GM Volt Forum banner


1655 Views 16 Replies 11 Participants Last post by  Mr X
Sorry if wrong place BUT... I have a question. As most new Volt drivers are... I'm becoming obsessed with the best mileage. I will be about 75/25 electric/"fuel" miles. What is the optimal speed to "drive gas"? I'm sure highway is probably the most efficient time to use hold correct? Is there an optimal speed? 60, 65, 97, 70? I'm sure flat vs hills, slow grades vs steep all make a difference I'm just currious. Btw I've got about 70miles on gas and I'm at 40.2 :) around 215ish overall mpg with somewhere around 350 miles +-20.

Loving it btw :)
1 - 1 of 17 Posts
My scenario was I was about 5 miles short of EV and I couldn't decide if it would be better to use the gas on the highway and EV on the backroads.
Your manual may have had this information:

Electric range is maximized at 80 km/h (50 mph) and below. Higher speeds use more energy and can significantly reduce electric range.
So above 50 mph is the better time for using hold mode.

I also wondered if using mountain mode was a good idea when I was out of EV, for say 10 miles on the highway or backroads, to build up slightly for the last couple miles from the off ramp to my house.
It's a waste of gas if you're using hold mode anyway, and certainly not efficient. I've done it a few times it though when my battery was drained already.
1 - 1 of 17 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.