avalanche 1500 4WD. EPA Fuel Economy. Regular Gasoline.Gas Mileage Tips; Driving More Efficiently; Keeping Your Car in Shape; Planning and Combining Trips; ... 2008 Chevrolet Avalanche 1500 2WD 8 cyl, 5.3 L, Automatic 4-spd Regular Gasoline: Not Available. How can I share my MPG? Combined MPG: 16. combined. city/highway. MPG. City MPG: 14. city.All model years for the Chevrolet Avalanche. Research the 2004 Chevrolet Avalanche at Cars.com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory.Nov 9, 2023 · A smaller and more fuel efficient car just isn’t an option. The 5.3 Vortec ranges from 14-17mpg. However, there are a number of upgrades and modifications that can help add 3mpg. These mods are going to cost you around $1,200 but they will pay for themselves in just a few years with the added fuel savings. 2002 Chevrolet Avalanche 1500 4WD. Personalize. Add a Vehicle. 5.3 L, 8 cyl, Automatic 4-spd. 2002 Chevrolet Avalanche 1500 4WD. EPA Fuel Economy. Regular Gasoline.2002 Chevrolet Avalanche 1500 4WD Personalize Find a car: 8 cyl, 5.3 L, Automatic 4-spd Compare: Fuel Economy; EPA MPG: Regular Gasoline ... city. Highway MPG: 15. highway. 7.7 gals/100 miles . Unofficial MPG Estimates Shared by Vehicle Owners : View Estimates How can I share my MPG? Vehicle Specification Data; EPA Size Class More …On the highway, I usually average 14.5 to 15. ? I got one freeway tank that gave 15.8mpg, but I also had one at 13.9, so it averages out. I'd say count on 11 city and 14.5 highway would capture the situation on my 2500 LT 4X4 Avalanche. My Av has the 4.10 rear end (for towing) so it is a worst case senario.The most accurate 2010 Chevrolet Avalanches MPG estimates based on real world results of 712 thousand miles driven in 30 Chevrolet Avalanches ... 2010 Chevrolet Avalanche LTZ 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup Added Nov 2017 • 42 Fuel-ups. Property of Ohiobill . 16.4 Avg MPG.The Avalanche 2500 is only available with the 4L85-E. The ratios in this tranny will RUIN whatever hope for fuel economy you can think of. The Vortec 8100 in the HD trucks includes the Allison 1000 Automatic which has wonderful First and Overdrive gear ratios which place the Vortec 8100 in the mileage realm of the Vortec 6000 which only … ….

Jul 13, 2021 · Due to the issues with body cladding, weak transmissions, and the fact they are roughly 20 years old make the 2001-2002 Chevrolet Avalanches the worst years of the truck. If you’re deadset on a first-generation Avalanche and are into the body cladding, we’d recommend going for a 2003-2005 model. 24-year old Rahul Rai, who became a millionaire when he sold his crypto fund this year, believes the avalanche blockchain could be number one. Jump to As cryptocurrencies become in...The Edmunds TCO ® estimated monthly insurance payment for a 2005 Chevrolet Avalanche in Washington is: View detailed gas mileage data for the 2005 Chevrolet Avalanche. Use our handy tool to get ...13 MPG. 12 City. 15 Highway. Tailpipe Emissions. 11 tons CO 2. Avalanche 1500. vs. 7.6 tons. Avg. Large Truck. Yearly estimate based on your driving miles. Learn more about … Fuel economy of the 2008 Chevrolet Avalanche. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks. View detailed gas mileage data for the 2011 Chevrolet Avalanche. Use our handy tool to get estimated annual fuel costs based on your driving habits.7.7 gal/100 mi. 15.7. $4,200. 22.9 barrels/yr. 684 grams/mile. Range not available. Page 1. Fuel economy of the 2002 Chevrolet Avalanche. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks.2010 Chevrolet Avalanche LTZ 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup Added Nov 2017 • 447 Fuel-ups. Property of crappawpeterson . 15.4 Avg MPG. Blanche. 2010 Chevrolet Avalanche LS 5.3L V8 FLEX Automatic 6 Speed Added Dec 2020 • 3 Fuel-ups. Property of RomeRomz . 14.3 Avg MPG. Gas mileage on chevy avalanche, The Edmunds TCO ® estimated monthly insurance payment for a 2010 Chevrolet Avalanche in Virginia is: View detailed gas mileage data for the 2010 Chevrolet Avalanche. Use our handy tool to get ..., 18 MPG. 15 City. 21 Highway. Tailpipe Emissions. 8.3 tons CO 2. Avalanche LTZ. vs. 7.6 tons. Avg. Large Truck. Yearly estimate based on your driving miles. Learn more about 2011 Chevrolet..., 13,857. Jul 2, 2007. #2. the last time I checked my milage was before my cluster readout went blank and before I went to a smaller tire diameter. Still haven't bothered to get the cluster repaired or the speedo programed for the smaller tires... last check was around 133K miles, 02 Z66 with 22's (305/40/22 at the time)., Used 2006 Chevrolet Avalanche For Sale. MPG & Gas Mileage Data. View detailed gas mileage data for the 2006 Chevrolet Avalanche. Use our handy tool to get estimated annual fuel costs based on your ... , Advertisement Avalanche fatalities usually have one of three causes -- physical trauma, suffocation and hypothermia. Survival techniques involve getting out of the avalanche before..., Based on data from 46 vehicles, 4,231 fuel-ups and 1,296,541 miles of driving, the 2013 Chevrolet Avalanche gets a combined Avg MPG of 14.74 with a 0.10 MPG margin of error. Below you can see a distribution of the fuel-ups with 176 outliers (3.99%) removed. Following shows the average MPG of each of the 46 vehicles in the system. « 1. 2. 3. », Our preliminary E85 fuel economy estimates came out 20 to 25 percent lower than the Tahoe's 15 mpg city/21 mpg highway rating on gasoline. Reaching Las Vegas on a single tank of ethanol looked ..., Fuel Economy of the 2005 Chevrolet Avalanche 1500 4WD. Compare the gas mileage and greenhouse gas emissions of the 2005 Chevrolet Avalanche 1500 4WD side-by-side with other cars and trucks. ... 2005 Chevrolet Avalanche 1500 4WD EPA Size Class : Sport Utility Vehicle - 4WD: Drive: 4-Wheel or All-Wheel Drive: Stop-Start Technology:, Owner MPG Estimates 2011 Chevrolet Avalanche 1500 2WD 8 cyl, 5.3 L, Automatic 6-spd Regular Gasoline: Not Available. How can I share my MPG? Combined MPG: 17., 06 Avalanche. 2006 Chevrolet Avalanche 1500 Z71 5.3L V8 FLEX Automatic 4 Speed Crew Cab Pickup Added Oct 2017 • 144 Fuel-ups. Property of jagwizdz, Nov 9, 2023 · A smaller and more fuel efficient car just isn’t an option. The 5.3 Vortec ranges from 14-17mpg. However, there are a number of upgrades and modifications that can help add 3mpg. These mods are going to cost you around $1,200 but they will pay for themselves in just a few years with the added fuel savings. , Feb 12, 2012 · However I can get real world 20mpg +- on good smooth interstate driving. I am 5 miles from town, driving back and forth and a little in town driving and I am getting 13-14MPG. Add in the real city driving with a lot of stop and going + the hills, right back to 10 - 11mpg. , The Edmunds TCO ® estimated monthly insurance payment for a 2010 Chevrolet Avalanche in Virginia is: View detailed gas mileage data for the 2010 Chevrolet Avalanche. Use our handy tool to get ..., When it comes to choosing a 4WD SUV, one of the factors that often comes into consideration is gas mileage. Before diving into our list of top 10 vehicles, let’s first understand w..., Used 2004 Chevrolet Avalanche 1500 pricing starts at $6,866 for the Avalanche 1500 Sport Utility Pickup 4D 5 1/4 ft, which had a starting MSRP of $36,100 when new. The range-topping 2004 Avalanche ..., 2010 Chevrolet Avalanche MPG. Based on data from 30 vehicles, 2,045 fuel-ups and 709,830 miles of driving, the 2010 Chevrolet Avalanche gets a combined Avg MPG of 15. ..., Research the 2013 Chevrolet Avalanche at Cars.com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory. , The Edmunds TCO ® estimated monthly insurance payment for a 2009 Chevrolet Avalanche in Virginia is: View detailed gas mileage data for the 2009 Chevrolet Avalanche. Use our handy tool to get ..., Used 2011 Chevrolet Avalanche For Sale. MPG & Gas Mileage Data. View detailed gas mileage data for the 2011 Chevrolet Avalanche. Use our handy tool to get estimated annual fuel costs based on your ..., The Chevrolet Avalanche is a sporty, full-sized SUV with the towing power of a truck. Its 5.3-liter V8 engine offers great power, but a performance chip can help get the most out of that engine. A performance chip reprograms the Avalanche's engine computer for optimal power, allowing for improved throttle response and faster acceleration. , 2013 Chevrolet Avalanche 1500 4WD Personalize Find a car: Flex-Fuel Vehicle. 8 cyl, 5.3 L, ... Unofficial MPG Estimates Shared by Vehicle Owners : View Estimates, 6. Old or incorrect engine oil. Using the wrong type of engine oil or not changing the engine oil on time can lead to decreased fuel efficiency and reduced gas mileage in Avalanche. Engine oil is responsible for lubricating the engine components and reducing friction, which can improve fuel efficiency., Used 2002 Chevrolet Avalanche For Sale. MPG & Gas Mileage Data. View detailed gas mileage data for the 2002 Chevrolet Avalanche. Use our handy tool to get estimated annual fuel costs based on your ..., Used 2012 Chevrolet Avalanche Pricing. Used 2012 Chevrolet Avalanche pricing starts at $13,245 for the Avalanche LS Sport Utility Pickup 4D 5 1/4 ft, which had a starting MSRP of $40,845 when new ..., Fuel economy of the 2004 Chevrolet Avalanche 1500 4WD. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks., rb, 05/21/2010. 2002 Chevrolet Avalanche 1500 4dr Crew Cab 4WD (5.3L 8cyl 4A) 25 of 26 people found this review helpful. Bought my Avalanche with 12K miles in 2003, it now has 167K and going ..., 2002. 13.8 Avg MPG. 93 Vehicles. 5,274 Fuel-ups. 1,622,092 Miles Tracked. View All 2002 Chevrolet Avalanche 1500s. The most accurate Chevrolet Avalanche 1500 MPG estimates based on real world results of 6.9 million miles driven in 310 Chevrolet Avalanche 1500s., Planning a road trip can be an exciting adventure, but it’s essential to consider the cost of fuel. With fluctuating gas prices, it’s no surprise that many travelers are looking fo..., Symptoms. The most common signs of clogged catalytic converter in Chevy Avalanche are: limited performance above a certain speed or loss of performance, irregular running of the engine, unusual exhaust gas odor, poor fuel economy, engine check light illuminates, and sometimes rattling noises., 2008 Chevrolet Avalanche Overview. Launched in 2001, the Avalanche is Chevy's four-door, six-seat sport utility truck. Thanks to a full redesign in 2007, the 2008 Avalanche as an exceptionally functional hauler/tower and a surprisingly smooth highway cruiser. These features make the Avalanche one of the top-ranked sport utility trucks., Fuel economy of the 2008 Chevrolet Avalanche. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks., I am approaching 3000 miles on my 2011 with 3.42 gears. So far I have been averaging 10-12 MPG driving around city (to and from work at 25-50 mph streets). On my recent ~160 mile trip I was averaging around 16-17 MPG doing 70-80 mph. It does seem that milage is improving by around 1-3 MPGs since I got the truck., 2010 Chevrolet Avalanche MPG. Based on data from 30 vehicles, 2,045 fuel-ups and 709,830 miles of driving, the 2010 Chevrolet Avalanche gets a combined Avg MPG of 15. ...