I am getting an average of 43 MPG with my 07 Prius. The current mileage of this car is now 108740. I am yet to go on highway since i bought this car 2 months ago. In the city, i rarely able go beyond 25 MPH and this is due to traffic condition. Is this 43 MPG acceptable? Thanks, sanlen
It's a good start. It's definitely possible to do better, but that average pretty safely indicates that the car is functioning properly. Fuel economy varies considerably based on trip duration, temperature, route, driving style/techniques, etc. Low speeds can be a fuel economy challenge. It's usually best to be able to roll 35-40 mph for reasonable distances.
What tanglefoot said. It takes some time to figure out all the tips and tricks to get those really big numbers. And it requires more than just driving it like a regular car. It took me a year just to learn how to maximize MPG on the Prius. And I have to work at it daily to keep it up there, otherwise it will drop back. It requires more than just driving it like a regular car. And my MPG is not the best I can get. But I am happy with what I am getting. The van I used to drive gave me 17 in town and 22 on the highway when it was running good... Ron (dorunron)
wow that's actually good mileage for all city driving. My mother never goes on the highway and she gets around 38 around town (with ac blasting most of the time)
tires, plugs, and driving habbits play the most parts. i switched to bridgstone ecopia energy aver low rolling resistance tires. the ride is softer and a lot quieter even at speeds up to 80mph. your mileage is at the point where you should have the plugs replaced. the mpgs in my prius dropped from 55.6 down to 45 in 2 months. i replaced the plugs with NGK iridium iX plugs and my fuel economy has jumped from 44.7 back to over 50 in just 73 miles. try to learn to use the pulse and glide function to the prius. learning that will improve your economy dramatically.
Is changing the plugs on a Gen II a DIY job or a shop job? My handiness level on a non-hybrid car is about a 6 out of 10.
Your tires are a bit oversized. The stock size for a Prius Touring variant is 195/55R16, so your actual fuel economy may be a bit higher than the reading. Which Dunlops do you have? Performance-oriented tires tend to reduce fuel economy, due to softer rubber compounds.
I'm just chiming in with everyone else. Nothing dramatically new to add. But I will reiterate that slow city driving can deplete the hybrid battery to the point that the engine will run to recharge it. (Don't panic, when I say "deplete" I mean within Toyota-acceptable levels, nothing damaging) I don't see this as often as you, but when I'm creeping along < 30mph my car tries to use the battery until it's very low (sometimes 2 bars) and then the engine kicks on to recharge a little. Then it runs on battery again and repeats the cycle. At those times, I see mileage at-or-below the 25mpg bar in the Consumption graph. Unlike you, I have the opportunity to get up to higher speeds and bring the average mileage back up. So in my opinion, I'm thinking 43mpg is acceptable given your situation. After all, imagine just how bad the other cars are getting when they are just sitting and idling.
That size of tires are slightly bigger than standard, but have been known to actually enhance the handling of the Gen 2 Prius and also don't have a negative impact on fuel economy. This was confirmed by a PriusChat member based in the UK. What WILL affect economy is fitting non LRR (Low Rolling Resistance) tyres. That can cost you between 5mpg and 8mpg alone. Check the tyres to ensure they're LRR rated tyres and make sure they're pumped up pretty well. Mine are at 41 front and 38 rear (I think). A great aid to hyper mile capability. iPad ? HD
Those figures are not to bad for city driving, and if you are using US gallons. If you are using imperial gallons "about 10% larger than US gallons" the figures are low. Can you give a name or type to the Dunlop tyres you are using? if they are "Blue Response" tyres they are fine, but if they are "Sport Max" or almost any other Dunlop tyre they will impact on you economy figures. One other thing to bear in mind is that with the larger tyres the MFD readout of MPG is reasonably accurate. With the OEM size of 195/55/16 the MFD is very optimistic giving higher readings than the true figures. If you are calculating your figures from fuel used and millage driven you must add between 2.5% and 3% to you millage as the larger tyres affect the distance traveled. John (Britprius)
Britprius! It was you I was talking about earlier, regarding the 205/55/R16 tyres. Long time no see - you okay? @sanlen - you've heard it from "The Expert" himself
I just joined. I got my 2004 Prius on 6-27-14, with 143291 miles on it. I was getting very good mileage with it. date, miles, gallons, MPG 6-30, 144085, 6.075, 46.85 Local driving My fuel tank is very Scotch. It only takes 8 gallons of gas. Maybe a shrunken bladder. 7-1, 144487, 8.178, 49.2 Local 7-9, 144723, 6.04, 39.07 Local 7-13, 145111, 7.182, 53.88 Long trip 7-16, 145404, 6.199, 48.35 Local 7-27,145689, 6.857, 41.56 Local I let my wife use it on the week end of 6-24 to 6-27. I now see the decline in mpg as shown in the last week. The car drives normal but never shows more than 45-46 mpg on the display (consumption) I used to get 50 - 51 mpg often. Maybe I'm just nervous about this. Can someone, who like my wife likes to accelerate about as fast as the car will go until terminal velocity approaches (10 mph over the speed limit.) damage the battery? I think the motor is OK. I know how fast she drives. We have a Saturn LW300 wagon with a very fast engine and she blew out the #1 coil. The freeze frame on our mechanics scanner said 99% throttle @ 36 mph! I was a very expensive repair too. After I got the Pruis I changed the plugs with Bosch iridium spark plugs and the engine oil. (I used Valvoline 5W 30 Synthetic.) Next in line is the tranny fluid. I'll use Toyota fluid. I love the car, amazed at 10 years old it still runs like new. Thanks for the tips.
Learn the Pulse and Glide technique and use it when you can. You can't always do it but time the traffic lights when you can. Stopping and starting are real MPG killers. Someone suggested changing your spark plugs. A good idea.
Hi All, Thank you very much for all comments. Last Sunday, it was the first time that this car run on highway. I always stayed below 60 mph and as result i get the consumption as attached. I am happy with the performance actually, however, i wonder what does the meaning of the small green (50Wh Regenerated) icons within the yellow bar? I rarely see this icons while i am in city.
Each full car symbol represents 50 Wh of electricity regenerated in the 5 min period. Your 0-5 min bar shows you regenerated 75 Wh and your 15-25 min bars show you regenerated 100 Wh in each 5 min. Yes, you do tend to see this more cruising on the motorway, or if you have a long-ish down hill gradient where you need to hold your speed with regen/braking, or lots of slow braking for traffic lights. There tends to not be the same degree of opportunity around the city.
it is actually really simple with the right tools. just make sure you torque them down properly and not overly tight. took me about 30 minutes to change out all 4 plugs and put everything back together. it was the first time i ever changed plugs on a prius as well
