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Discussion in 'Prime Fuel Economy & EV Range' started by bwilson4web, Jan 30, 2017.
I tried it, not deliberately, on my gen 2 prius. 1 gallon was enough to start the car.
Apparently on the EV line. I've been running w/o charging for the last 1,200 miles. <GRINS>
Okay. Next experiment is for someone to run out of gas with significant Ev mode charge remaining and see if it can be used to get them to the next gas station or home.
I keep 2 1 liter cans that used to contain pre-mixed 2 stroke gas in my storage compartment in the rear of my 2014 PIP. They seal really nicely (they were designed to carry fuel). I am at 11% averaged EV mileage overall and I ran out of fuel the other day at 585 miles.The last fillup I was able to coax 10.7 gallons into the tank, (inb4 "dont top off", "not safe to carry spare fuel," etc. I don't care, I do it every fill up, I haven't leaked fuel in 2 years please spare me!).
That being said I was able to go another 20 miles on the 2 liters but ran out AGAIN 6 miles from home in a mountainous area on a steep incline. The only data points I have to share are these:
2 liters was enough to get the car going but I was on a flat surface (parking lot) when I came to rest.
On the steep hill, I put in about 3 gallons from a 5 gallon container and it started fine.
I usually do not refuel until 40-50 miles after the warning light starts blinking.(usually starts blinking at 495-505 miles on trip odometer.
At that point, with approximately 540 miles on the trip odo, I can pump 10.5-10.7 gallons in. One time when I when 565+ on a tank I was able to put in 11 (Chevron pump, so assume accurate)
Thanks for volunteering, Lee.
Didn't we have an add a while back with 3 salesmen driving 3 different Primes 730 miles on one tank of gas. They got really low before finishing their trip without all the lights flashing, etc.
Even better, time to plan not to run out of fuel.
I don't have mine yet.
I read this as Bob in HV below the EV line and the ICE started so it could recharge the depleted battery in the HV area but ran out of fuel. So no fuel and no electric for the power steering. Wonder if just pulling and then replacing the fuse for the fuel pump/sending unit after adding fuel would also act as a reset. (CAN bus data from the fuelpump hmm.)
Remember to step on the brake to start/restart. These newfangled pushbutton cars.....
Lose all your onboard data with the 12v ground disconnected?
A couple gotcha's and a disclaimer
After recharging/reconnecting the 12-volt battery (or maybe after you have run out of gas)
Start the hybrid system with the power switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally from the second attempt.
The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected.
Do not disconnect the negative (-) terminal on the body side. The disconnected
negative (-) terminal may touch the positive (+) terminal, which may
cause a short and result in death or serious injury.
It has been my practice when running any experiment to replicate it in the future to further investigate what is going on. In particular, two things still bother me:
absence of a 'finally out of gas' indication - I did not have the display on power-flow which in the Gen-3 was the only indication the gas was finally gone. When I ran the first test, I didn't realize there was a boundary indicator between the EV vs. hybrid level. I'd only had a single charge before running the test and that was in Rhode Island. So I want to go back and see if there is EV charge the car still behaves the same way.
"power steering" is bogus because the car handled just as it did before. I would prefer to have at least a 'check engine' light but . . .
This part has me a little confused:
I was not very precise about the attempts to restart in part because this is a new car. However, from the Gen-1 cars forward, three attempts to start the car set a flag that prevents further attempts to start the car. This flag can only be cleared with a TechStream or ... Power-ON Reset of the 12V system. I don't know for sure that this 'three attempts and you are locked out' still exists in the Prime but I know how to find out. <GRINS>
It is easy enough to removed the ground connector on the battery. The B+ terminal is well protected by a plastic cover. A minor problem, the ground cable wanted to relax and touch the B- terminal. I had to hold it off but in the future would put a piece of paper or plastic to prevent it touching.
Bob, were you able to run on gas once the miles to empty odometer read 0? If yes, how much further were you able to go?
Sad to say, this was something I didn't handle well. I remember seeing ~64 miles / ~54 MPG which suggests a little over a gallon. This is something I'll pay more attention to on the next ones.
thanks for taking one for the team bob!
no takers on trying the oog experiment with a full ev charge?
Not in a year and a half. They are leaving that one for you.
sorry, prime is not on my radar. maybe i could take one for a test drive...
I am not sure they would appreciate you running it out of gas.
then they should have filled the tank.