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Week 3 of FMM and RoD Paddle Delays

1161 Views 7 Replies 8 Participants Last post by  BigYeff
Hi All,

Bought my 2017 g2 Volt last April (2016). As usual, the car came with a full tank of gas from the dealer. My daily commute is 20 miles round trip on local roads and I seldom do more than my commute or local errands. I've touched the range extender so infrequently that I was hit with FMM on a full tank. I'm now in week 3 of driving with gas and can't wait for this to end!

My biggest complaint, aside from having to pollute and my EV range dropping from 64 miles down to 59 already, is that the Regen On-Demand feature that I use religiously just doesn't work the same when in this mode. I'm used to slowing my Volt down with the RoD paddle. When the range extender is on, it seems that holding the paddle first waits for the gas engine to stop and then it applies - which typically takes about 5 seconds to work. That's a long delay when I'm used to easing off the accelerator peddle and holding the RoD paddle to slow down.

Anyway, I have 140 miles left on the gas tank so at this rate, maybe I'll be back to driving in pure EV next week. I definitely won't be filling the tank after this ;-).
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Can someone please explain the relationship between the amount of fuel in the tank and FMM running? Shouldn't you be forced to use up old fuel regardless of how much is in there?
FMM will run until you use it all, OR, until you add enough fresh gas to change the average age of the entire tank. So, if FMM started while the tank has 8 gallons in it. You ran out 4 gallons then put 4 fresh gallons in, you would have 8 gallons whose average age has been changed to 6 months old. Now FMM will start again in only 6 months. The only way to get the full 12 month window back is to let FMM use all of the old gas, then only refill with 2-3 gallons of fresh.
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