[mrxiro]

Hi, I just got the 2017 Volt last weekend and have been using it to commute to work 5 miles away while on Normal mode and recharging at work. My gas mpg listed 315 miles all week but today I looked and it went down to 311 miles. Is this normal? I've been on a full charge most of the time and my AC is on ECO mode.
Am I doing something wrong? Shouldn't my gas be held at 315/m the whole time?

 

[Steverino]

You mean the ESTIMATE changed.

You have not used the gas engine at all?

 

[AZ EV Driver]

OK it isn't "mpg" it is a projection of "miles" that could be driven based on your recent past driving habits. Both EV mile and Gas mile projections are affected by the 3 T's. Temperature, Terrain, and Technique.

VIN # B0985

 

[hellsop]

Heh. I see that much change in the gas range estimate just coming down my driveway slope. That's about a 1% change. You'll also see that much change after, for example, parking for a few hours in the basement of a parking garage where it's 20F cooler than outside.

 

[SoCalBeach]

As you drive more and get more experienced with the Volt, if you are like me, you will drive conservatively initially. Then in phase II you will find yourself driving with a cement shoe. Phase III is finding out how to drive more efficiently... in my case using L not D in town. Once you master L driving, there's no going back to D as you start to master one pedal driving with the assistance of the regen paddle. Have fun. Don't worry about mileage. Your commute is so short, you probably will find you won't visit a gas station but once a year when the car will insist on running to burn off the old fuel unless you take a long trip.

 

[obermd]

Did you park with the front of the car lower than the back of the car? I've seen up to 20 mile range estimate differences doing this. Every single GM I've owned since 1985 has done this.

 

[llninja]

As you drive more and get more experienced with the Volt, if you are like me, you will drive conservatively initially. Then in phase II you will find yourself driving with a cement shoe. Phase III is finding out how to drive more efficiently... in my case using L not D in town. Once you master L driving, there's no going back to D as you start to master one pedal driving with the assistance of the regen paddle. Have fun. Don't worry about mileage. Your commute is so short, you probably will find you won't visit a gas station but once a year when the car will insist on running to burn off the old fuel unless you take a long trip.

I'm stuck on Phase II (cement shoe). Though I disagree with you about efficiency. Maximizing momentum usually beats out maximizing regen - it's Normal D with brake pedal for me.

Did you park with the front of the car lower than the back of the car? I've seen up to 20 mile range estimate differences doing this. Every single GM I've owned since 1985 has done this.

Awesome observation. With Phase II, I also started to ignore all the extra telemetry on board and just look at battery/fuel gauge, speedometer, and the TPMS screen to make sure I don't have a flat.

Hi, I just got the 2017 Volt last weekend and have been using it to commute to work 5 miles away while on Normal mode and recharging at work. My gas mpg listed 315 miles all week but today I looked and it went down to 311 miles. Is this normal? I've been on a full charge most of the time and my AC is on ECO mode.
Am I doing something wrong? Shouldn't my gas be held at 315/m the whole time?

I thought the trip MPG was capped at 255 MPG. Or maybe that was lifetime MPG? Don't worry about it. Everything is fine, nothing is wrong with your car. And read up on the sticky in the forums about varying range of the Guessometer - or else you'll have an aneurysm when winter comes. Every week a newb gets all bent out of shape when the numbers jump around. Every winter, same thing with folks who bought their volts in the summer.

 

[linkim]

Did you park with the front of the car lower than the back of the car? I've seen up to 20 mile range estimate differences doing this. Every single GM I've owned since 1985 has done this.

I often park in SF with the front end higher than the rear. There I see a range difference of about 10 miles. Nothing to worry about.

 

[jbakerjonathan]

OK it isn't "mpg" it is a projection of "miles" that could be driven based on your recent past driving habits. Both EV mile and Gas mile projections are affected by the 3 T's. Temperature, Terrain, and Technique.

VIN # B0985

I like to say 5Ts : Temperature, Terrain, Technique, Traffic and Tire pressure.

 

[llninja]

I like to say 5Ts : Temperature, Terrain, Technique, Traffic and Tire pressure.

I call "leadfoot"!!!

 

[Head_Unit]

Did you park with the front of the car lower than the back of the car? I've seen up to 20 mile range estimate differences doing this. Every single GM I've owned since 1985 has done this.

I often park in SF with the front end higher than the rear. There I see a range difference of about 10 miles. Nothing to worry about.

The tilt of the car probably changes the level of the gas at the point in the tank where the sensor is, no surprise.

 

[obermd]

I call "leadfoot"!!!

Family disease for me. Cruise Control is the only reason I still have a license.

 

[jbakerjonathan]

I call "leadfoot"!!!

Leadfoot... a "heavily weighted" subset of Technique.

 

[linkim]

The tilt of the car probably changes the level of the gas at the point in the tank where the sensor is, no surprise.

Here are my last petrol readings. On flat ground, the OnStar app shows 4.8 gal petrol. On a slight incline the reading is 5.9 gal. So quite a difference for my Volt.

 

[jbakerjonathan]

Here are my last petrol readings. On flat ground, the OnStar app shows 4.8 gal petrol. On a slight incline the reading is 5.9 gal. So quite a difference for my Volt.

Good to know! Thanks.

Most gas stations have level areas next to their pumps, so an OnStar query while sitting at the pump should be accurate.