POLL : what MPG are you getting in your gen 2

I did that last winter for the first time and I think it helped (my winter MPG minimum was 52, vs 46 the previous year).

I used pipe insulation on the lower grille until mid May (i.e. until the temp hit 70 during the day). Very easy to put on and remove.

Black electrical tape (my Prius is black) worked fine for the top grille. I only took that off at the end of June.

I'm going to put the top back on next week if the temps stay as they have been (i.e. mostly cool). The bottom grille block will come back in October.

My dealer seemed to think the car looked great at my recent 60k servicing, so I don't think this regime is unreasonably dangerous to the engine - especially since the car is mainly used for commuting.

 

Got in rush hour traffic coming home and did a stint of 8-13 mph that gave me a hefty boost for a trip average of 66mpg but before I got gas the display said upper 50s for the prior tankful.

I was thinking we might get it above 60 mpg on that tank until someone pulled out in front of me on a very big hill causing me to go from 45 to 10 back to 45 all on an uphill grade that would normally hurt fuel efficiency. AVG went from 58.x to 57.x in a few seconds after days of nursing the MPG higher.

If I drive mostly short trips (like when I worked 2 miles from home) I got upper 30s in the winter to upper 40s/lower 50s in the summer depending on how many longer trips I mixed into the short commute. I'd be happier to work 2 miles from home and get 30 MPG on my Prius than to work further away and get 60 MPG.

 

Using less gas is the point. Higher mpg is good but traveling less with good mpg is better.

 

Since getting my new Michelin Primacies (which have been kept at 60 (!) PSI), I have been getting 59.75 MPG calculated from tanks (18.04 gal/1078 mi)

Before that, my smoothed average (based on 8 prior tank fill calculations) was 66.1 MPG - a 10% mileage hit.

Mind you, there was a lot of highway miles with AC driven on 2 of those tanks, so I suppose that accounts for most of the reduction.

Calculated another way - the MFD display of the one tank where I just did my normal commute (not a lot of highway) was 67.1. Subtracting the calculated 3.3% overestimate of the MFD (I did this over a year and got 58 real vs 60 MFD), I get 64.9 mpg (i.e. a 3% hit)

I guess that's about par.

 

What tires (model size) were you running previously dabize?

 

The ones I replaced were the original Goodyear Integrity tires.
They were the regular (15") size.

The fronts were nearly bald (I had 60k miles (95k Km) on them), and that may have been giving me a MPG or so as well due to more RPM than the odometer was set for. The rears were still legal, but done. The Integrities are only warranted for 36k miles anyway.

Overall it really looks like a minor hit when I factor in everything - maybe the ridiculously high tire pressure the guys at the dealership put in has mitigated what would have been a larger hit otherwise, too.

 

Thanks for the info. It looks like you got a really good run out of those Integrities.

 

44.6 so far, Las Vegas summer.

SAMSUNG-SGH-I897 ?

 

I have an 88 mile round trip every day through some of northern va's finest traffic (I95) I am able to use the HOV for about 20 miles of that each way, the rest is slow rolling stop and go most of the time.

Averaging 52-54 mpg, I don't do anything special, very impressed mpg with the car (had civic hybrid prior), purchased from my father with 50k on it, coming up on 75k shortly.

Drive it to stay with the flow of traffic, could be 5 mph, or 80mph, when the HOV is clear I generally stay around 72mph

 

Sheesh . . . . between all the poll takers - I'm all by my lonesome in the 65-70mpg range - can I get a little company please?



Most of my screen shots are higher (meaning the 72-75mpg hypermile'ing) because those are the rare ones. My high mpg's are the result of taking surface streets to work in stead of freeways. It takes me an extra 15 minutes - but what the heck, I got noting better to do at 4am.

 

hill, that's just not right. ^

 

Newer tank we are on now is at 61.x MPG after about 300 miles. Haven't had to use the AC as much this tank so I guess the AC was worth 3% reduction in MPG.

 

In mixed driving, with highs in the 100s 'F barely 2.2 gallons per 100 miles. Now with highs in the 80s it's 1.9 gal/100 miles, the best it's ever been.

 

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I average about 41 in my 07 Prius. Short trips and a difficult weather situation are the primary culprits. We improve dramatically on longer trips and in the summer. Can't imagine getting much over 55 though. Seems like a pipe dream.

 

You just need to take a long highway trip at 60mph and you'll have your 50+mpg.

 

So far every tank is getting better for me. If it keeps up much longer that way, I'll not be using any gas at all within a month or two!

But in all seriousness, my first tank was 46.3, my second was 56.5, and my third was 63.3 yesterday delivering pizza. I can't complain about that at all! It remains to be seen whether I can maintain that or if it was a quirk of the fuel bladder, but I'm still happy since it's over 50 either way. Those were the calculated MPG, not MFD MPG. I'm still needing to add a ScanGauge to the mix too.

 

In the long run just use the MFD numbers. They are more than accurate enough.

 

If you keep that trend up much longer you're gonna have to start draining gas out instead of fueling up.

 

I'm happy to report that I switched back to my 15" wheels with Yokohama dB Super E-Spec tires and I am now getting 55-57mpg with a little extra effort. I can get 60+mpg when I don't have to drive to work which entails climbing from 50ft. above sea level to 1200ft above sea level. For 3 days I didn't go to work and my mpg was at 64mpg over 100+ miles of driving.

My commute elevation map. y axis is x10 (100ft. = 1000ft.)