'16 real MPG

SCREEN SHOT #2 - The current tank (3 of 3) is averaging 73 MPG (at about 200 miles in) and it is better than either of the previous best tank of 67.9 MPG. The "other" short bars are from when the car was driven off of the production line in Japan or driven onto or off of the boat. They only total about 3 miles. (and averaged 12 MPG)

SCREEN SHOT #4 - The 86.4 is the MPG for the current trip only. 31.4 miles since I left work and drove home. I only reset the computer when I refill the gas tank.

 

I noticed improvement in the gen2, but I bet most of the break in is the driver adjusting to a new car and controls. The only definite thing that requires a break in is the tires. Their rolling resistance drops with wear.

 

In my gen 3 i have the ct200 rims and I average in the winter 34-38mpg but I also only drive a mile each way to work. The summer is usually around 36-42

 

A PiP would have been great for your driving pattern.

 

I'm finding these mpg figures too much to be believed. How about computing the mpg the old fashioned way instead of trusting the gages?

 

How about both?

 

Looks like a 700 mile tank is coming up.

 

Even with the old fashioned way you need to trust gages.

You need to assume both the pump and the odometer is accurate.

Thy used to have "measured mile" markings along the highway, but I have not seen one of those for years. Is there an easy way to confirm the odometer accuracy with a GPS?

 

My Garmin Nuvi records distance to 1/10th of a mile, the same as the tripmeter. Reset one of the trip meters and Garmin and then drive enough miles to meet your accuracy goal:

	miles	precision
1	10	1%
2	50	0.2%
3	100	0.1%
4	200	0.05%

Make sure the tire pressure is correct.

GOOD LUCK!
Bob Wilson

 

There are legal ramifications if the pump and odometer aren't accurate. The pumps should be labeled with date and authority of last test.

Still see the mile markers on major highways. It's easier using the GPS since you aren't juggling your view between the dash and tiny signs along the road.

 

another alternative is use Delorme Street Atlas. U set a start and finish, then insert your stops using your exact route. I have did this with Gen 3 on 198 mile trip using a non suggested route. It is right with odometer. This uses lon and latitude so its pretty accurate. I've been using Delorme for 15 year as an extra tool along with GPS

 

That's the trend. Looks like Thursday or Friday...

Prediction - This one will be 70+ on the MFD.

 

I had another fill up today: 431.7 Miles since the previous fill up, 8.288 gallons. That's just over 52 MPG, the display indicated 55.1. BOOOOO!

 

BOOOOO! Maybe it's just too cold...

 

I'm cool if that's the explanation. I don't mind 52 MPG, about 1/3 of those miles are highway miles. I am just upset that the gauge is wrong. This is my 3rd fill up and the gauge has been way off every time. I still like the car. It's my 3rd Prius and it is by far the most fun to drive.

 

6% variance. That's give or take 1% about what the Gen3's were..

 

My gage has been overoptimistic as well. MFD 64.9 and calculated 63.7 - then MFD 67.9 and calculated 63.6. Third fillup will be coming up soon. I expect to see 70+ on the MFD.
My 2008 Prius was the same way. I consistently got 3% better computer mileage than calculated. Maybe it's just the way I drive...

 

I average over 4% better mileage on the MFD for my 2014 Avalon Hybrid Limited than I get on the calculations. Just going to have to learn to accept Toyota's delta.

 

In metric with my 3rd gen, if you reset the trip meter at a fill up and it was telling you 4.5 liters per 100 km, you could pretty much take-to-the-bank that it'd calculate as 4.8, 4.9 if you were unlucky.

 

Only 2nd day with the car but already the mileage is going up as I put on a few more miles! Avg 59.4 today