Gas Mileage

[Dean2]

Was in B.C. earlier this week and went car chopping with my buddy. We took a brand new 2021 V6 3.6 litre Jeep Grand Cherokee for a test drive. Penticton to Kelowna return vehicle computer showed 25.6 Imperial MPG. Speeds vary quite a bit from 50 to 100 KPH. We weren't able to cross verify by hand calculating. We did however have my 5.7 litres V8 2020 Grand Cherokee to compare to. This was the first long highway trip we have taken the Jeep on, most of its miles are around town as my wife's daily driver. On the trip out, the V8 was showing 30-33 mpg on flat ground at 110 to 120 KPH. Hand calculating over the distance and each fill resulted in 1.0 Imperial mpg less than the computer was providing. Playing Ricky Road race in the hills and corners of B.C., computer was showing me 26-28 mpg over various fills. Again, hand calculating was 1.0 mpg less than the computer was recording. By all appearances the V8 gets as good or better mileage than the V6 option. Both vehicles were running exactly the same Perrelli Scorpion 20" all season tires. I believe the higher torque at lower RPM as well as the 3.04 rear end in the V8 versus the 3.54 in the V6 is what makes the biggest difference.


Chrysler gas mileage published for the V6



Hwy 9.6L/100 KM (29.43 Imperial mpg)


City 12.7L/100 KM (22.24 Imperial mpg)

I find it interesting that such large and powerful vehicles can get such good gas mileage. I have never liked small, or under powered vehicles. Gas mileage gains will never sell me on the idea of driving smaller cars.

Mileage from Edmonton to south of Calgary, including some city driving through Calgary for lunch and shopping. Recorded on the Trip A side. Tank holds 100 litters, used just under 1/3 tank in 386 kilometres. Provides a range of about 1200 kilometres per tank.






Gas mileage for a combined 13,792 klms, 98% of it in city driving. Recorded on the Trip B side, used for aggregating overall mileage to date. Hour counter goes to 99hours.60 minutes.60 seconds and resets to zero.

[gordfishing]

My F150 got 27 MPH from Calgary to Brandon at 123 kilometres per hour
3.5 eco boost

[Talking moose]

Was the 2021 broke in yet? If not it’s mileage should go up a few

[schleprock]

I was talking with a fellow who was driving a jeep gladiator that has the six cylinder diesel and he claims to get 40 mpg when not towing anything. Pretty impressive!

[Mr Conservation]

Originally Posted by gordfishing

My F150 got 27 MPH from Calgary to Brandon at 123 kilometres per hour
3.5 eco boost

I am assuming that is 27 MPG !!

Do you use your vehicle for towing ? I currently have a Tacoma with a 4.0 L engine - mileage is not the best, but quite a bit worse when I am towing my 20 foot Jayco travel trailer.

My son-in-law has a F150 and he says he is getting great mileage with it. I am thinking of trading my Tacoma in for an F150.

Mr Conservation

[elkhunter11]

Originally Posted by gordfishing

My F150 got 27 MPH from Calgary to Brandon at 123 kilometres per hour
3.5 eco boost

My combined mileage for 8000km is 11.5 l/100km. 500km to Saskatoon was 10.3 l/100km at 120km/hr..This is for a 2021 F150 3.5 4x4.

[fordtruckin]

Originally Posted by gordfishing

My F150 got 27 MPH from Calgary to Brandon at 123 kilometres per hour
3.5 eco boost

Definitely doable my 2018 f150 with EB gets 22-24 US mpg so I definitely believe going from a 3.8l gallon to a 4.55l gallon would bump the mileage up. I generally drive like a grandpa though so speeds are around 65-70mph.

My wife’s 2017 Jeep Cherokee is the first vehicle I owned that got the same as or better mileage then the windows ticket stated. Have been very happy with that vehicle!

[Gade81]

Indeed mpg is more attainable in big vehicles than it used to be. Over my first 4000 some kms my 6.2 trail boss sitting at 15.7 l/100. My 5.3 doing the same type of driving was slightly worse though i trust once winter hits it'll get worse as well. Chevy computer tracks last 100 kms as well and notes the best results. To date a 9.9 is as good as I've gotten, Calgary to Lethbridge. My buddy has baby duramax and his best 100km stretch was 6.8, that's about 42 mpg's. I think his life average over 10000 ish kms is at 11 ish, and he pulls cargo trailer at least once or twice a week for work. Now thats darn impressive

[Savage Bacon]

Originally Posted by Dean2

Was in B.C. earlier this week and went car chopping with my buddy. We took a brand new 2021 V6 3.6 litre Jeep Grand Cherokee for a test drive. Penticton to Kelowna return vehicle computer showed 25.6 Imperial MPG. Speeds vary quite a bit from 50 to 100 KPH. We weren't able to cross verify by hand calculating. We did however have my 5.7 litres V8 2020 Grand Cherokee to compare to. This was the first long highway trip we have taken the Jeep on, most of its miles are around town as my wife's daily driver. On the trip out, the V8 was showing 30-33 mpg on flat ground at 110 to 120 KPH. Hand calculating over the distance and each fill resulted in 1.0 Imperial mpg less than the computer was providing. Playing Ricky Road race in the hills and corners of B.C., computer was showing me 26-28 mpg over various fills. Again, hand calculating was 1.0 mpg less than the computer was recording. By all appearances the V8 gets as good or better mileage than the V6 option. Both vehicles were running exactly the same Perrelli Scorpion 20" all season tires. I believe the higher torque at lower RPM as well as the 3.04 rear end in the V8 versus the 3.54 in the V6 is what makes the biggest difference.


Chrysler gas mileage published for the V6



Hwy 9.6L/100 KM (29.43 Imperial mpg)


City 12.7L/100 KM (22.24 Imperial mpg)

I find it interesting that such large and powerful vehicles can get such good gas mileage. I have never liked small, or under powered vehicles. Gas mileage gains will never sell me on the idea of driving smaller cars.

Mileage from Edmonton to south of Calgary, including some city driving through Calgary for lunch and shopping. Recorded on the Trip A side. Tank holds 100 litters, used just under 1/3 tank in 386 kilometres. Provides a range of about 1200 kilometres per tank.






Gas mileage for a combined 13,792 klms, 98% of it in city driving. Recorded on the Trip B side, used for aggregating overall mileage to date. Hour counter goes to 99hours.60 minutes.60 seconds and resets to zero.

I've never thought of hand calculating mileage vs what my vehicles say. 1 mpg difference at 33 mpg doesn't seem too out of line to me. What difference do you usually see? My Silverado with 35s is doing around 120 km/h when it says it's doing around 110 km/h. I like how it keeps my total mileage lower than it really is

[sako1]

36mpg in a 500hp vette. Consistently.

[schreyer]

I would usually average around 13.2 for my 5.0l f150. I bought a super chips for it and now I’m getting around 11.8-12l/100km.

[daveyn]

I find the mileage reported by the vehicle computer is about 1l/100 lower than it actually is. My Silverado computer consistently has me at 11 to 11.5 l/100K however when I do a quick confirmation calculation at the pump the actual is more like 12 to 12.5. Everything on the truck is stock standard so nothing out of line there.

[roper1]

Originally Posted by sako1

36mpg in a 500hp vette. Consistently.

Sell that thing! You getting that good a mileage you're not driving it right...

[Talking moose]

Originally Posted by sako1

36mpg in a 500hp vette. Consistently.

I suppose since 60 mph on the hiway is what the engine idles at. Nice.

[elkhunter11]

Originally Posted by sako1

36mpg in a 500hp vette. Consistently.

With such a light vehicle, and so little wind resistance, the vehicle uses very little of that power.

The wind resistance seems to be what really limits the mileage with trucks, if I watch the fuel meter on my F150 at 80km/hr, the fuel mileage drops to well under 10 l/100km, but I am not that desperate for mileage, to drive that slow on the highway.

[Gade81]

Originally Posted by daveyn

I find the mileage reported by the vehicle computer is about 1l/100 lower than it actually is. My Silverado computer consistently has me at 11 to 11.5 l/100K however when I do a quick confirmation calculation at the pump the actual is more like 12 to 12.5. Everything on the truck is stock standard so nothing out of line there.

My new Silverado is the first vehicle I’ve owned that the computer is pretty much deadly accurate. Every other vehicle I’ve owned the computer always read better than actual. Sometimes a couple mpg’s at least


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[Dean2]

Originally Posted by Gade81

My new Silverado is the first vehicle I’ve owned that the computer is pretty much deadly accurate. Every other vehicle I’ve owned the computer always read better than actual. Sometimes a couple mpg’s at least


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It was pretty common for the old computers to be out 10-20%. The newer ones seem to be a lot closer, but from what Daveyn says his Silverado is out in the neighbourhood of 10-12%. Anything that is accurate within 5% I would call pretty good and 5% of 33 would be 1.7 mpg so the Jeep is on target. I would have been VERY happy if the Hemi averaged 25 regularly on the highway and 16-17 or so in town. 21 in town and 30 highway just blows me away for a rolling box that has 360 horse and 390 ft/lbs of torque.

Like Old Ford said, this Jeep is only the second vehicle I have ever owned that actually does substantially better than the posted numbers (Typical Jeep posted numbers are 14 U.S. mpg/17 Imperial mpg City and 22 U.S./26.5 Imperial Highway for the Hemi V8) almost all of the time. The other is a Lexus GS430. Any other ones were always quite a bit less than the posted EPA mileages.

[tool]

In my Dodge diesel what the overhead reads in US mpg is roughly what you get in imperial gallons.

[Reeves1]

My little car gets 6-8 MPG ....if I take it easy

[Spidey]

We drove to Whistler a couple weeks ago. Left Canmore with a full tank and drove 800/km and filled up just outside Pemberton, which took just over 27L.

3.4l/100km or 69mpg

2018 Prius Prime. Was able to fully charge 3 times while driving on the way, coming down mountain passes. Even with gas at 1.67/L in Pemberton, we were able to drive to Whistler for just over $45

[Spidey]

Originally Posted by Dean2

It was pretty common for the old computers to be out 10-20%. The newer ones seem to be a lot closer, but from what Daveyn says his Silverado is out in the neighbourhood of 10-12%. Anything that is accurate within 5% I would call pretty good and 5% of 33 would be 1.7 mpg so the Jeep is on target. I would have been VERY happy if the Hemi averaged 25 regularly on the highway and 16-17 or so in town. 21 in town and 30 highway just blows me away for a rolling box that has 360 horse and 390 ft/lbs of torque.

Like Old Ford said, this Jeep is only the second vehicle I have ever owned that actually does substantially better than the posted numbers (Typical Jeep posted numbers are 14 U.S. mpg/17 Imperial mpg City and 22 U.S./26.5 Imperial Highway for the Hemi V8) almost all of the time. The other is a Lexus GS430. Any other ones were always quite a bit less than the posted EPA mileages.

I had a 2016 Jeep Cherokee Sport as a company vehicle and it averaged 7.8L/100km or around 30mpg. Initially, I thought that was quite good for an AWD vehicle, but soon realized that the mileage didn't make up for the lackluster 9 speed transmission...

[HyperMOA]

Originally Posted by Reeves1

My little car gets 6-8 MPG ....if I take it easy

Don't those cars regularly burn 30 gallons with the back end only moving a few inches? I'm just yanking your chain.

[Ken07AOVette]

also most of the domestic vehicles are calibrated for yankee MPG at 3.78L/gallon not 4.54

Hand calculating will show this

[Dean2]

Originally Posted by Ken07AOVette

also most of the domestic vehicles are calibrated for yankee MPG at 3.78L/gallon not 4.54

Hand calculating will show this

On the Dodge and Jeep vehicles you have the option to calculate and display mpg as U.S. or Imperial, l/100 or klm/liter, while still showing speed and distance in Klms. Also have the choice to show mph and miles for distance. This is true of all of their international export vehicles. I did not know that Ford and others didn't do the same on their international export vehicles.

[Sundog57]

2016 F-150 3.5 V6 non-turbo 165k kms
lifetime fuel consumption 10.8L/100 = 26.16 mpg imp or 21.78 mpg US
No towing.
The newer ones are better than that

[huntinstuff]

I have a 2016 Dodge 1500 3.6 V6

98l tank

I make a round trip to Canmore (806km) and 179 km around the area before my gas light comes on. So almost 1000km on a tank. I havent done the math but for a truck i think its good

[sako1]

Originally Posted by elkhunter11

With such a light vehicle, and so little wind resistance, the vehicle uses very little of that power.

The wind resistance seems to be what really limits the mileage with trucks, if I watch the fuel meter on my F150 at 80km/hr, the fuel mileage drops to well under 10 l/100km, but I am not that desperate for mileage, to drive that slow on the highway.

Well of course! Lol I wouldn't be bragging if it was a car with a pathetic engine.

[gordfishing]

My F150 got 27 miles per gallon from Calgary to Brandon at 123 kilometres per hour
3.5 eco boost

home trip Brandon to Calgary only 22 miles per gallon but 123 kilometres per hour

great truck

[waldedw]

Best I have got out of my 2021 silverado 3500 with the duramax in it is 12.4 lt / 100 or 23.07 MPG which I verified on the fill up and over a. 1300km round trip with a bit of city driving included in Calgary, it's not broke in yet so I think it will get better after 20,000 KM or so

[Dean2]

I am going to be very interested to see what the new Dodge 2500 with the 6.4 Hemi does for gas mileage, if it ever finally gets here. Was built June 26th and still shows in transit. Dodge doesn't post any EPA estimates for their 2500 and larger trucks.