Self-charging fuel use in a 2023 outlander PHEV

[Jedinsky]

Hi All

I FINALLY found information about idle charging fuel use.

for those who don't want to watch the video, its 2.58KWh/L

numbers should be identical for the 2024. i have no idea what the 2025 will be.



its insanity that MMC doesn't just tell us this, the numbers aren't even bad, "literally cheaper than using fast-chargers" would be a great selling point.

 

[PHEV07]

Hi All

I FINALLY found information about idle charging fuel use.

for those who don't want to watch the video, its 2.58KWh/L

numbers should be identical for the 2024. i have no idea what the 2025 will be.



its insanity that MMC doesn't just tell us this, the numbers aren't even bad, "literally cheaper than using fast-chargers" would be a great selling point.

2025 numbers should be identical as very little has changed between the 2023 to 2025 Vehicles

 

[twiggy144]

Findings from the same video above:

Time to recharge the 20kwh battery from empty to 80% : 94 minutes
Fuel burn during this time: 6.2 liters
Fuel burn rate for recharging ( vehicule stationnary) : 6.2/94*60 = 3.96 liters per hour
range achievable with this recharge: 80% x 61 km = 49 km
liters per 100 km used for this recharge: 6.2 / 49 *100 = 12.6 liters per 100 km

Conclusion:

I observed so far My 2025 Outlander burns 10.6 liters par 100 km when running exclusively on gas. This means it is not worth using the recharge mode , which burns 12.6 liters for 100 km of range.

 

[Polyian]

So when cruising down the highway at 100 kph how much incremental fuel would be burned? Is there formula to estimate L/ 100 KM fuel economy while charging on flat terrain? Surely there is some economy to traveling distance while the engine is charging? You are correct, depending on fuel cost, this is cheaper than using public 'Fast' chargers and you don't need to wait to charge.

 

[michael8554]

"it is not worth using the recharge mode , which burns 12.6 liters for 100 km of range."

Can you clarify that 100km is using 12.6L of gas and the charge accumulated by Charge mode ?
I find that 100km would consist of about 40km of Charged energy and 60km of gas.

 

[twiggy144]

"it is not worth using the recharge mode , which burns 12.6 liters for 100 km of range."

Can you clarify that 100km is using 12.6L of gas and the charge accumulated by Charge mode ?
I find that 100km would consist of about 40km of Charged energy and 60km of gas.

When and if the véhicule is stationnary, not moving, ICE in CHARGE mode, it will burn 6.2 liters to charge 80% of the battery. This 80% will give a range of 49 kilometers on battery only.
Equivalence for 100 km is : 6.2/49*100 =12.6 liters per 100 kilometers.

In other words, you would be burning 12.6 liters in charge mode ( véhicule parked and not moving) to have 100 of driving range with battery.

I do not know yet how much more gas the véhicule burns in CHARGE mode, while in motion, city or highway driving, compared to NORMAL or SAVE mode. I don’t know either how much battery recharge percentage is achieved per unit of time while driving in CHARGE mode. I think this data is unknown to the community. Yet to be tested.

 

[michael8554]

But you use those stationary figures to justify that "it is not worth using the recharge mode "

 

[Polyian]

When and if the véhicule is stationnary, not moving, ICE in CHARGE mode, it will burn 6.2 liters to charge 80% of the battery. This 80% will give a range of 49 kilometers on battery only.
Equivalence for 100 km is : 6.2/49*100 =12.6 liters per 100 kilometers.

In other words, you would be burning 12.6 liters in charge mode ( véhicule parked and not moving) to have 100 of driving range with battery.

I do not know yet how much more gas the véhicule burns in CHARGE mode, while in motion, city or highway driving, compared to NORMAL or SAVE mode. I don’t know either how much battery recharge percentage is achieved per unit of time while driving in CHARGE mode. I think this data is unknown to the community. Yet to be tested.

Yes it would be interesting to have some data on fuel economy while driving 100 KPH in charge mode on flat terrain. I don't get out for highway runs very often to collect data.

 

[Rudra]

This 80% will give a range of 49 kilometers on battery only.
Equivalence for 100 km is : 6.2/49*100 =12.6 liters per 100 kilometers.

..and what if the range was 79 kilometers !?

 

[twiggy144]

But you use those stationary figures to justify that "it is not worth using the recharge mode "

Not worth using the recharge mode, vehicule parked, to gain range on EV mode. Better off driving on the ICE, which will burn less fuel.
I dont know how I can explain this any better. Maybe some else can jump in.

 

[twiggy144]

..and what if the range was 79 kilometers !?

I dont understand your question. I wrote when the vehicule is parked, ICE running in CHARGE mode, it will stop charging after 94 minutes of charging, based on the video above. The battery will be charged from zero to 80% after this 94 minutes of charging. This 80% charge will allow you to drine 49 km in EV mode.

 

[twiggy144]

Yes it would be interesting to have some data on fuel economy while driving 100 KPH in charge mode on flat terrain. I don't get out for highway runs very often to collect data.

One day I might do a 50 km round trip in SAVE mode. Then do the same 50 km round trip in CHARGE mode in same atmospheric conditions, and will note the state of charge level before and after the 50 km round trip. The difference in fuel burned ( measured by comparing liters per 100 km) in the 2 modes should be fuel burned to recharge the battery fore the most part. Hence I will have liters of fuel burned and number of bars of battery recharge (or % increase) .

Knowing a full 100% battery has 20 kwh of energy stored, (or 61 km of driving range), this will give liters per kwh of battery recharge, or by extension liters of fuel burned for an extended EV km range.

 

[Rudra]

range achievable with this recharge: 80% x 61 km = 49 km
liters per 100 km used for this recharge: 6.2 / 49 *100 = 12.6 liters per 100 km

Conclusion:

I observed so far My 2025 Outlander burns 10.6 liters par 100 km when running exclusively on gas. This means it is not worth using the recharge mode , which burns 12.6 liters for 100 km of range.

I am doubting your supposition of 49 km.

Also your "10.6 liters par 100 km when running exclusively on gas" seems to be on the high side.