I am having a problem with all the tests claiming that the PHEV will get a combined mpg figure of 25 with the battery depleted and 56 MPGe. First of all, why would you ever have a completely depleted battery short of a long highway trip with no braking? This does have regenerative braking, correct? My understanding is it will alway have 10% charge, even if it uses the gas engine to maintain that, so that you always have the full 323 hp when needed. So, with the battery always available like a normal hybrid, but not fully charged (and basically driving like an EV), what should the average combined mpg be? No way, should it be 25 mpg. If the Highlander with a 2.5 gas engine gets 35+ I would expect the CX90 to be closer to that figure. In normal mode, it should cycle between gas and EV mode like any hybrid since it is a normal hybrid, just with a much larger battery. Am I missing something? Maybe I don't fully understand what MPGe is? What I believe it is is an equivalent measure of how far a vehicle can travel on one gallon of gasoline. Which doesn't mean too much. Basically, with full charge, you get about 25 miles from battery plus 25 more miles with a gallon of gas so thats about 50. If MPGe really means the comparable mpg for a full tank than I would be happy with 56 but I don't think it does. Longer tests of the CX60 PHEV are usually claimng 35-45 mpg combined with daily charging. That makes sense compared to a Highlander since the CX90 doesn't have the soul crushing CVT and considerably more power. Am I missing something?
MazdaMan
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The ride was great, wished the phev has 2nd row ventilated seats... Also the tires came with 42psi, glad I checked before I went on the trip, I had to release the psi to 36 for the front and 39 for the rear per sticker, and the ride is much more comfortable compared to 42psi.
No issue passing cars even when driving uphills, good power.
No issue passing cars even when driving uphills, good power.
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4 Posts
Hello, based on my weekly travel with about 80 miles trip experience, it takes about 1/8 of the tank with fully charged battery on standard mode, sometime a little over 1/8 from the odometer.
Traffic here everywhere in LA highway even in weekend, so takes that into consideration.
The thing is that it doesn't really show you gas only mpg unless you don't use battery at all from your trip.
That 1/8 tank of the odometer is about 2 gallons.
The battery doesn't last long if you drive up hills or make many stop and go where you have to do a lot of acceleration so the battery really can go between 10 miles (my shortest) to my highest 28 miles.
You could really think that the battery would just save you 1 gallon of gas per day in your scenario.
And you have to charge about 15kw daily (based on chargepoint history). If you don't have solar and if your kw per $$ is high, then you could find that you are paying more for your commute with cx90 phev than just gas unless you get free charge somewhere. Just fyi.
Hope this helps.
Traffic here everywhere in LA highway even in weekend, so takes that into consideration.
The thing is that it doesn't really show you gas only mpg unless you don't use battery at all from your trip.
That 1/8 tank of the odometer is about 2 gallons.
The battery doesn't last long if you drive up hills or make many stop and go where you have to do a lot of acceleration so the battery really can go between 10 miles (my shortest) to my highest 28 miles.
You could really think that the battery would just save you 1 gallon of gas per day in your scenario.
And you have to charge about 15kw daily (based on chargepoint history). If you don't have solar and if your kw per $$ is high, then you could find that you are paying more for your commute with cx90 phev than just gas unless you get free charge somewhere. Just fyi.
Hope this helps.
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4 Posts
I believe it does retain certain amount of battery for boost, whenever I used up all the battery, it charges for around 14.5~15kw to full. since the battery per Mazda is 17.8kw, it may be reserving 15~20% battery for boost and stop at traffic light for idle regardless.
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just did a trip from LA to Las Vegas, used first ~28 miles for pure EV then put in charge mode and charge up 80% in about 80 min drive. seems that when it is going uphill, the charging mode isnt doing anything but drained the battery faster than charging even in standard mode. it charges fast during the downhill though.
Also it stopped charging for about 30min, not sure if it is the heat (~115F outside) or the battery over heating, the heads up display started vanishing from the top is when i noticing it is no longer charging when in charge mode. After I stopped at barstow for a quick break, the heads up display started to work and charging mode started to work.
I did not have chance to use any of the free charging station at Vegas, it is too hot outside.
bottom line, the trip MPG ended up 30.3mpg, better than my previous CX9 with 23.8mpg.
interesting though, driving about 85mph seems to have better mpg than driving 75mph based on the odometer info.
Also it stopped charging for about 30min, not sure if it is the heat (~115F outside) or the battery over heating, the heads up display started vanishing from the top is when i noticing it is no longer charging when in charge mode. After I stopped at barstow for a quick break, the heads up display started to work and charging mode started to work.
I did not have chance to use any of the free charging station at Vegas, it is too hot outside.
bottom line, the trip MPG ended up 30.3mpg, better than my previous CX9 with 23.8mpg.
interesting though, driving about 85mph seems to have better mpg than driving 75mph based on the odometer info.
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