Topic: Real-world fuel consumption

[Gurgie]

Filled up the 951 for the first time this season, managed to get 12L/100km outta the last tank. Not bad considering it was mainly short city trips & the amount of thrashing I do.

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[johngenx]

Those old Porsches are not very fuel efficient. That’s actually good economy. The engine management systems are not geared at all towards economy and they’re not terribly sophisticated anyway. Those early electronic injection systems are better than carbs by far, but nothing like systems today.

My 911 was damned thirsty for being only 3.3L, and drank copiously if you spent any time in boost. Considering the car felt slower than a Trabant off-boost, you tried to keep it in positive pressure as much as possible.

[mlin32]

So I might have mentioned, but my 308 has an app that communicates with my mobile phone and each trip's data included.

So for the 65km of rural roads (punctuated by many villages with radar, but only 1 light) on flat land and rolling hills, I achieved 4.7 l/100km. This was between the Hochsauerland and Marbourg (Hess) on national and departemental routes.

From Marbourg back home, it was wide open empty autobahn with almost no restricted zones so I was heavier on the throttle, average of 6.7 l/100km.

[Seafoam]

I'm getting about 9


Miles to the gallon in my Bullitt   

Wow . You really are enjoying it.   

[Gurgie]

Those old Porsches are not very fuel efficient. That’s actually good economy. The engine management systems are not geared at all towards economy and they’re not terribly sophisticated anyway. Those early electronic injection systems are better than carbs by far, but nothing like systems today.

My 911 was damned thirsty for being only 3.3L, and drank copiously if you spent any time in boost. Considering the car felt slower than a Trabant off-boost, you tried to keep it in positive pressure as much as possible.

Yeah, I think the best I've done is in the low 8's, and that's doing a long highway run from Ottawa to Toronto... I can do better with the JGC that weighs 2400lbs more... but it's not as entertaining 

[Ex-airbalancer]

Those old Porsches are not very fuel efficient. That’s actually good economy. The engine management systems are not geared at all towards economy and they’re not terribly sophisticated anyway. Those early electronic injection systems are better than carbs by far, but nothing like systems today.

My 911 was damned thirsty for being only 3.3L, and drank copiously if you spent any time in boost. Considering the car felt slower than a Trabant off-boost, you tried to keep it in positive pressure as much as possible.

Yeah, I think the best I've done is in the low 8's, and that's doing a long highway run from Ottawa to Toronto... I can do better with the JGC that weighs 2400lbs more... but it's not as entertaining 

What part of that drive is entertaining ?
Are you speeding on the cloverleaf in Belleville at 62 ?

[Gurgie]

Those old Porsches are not very fuel efficient. That’s actually good economy. The engine management systems are not geared at all towards economy and they’re not terribly sophisticated anyway. Those early electronic injection systems are better than carbs by far, but nothing like systems today.

My 911 was damned thirsty for being only 3.3L, and drank copiously if you spent any time in boost. Considering the car felt slower than a Trabant off-boost, you tried to keep it in positive pressure as much as possible.

Yeah, I think the best I've done is in the low 8's, and that's doing a long highway run from Ottawa to Toronto... I can do better with the JGC that weighs 2400lbs more... but it's not as entertaining 

What part of that drive is entertaining ?
Are you speeding on the cloverleaf in Belleville at 62 ?

The pulls from 60MPH - 100MPH in 5th gear are more entertaining 

[quadzilla]

Cambridge - Lake Placid = 7.4 L/100. Horrible stop and go traffic from Pickering-Cobourg then crossed over at Ogdensburg which just leaves quiet back roads to the end.

Lake Placid - Cambridge = 7.5 L/100.  All quiet back roads until I crossed over at Hill Island then into a head wind the rest of the way home.

Cruise set to 120 kph on the 401 with bursts while passing trucks, 100 kph on back roads through NY State, still on winter tires, and over 1/4 million kms on the GTI.

[Ex-airbalancer]

Cambridge - Lake Placid = 7.4 L/100. Horrible stop and go traffic from Pickering-Cobourg then crossed over at Ogdensburg which just leaves quiet back roads to the end.

Lake Placid - Cambridge = 7.5 L/100.  All quiet back roads until I crossed over at Hill Island then into a head wind the rest of the way home.

Cruise set to 120 kph on the 401 with bursts while passing trucks, 100 kph on back roads through NY State, still on winter tires, and over 1/4 million kms on the GTI.

30 years ago once you passed Morningside in Scarborough it was clear heading east

[Sir Osis of Liver]

Average for 20k of driving with Fusion Energi PHEV is 3.8.

As with any PHEV, fuel economy is significantly impacted by commuting distance.  Short commutes = little to no fuel consumption.  Longer commutes = more ICE time and this more consumption.

That's impressive for a big heavy car.

[johngenx]

^^^  Indeed!

[Blueprint]

Average for 20k of driving with Fusion Energi PHEV is 3.8.

As with any PHEV, fuel economy is significantly impacted by commuting distance.  Short commutes = little to no fuel consumption.  Longer commutes = more ICE time and this more consumption.

That's impressive for a big heavy car.

At the end of my weekly review, under January's worst, the Fusion Energi delivered a 3.1 avg. Even when using the cabin heater a lot, that thing was impressively efficient. I expect good things from the 2020 Escape PHEV.

[Bubba]

Wtf, how?  How is a Sonata getting 10's in normal city driving, and a V8 Lexus is getting 9's with spirited driving?

Where Ron lives doesn't count as city by any means - most roads have limits around 80km/h and there's virtually no traffic.

60 km/h speed limit roads filled with traffic lights on my way to work.

I brought my gps along for the ride to work today.  Here's why I record 10's in city driving.

Max speed 66 km/h
Avg speed 31 km/h
Moving time 16:28
Stopped time 4:56
Total time: 21:24
Stopped 23% of the commute.

[dkaz]

Your car should use no more than a litre per hour idling, so that's about 0.08L wasted idling in your vehicle over what I calculated to be 11 km so that means 0.7 L/100km. Warming up your car has a slightly bigger effect on your fuel consumption, I would say about 0.1 litres wasted warming up your vehicle in these warmer temperatures, more in the winter, so that's another 0.9 L/100km.

The biggest factor on your fuel economy is therefore any constant stopping and starting. If you were able to drive 60km/h the entire time, your Sonata's engine (I assume it's the 2.4) would use maybe 4.2 L/100km the entire way. You think it's impossible but no one ever tries driving that slow for a long time. With the warmup time, you're at 5.1 L/100km. But since you're idling, that's 5.8 L/100km. You're using 10 L/100km so you're wasting 4.2 L/100km on accelerating and braking alone. That's huge, and that's why hybrids are awesome in those conditions.

You can get better though. Accelerating is not the number one reason you're using a lot of gas, it's braking. Think about it, you used a certain amount of power to get to speed, only to waste it to friction which produces heat and sound. Hypermilers aren't immune to stop and go traffic, they just learn to anticipate traffic and traffic lights so that they almost never touch the brakes. Drivers in general are in such a rush to get to the next red light which is a waste of gas. Control your speed and throttle use so you get to a red light with minimal use of brakes, or even better yet time it so the light turns green as you get there.

It's not for everyone, there are drivers who will hate you.

[me_2]

My last 50 175km logged with my Volt 2013, commute heavy traffic every working day, long distance travelling (450km one day trip) on regular basis.

77% were e-km (EV) x 50 175 km => 38 635 e-km
7 857 kWh were used (including 1 025 kWh charger losses or 13.5%),
7 857kWH / 38 635 km => 20.34 kWh/100km average, losses included.
Note 1: the 15kWh from screen capture is somewhat wrong because blended average = 7 857 kWh / 50 175 km
Note 2: the 1.4L  / 100 km same blended average 716L / 50 175 km => 1.43L/100 km

Long distance using range extender and ERDT (below -10C) during winter:
50 175 km - 38 635 e-km = 11 540 km c/w 716L of gas => 6.21 L / 100 km average on range extender

May 21, second screen capture. How electric is efficient in heavy traffic condition

For clarification purpose, between step 1 and 2, my Volt was recharged.
Total Energy use the day 16.14 kWh total

Step 1 Start SOC 99.2%, End SOC 38%, 34.12km (highway), duration 00:49:08, usage 6.52kWh
Recharge
Step 2 Start SOC 100%, End SOC 64.3%, 21.41km, duration 01:06:32, usage 3.83kWh
Step 3 Start SOC 62.4%, End SOC 4.7%, 43.86km, duration  00:52:49, usage 5.79kWh
So, total "traveling " time is 2:49:06  :snif: but distance was only 99.39km driven, speed average 36.34 km/h in start/stop traffic most time (step 2 and 3)
In short:  5.90 kWh / hour but 16.23 kWh / 100km

Conclusion: imho EV is quite efficient, in heavy traffic condition...
 
Data logged source by FleetCarma, Charge the North program

[BWII]

Average for 20k of driving with Fusion Energi PHEV is 3.8.

As with any PHEV, fuel economy is significantly impacted by commuting distance.  Short commutes = little to no fuel consumption.  Longer commutes = more ICE time and this more consumption.

What?  When did you get that?  Must've missed the S&S.  How long is your commute?  I know I'd be wasting money getting rid of my car since it's owned and all, but sometimes I wonder if it would still make sense to have a hybrid or what you've got for my 34km one way commute.  And back again of course.  Sure would spend a lot less on gas.  But would have a payment on a car again.  Shoulda got one years ago...I'm just a stickler for pretty wheels and shi#. 

[Ex-airbalancer]

Average for 20k of driving with Fusion Energi PHEV is 3.8.

As with any PHEV, fuel economy is significantly impacted by commuting distance.  Short commutes = little to no fuel consumption.  Longer commutes = more ICE time and this more consumption.

What?  When did you get that?  Must've missed the S&S.  How long is your commute?  I know I'd be wasting money getting rid of my car since it's owned and all, but sometimes I wonder if it would still make sense to have a hybrid or what you've got for my 34km one way commute.  And back again of course.  Sure would spend a lot less on gas.  But would have a payment on a car again.  Shoulda got one years ago...I'm just a stickler for pretty wheels and shi#.

Dam, you connection speed must be slow if you are just getting this information now 

[BWII]

You are not wrong.  We're supposed to be getting fiber optic this year...and after 125 yrs, they're also finally paving our street.  I won't complain though, you can go through entire towns in SK and they'll have concrete curbs and sidewalks, but all the streets are gravel.  It's awful.  I bet their internet is better than ours though.

[EV-Light]

Average for 20k of driving with Fusion Energi PHEV is 3.8.

As with any PHEV, fuel economy is significantly impacted by commuting distance.  Short commutes = little to no fuel consumption.  Longer commutes = more ICE time and this more consumption.

What?  When did you get that?  Must've missed the S&S.  How long is your commute?  I know I'd be wasting money getting rid of my car since it's owned and all, but sometimes I wonder if it would still make sense to have a hybrid or what you've got for my 34km one way commute.  And back again of course.  Sure would spend a lot less on gas.  But would have a payment on a car again.  Shoulda got one years ago...I'm just a stickler for pretty wheels and shi#.

Don’t be surprised...PHEVs are the way to go even if you have a longer commute. Example here as of this am: Cmax, 2.5l/100km Mini: 4.1l/100km...

These cars are hard to come by in Manitoba but dealers are willing to drive them to you...


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[BWII]

14.58l/100 in the truck on the last tank - not bad, I guess.  Not great.  Or just over 16 mpg US or just over 19 Imperial mpgs for anyone as old as AB...no wait...he's full on metric guy.      Hey AB!  I started with l/100!!