Hi @kezo I missed that you charged it again before your return. Presumably at 22p per kWh that was on a private charger not a public one?
I can’t remember if the Tucson trip computer resets after each time you start the car or after each time you refuel. I’ll have to check with my 700 page manual when I get it later 😂
I’ve had another go at the figures based on 2 charges and this is what I come up with (bear with me 😂);
Let’s assume that your two charges got you 70 miles of EV driving . That’s 7.4p per mile for those 70 miles.
If we take the stated 53 mpg to relate to the whole 320 miles, the car is telling you that it consumed 6 gallons (320 miles divided by 53). Unless I’m missing something (let me know if I am), that’s going to be more accurate than a guesstimate based on the fuel gauge 😉. BUT once you deduct the 70 miles of that 320 that you were running in electric, that 6 gallons was actually consumed over just 250 miles, so that’s actually 41.7 mpg or 15.3p per mile for the miles when the car was running on petrol.
So your total cost was 70 miles x 7.4p per mile electric = £5.18 plus 250 miles x 15.3p per mile petrol = £38.25 petrol. Total cost for the journey £43.43 or 13.57p per mile.
Therefore, the ‘true’ mpg equivalent figure, when converting that 13.57p per mile into petrol cost, would have been 47.2 mpg (assuming £1.41 per lite = £6.40 per gallon divided by 13.57p per mile = 47.16 mpg), rather than the 53 mpg stated in the car.
I don’t intend to charge ours anywhere other than at home, so I think this confirms what I thought, that our local journeys will cost less than we pay currently in the BMW (7.4p per mile in the Tucson versus 15.3p per mile in the BMW) but longer journeys, where my BMW can drop to as little as 12p per mile, will be more expensive in a PHEV, as I will only get 35 ish miles electric and for the majority of the journey I’m carting around a very heavy car. Hopefully the greater number of local journeys will more than offset the extra costs of the longer journeys to make the faff of charging worthwhile🤞It will be far better for you as you do far more local journeys.
We have a 5 day holiday in September, and it will be interesting to see what the running costs are then, as I will leave home with a full charge but won’t be attempting to charge it whilst we are away (too much effort for too little return). I’ll try to work it out if it doesn’t depress me too much 😂
P.S. My electric charge is 21p per kWh so a bit better than that rate you quoted?
