I visited this thread hooked by fuel consumption issue, because I just bought 2022 Outlander PHEV SEL model in Florida, US.
Most of the people except who drives supercar or super-looks-car concerns about Gas Mileage. As I have been lived my most of the time with ICE cars only. Just from decade ago, several type of Electronic Car becomes popular and especially EV manufacturer emphasize fuel economy compare to ICE cars. Thus, I was hoping to hear valuable advices from this thread.
But see what is going on this thread. Somebody blames other by claiming that it is wrong. I totally disappointed in such argument. Whether he or she is right or wrong, we cannot blame somebody else. We all might be wrong on this matter. Thus, I just write my opinion disregarding whether it is right or wrong, and kind ask you not to blame me but teach me either with your personalized experience or based on the deep knowledge of the car and its technology.
When we return to CAR fuel consuming cost, we first start with the fact that what kind of car I am driving. Electric Bike, Motor Bike, Compact 2 seater, Compact 4 Seater, Regular Sedan, Compact SUV, Mid size SUV, Heavy duty SUV, Luxury SUV, Pick up Truck, Convention Van, Mini Van, ETC. Think about what kind of car you have been driving so far. Also, We have to recall how important Fuel efficiency when you choose the car. Strangely, fuel efficiency is seldom to be a standard selection but all of a sudden, it becomes important factor when driving a car after purchase. Someone choose the SUV for family safety and pay a lot of money on SUV instead of cheap Sedan which shows higher fuel efficiency but he expects fuel efficiency of sedan. As a result, he is looking for the best way to drive SUV with less fuel consumption. If there exist the ways to save cost of fuel in SUV, that will be a miracle. Or, he can buy a less option installed SUV to save gas consumption with similar cost of Luxuries Sedan, expecting saving running cost. It will not happen like this.
OK, Let return to main issue of Mitsubishi Outlander PHEV fuel economy.
Quote from littlestrote
"Whether it's more economical to use Normal, Charge or Save all depends on the specific journey you are doing at the time."
Unquote
I am totally agree to this expression. Especially PHEV fuel economy relies on Journey. In my case, I drive 1000miles, 1600kms per year. According to calculation, I do not need gasoline at all since my journey is less than 20miles, 36kms per day and only wall charging is enough. Thus Gas Mileage is unlimited. If the situation is like this, any car has unlimited gas mileage, only if it is PHEV, to me. I choose the 2022 Outlander PHEV only because I found lowest offer on the market among PHEV. I need PHEV not because of high gas mileage but because of low purchasing price with factory warranty, even though there are more cars with fuel efficiency, with similar or better quality. One of the reason why people love to buy this car may not be the fuel efficiency, but because it is hard to find PHEV in the market. Toyota and Honda does not have PHEV in this class. There is Rav-4 but when I drive a car, it feels like steel box. Strangely, Car manufacturer try to cut the production of PHEV but to manufacture EV cars more. I guess PHEV is more expensive to produce but less effect in fuel cost than Pure EV.
OK, Lets go back to the issue, which is the most economical way to drive Mitsubishi Outlander PHEV if the journey is fixed circumstances?"
The answer will be different according to the character of Journey, however, the result has no distinguishable difference of fuel economy. The car software will try to use less fuel in any position. Each position has different aim(purpose) to run the vehicle but not to minimize the fuel consumption. EV mode is not for less fuel consumption, but for quite driving a certain distance because when battery drops to a certain degree, ICE will run by using gas. Charge mode is not for gas saving but maintain full battery to use battery in other purpose like camping, emergency power back up. In this mode, ICE is used for moving the car, supply 12v system in the car and top charge the battery. No electric motor engaged. We don't need this mode if we do not use this car as extra power source. Eco and Natural is same consuming fuel but generally less power when driving. This will save a little of gas but when we calculate to money saving, it is neglectable. Living near a cheaper gas station will save more money. Please refer following experiment.
There was an experiment that how the driving attitude will affect the fuel consumption. One case is fast acceleration with fast brake and the other case is modest driving all the way. As we may guess, first case consumes more fuel than second case. But those testers, when they drive the car in the city, say that the difference is so little to be noticeable when calculated to currency. Not like in the Lab, it is not easy to drive for general people fast accelerate or quick stop unless emergency, and also not easy to drive moderate always. The conclusion of the above test on old ICE car, the difference driving mode does not strongly affect fuel economy in general.
OK, then we turn the issue to that "Is Mitsubishi Outlander PHEV is best choice in fuel economy?"
The answer is No. According to the Laws of Physics and/or Low of energy, fuel economy is mostly affected by the weight of Car. However, we cannot compare this with other cars as apple to apple, because every PHEV has different battery capacity and ICE. Simple comparison is that the car is lighter, fuel consumption is low, except ICE super cars. (ICE engine has very special character that all gasoline burn is not transferred to power to use moving car. This is why EV cars are fast in start line - Mensa will know this, but electric motor use most electric energy to turn rotors) So the hybrid engine car fuel efficiency will be affected by the size of the ICE engine, not considering Drive Battery size . More loss of fuel efficiency comes from ICE. There are many hybrid cars using smaller ICE engine than Outlander and manufacturer try to make lighter weight cars to suit to this small engine. Those cars have more fuel efficiency. But they lose driving comfort and other Luxurious things like power options. Also the tires affect fuel efficiency as seen an BMW i3. We find many argument in the internet regarding less fuel cost but more cost to buy. Less fuel cost but less comfort.
All above information are purely based on my personal experience of driving a car as non-mechanic for 50 years. I once drive Hyundai Pony, Honda civic, Sonata, Impreza, Frontier, v60, Continental, Accord, X1, X3, 330i, M3, 340Mi, Z4, Boxster, SC430, CT200h, Ioniq ETC. Compare to the cars running on the street, very limited experience, I admit. But fuel efficiency was never been a priority option, because if I put first priority to fuel consumption, it requires more sacrifice of other options when compare the car quality.
I believe fuel efficiency does not save real money but make us a little bit happier, thinking I am spending less money on journey, while there are practical other ways to save actual money when buying a car. In reality, If I buy more fuel efficiency car with less pay, I would not be happy because of missing options on the car. Everybody knows that we pay more money on Hybrid car expecting money saving on Fuel, while the ICE only car is more cheaper than fuel saving from Hybrid. Compare the price of regular Outlander and PHEV outlander. Do you think you can save that sale price gap by saving a fuel?
But we as an Earth Citizen, and Car manufacturer as a savor of the earth environment, should accept valuable change to future tech for earth. That is why we pay more money to EV car instead ICE. PHEV owner is a little bit shy(hesitate) to adapt big transition to only EV car at the moment but has desire to enjoy modern tech.
There is no short cut to save fuel cost in any way once you choose the car. Your car will consume gas according to the car itself, journey itself, not by driving behavior. Once you buy a car, there is no way to more save on money, such as several hundred dollars of fuel cost by selecting driving mode.
This is real story form Environmental Movement guy. He says "To protect environment, do not flush water from toilet until it starts smell."