Computer Reported Mileage

mkiefer83 · 04-17-2007, 02:31 PM

I just picked up my 2007 Driftwood Pearl Prius on Saturday and I'm loving it so far. In the past two days going to and from work (all surface streets and traffic), I've managed about 50MPG according to the Prius trip computer.

Is this mileage pretty accurate or should I just hook up my ScanGaugeII and monitor my mileage that way?

Admittedly, I didn't search before asking this, which I probably should have done, but thanks for the all the help in any case.

**efusco** · 04-17-2007, 02:44 PM

There are lots of good reasons for you to hook up your ScanGauge II, but the reported MPG is pretty accurate. You'll notice differences b/w what the display shows and individual tank calculations, but this is due more to errors related to what level the tank was filled to (thanks to the expandable bladder) and inaccuracies and variences in the individual fuel pumps.

People have reported up to 2% longterm differences in calculated mileage and computer reported mileage, but most find it to be less than 1% over the long term.

But do hook up the Scan Gauge if you have it...you'll learn a lot...be sure to use the "Hybrid" setting.

mkiefer83 · 04-17-2007, 03:40 PM

Sounds good... Thanks for all the info. I was wondering what kind of setting I was going to need to use because I had originally bought the ScanGauge for my Scion tC.

One thing is for sure, I'm definitely enjoying the 2x+ increase in gas mileage.

JimN · 04-17-2007, 09:28 PM

<div class='quotetop'>QUOTE(Kiefer @ Apr 17 2007, 01:31 PM) [snapback]424756[/snapback]</div>

Quote:

I just picked up my 2007 Driftwood Pearl Prius on Saturday and I'm loving it so far. In the past two days going to and from work (all surface streets and traffic), I've managed about 50MPG according to the Prius trip computer.

Is this mileage pretty accurate or should I just hook up my ScanGaugeII and monitor my mileage that way?

Admittedly, I didn't search before asking this, which I probably should have done, but thanks for the all the help in any case.
[/b]

The MFD's calculations are close enough for government work. I prefer keeping my own log.

Bill Merchant · 04-17-2007, 10:54 PM

Welcome to PriusChat, Kiefer. You're getting great MPG right off the bat. Don't be disappointed if your second tank isn't as good. You'll find lots of threads on fuel economy and many people experience a worse second tank and get either worried or discouraged. We're beginning to get into warmer weather (I hope) which is good for MPG, but each tank will fluctuate along with your driving conditions and experience.

Have fun driving!

04-17-2007, 02:44 PM	#2
efusco Troll Slayer Join Date: Nov 2003 Location: Nixa, MO Posts: 14,709 My Car: 2004 Prius Package: #9 Nominated 1 Time in 1 Post TOTM Awards: 0 Friends: 26	There are lots of good reasons for you to hook up your ScanGauge II, but the reported MPG is pretty accurate. You'll notice differences b/w what the display shows and individual tank calculations, but this is due more to errors related to what level the tank was filled to (thanks to the expandable bladder) and inaccuracies and variences in the individual fuel pumps. People have reported up to 2% longterm differences in calculated mileage and computer reported mileage, but most find it to be less than 1% over the long term. But do hook up the Scan Gauge if you have it...you'll learn a lot...be sure to use the "Hybrid" setting. __________________ Evan E. Fusco, MD Seaside 04BC9/OEM EVb/NAV & auto-BT/XM Radio, CAN-View, Shark Fin, BT Stiff. Plate, Skid Plate & Strut Support

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04-17-2007, 02:31 PM	#1
mkiefer83 Member Join Date: Apr 2007 Location: Canton, MI Posts: 40 My Car: 2008 Prius Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	I just picked up my 2007 Driftwood Pearl Prius on Saturday and I'm loving it so far. In the past two days going to and from work (all surface streets and traffic), I've managed about 50MPG according to the Prius trip computer. Is this mileage pretty accurate or should I just hook up my ScanGaugeII and monitor my mileage that way? Admittedly, I didn't search before asking this, which I probably should have done, but thanks for the all the help in any case.

04-17-2007, 03:40 PM	#3
mkiefer83 Member Join Date: Apr 2007 Location: Canton, MI Posts: 40 My Car: 2008 Prius Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Sounds good... Thanks for all the info. I was wondering what kind of setting I was going to need to use because I had originally bought the ScanGauge for my Scion tC. One thing is for sure, I'm definitely enjoying the 2x+ increase in gas mileage.

04-17-2007, 10:54 PM	#5
Bill Merchant absit invidia Join Date: May 2005 Location: USA \| Oregon \| Portland area \| 97004 \| Posts: 3,996 My Car: 2007 Prius Package: #5 Nominated 6 Times in 1 Post TOTM Awards: 1 Friends: 53	Welcome to PriusChat, Kiefer. You're getting great MPG right off the bat. Don't be disappointed if your second tank isn't as good. You'll find lots of threads on fuel economy and many people experience a worse second tank and get either worried or discouraged. We're beginning to get into warmer weather (I hope) which is good for MPG, but each tank will fluctuate along with your driving conditions and experience. Have fun driving!