Are you getting better/worse than the official 53/46 mpg in your Prius c? Track your fuel economy and share with others your experience with the Prius c's MPG. Fri, 13 Mar 2026 13:58:04 +0000 Fri, 13 Mar 2026 13:58:04 +0000 PriusChat https://priuschat.com/forum/prius-c-fuel-economy.126/ Wed, 07 Jan 2026 01:08:45 +0000 https://priuschat.com/threads/huge-mpg-loss.258460/ https://priuschat.com/threads/huge-mpg-loss.258460/ invalid@example.com (CMJAnew) CMJAnew I have eliminated brake drag and wheel bearing issues. The car has new spark plugs and air filter.
There is a noice that sounds similar to ‘traction control/stability control’ activation coming from the passenger front only when the ice engine is...

Huge MPG Loss]]> 23 Thu, 19 Jun 2025 21:22:35 +0000 https://priuschat.com/threads/2013-toyota-aqua-egr-nightmare-%E2%80%94-fixed-the-code-now-horrible-fuel-economy-advice-needed.255809/ https://priuschat.com/threads/2013-toyota-aqua-egr-nightmare-%E2%80%94-fixed-the-code-now-horrible-fuel-economy-advice-needed.255809/ invalid@example.com (some_what1) some_what1 P0401 fault code (EGR insufficient flow). My local mechanic cleaned the EGR, and the check engine light went away — but it came back after about 30-40 km. He cleaned it again, same story.

Took it to a few other mechanics, and they all recommended replacing the EGR. Reluctantly, I bought a new one, got it installed… and a few days later, the same code came back. The mechanic replaced it under warranty and then sent me...

2013 Toyota Aqua EGR Nightmare — Fixed the Code, Now Horrible Fuel Economy. Advice Needed!]]> Thu, 20 Mar 2025 00:40:12 +0000 https://priuschat.com/threads/mileage-brags-personal-bests-or-unusual-highs.201047/ https://priuschat.com/threads/mileage-brags-personal-bests-or-unusual-highs.201047/ invalid@example.com (michael.sfo) michael.sfo
My SF-San Jose morning commute was longer than usual today thanks to especially bad traffic on the freeway, and dropping off a carpool passenger a couple of miles away from the freeway in congested Mountain View, CA. But the Prius c likes this kind of traffic. My new personal record this morning, along with a picture of Boris Badenov before we started: View attachment 160554
View attachment 160555]]> 95 Wed, 19 Feb 2025 03:48:33 +0000 https://priuschat.com/threads/when-you-fill-up-gas-tank.191654/ https://priuschat.com/threads/when-you-fill-up-gas-tank.191654/ invalid@example.com (Justin Hargrove) Justin Hargrove 34 Thu, 07 Nov 2024 13:25:45 +0000 https://priuschat.com/threads/175-65-15-to-a-185-65-15.171727/ https://priuschat.com/threads/175-65-15-to-a-185-65-15.171727/ invalid@example.com (lewbarb) lewbarb 22 Fri, 31 May 2024 01:52:01 +0000 https://priuschat.com/threads/strange-fuel-consumption-indication.249008/ https://priuschat.com/threads/strange-fuel-consumption-indication.249008/ invalid@example.com (spy1309) spy1309 I got an OBD2 bluetooth reader and Dr Prius app to keep an eye on the battery, on my phone also have Torque Pro app used on my previous car so I did a Prius C profile for it now the strange thing is that the app shows me an overall fuel consumption of 10.9l/100km almost 11l/100km my Ford 3.5L...

Strange fuel consumption indication]]> 2 Fri, 08 Dec 2023 18:33:22 +0000 https://priuschat.com/threads/best-way-to-increase-mpg-not-including-driving-habits.197458/ https://priuschat.com/threads/best-way-to-increase-mpg-not-including-driving-habits.197458/ invalid@example.com (HasuPK) HasuPK 57 Fri, 07 Jul 2023 21:45:51 +0000 https://priuschat.com/threads/i-hear-you-like-fuel-data.242027/ https://priuschat.com/threads/i-hear-you-like-fuel-data.242027/ invalid@example.com (PriusCOwner001) PriusCOwner001 The final column is an estimate of the miles per gallon I get from use. It is a little skewed if I didn't fill up completely. There are four entries where MPG looks crazy as a result. The quick method of having excel calculate MPG results in 52.619.
The other method, should be more accurate, is the mileage I have driven (still not 100% accurate because I do not have the mileage I bought the car at on hand)...

I hear you like fuel data]]> 1 Mon, 29 May 2023 01:10:22 +0000 https://priuschat.com/threads/what-is-your-real-world-fuel-economy.119839/ https://priuschat.com/threads/what-is-your-real-world-fuel-economy.119839/ invalid@example.com (tcidrp) tcidrp In the past 30 days I have driven almost 5,100 miles. I have driven from NC to Baton Rouge, LA and spent a week there. Then back to NC and then on to New York City. I spent two weeks in NYC before heading to Newmarket, Ontario Canada via Buffalo, NY. After a week in Canada I drove back to NC.

During the past four weeks the temperatures have ranged from lows in the 20's to highs in the mid 70's. Mostly in the...

What is your Real World Fuel Economy]]> 117 Sun, 14 May 2023 16:05:01 +0000 https://priuschat.com/threads/2012-prius-c-3-8l-100km.240702/ https://priuschat.com/threads/2012-prius-c-3-8l-100km.240702/ invalid@example.com (Species5618w) Species5618w ]]> 2 Tue, 31 Jan 2023 12:47:37 +0000 https://priuschat.com/threads/brake-and-gas-charging.114866/ https://priuschat.com/threads/brake-and-gas-charging.114866/ invalid@example.com (chicagoaficionado) chicagoaficionado Shoot me if I overlooked previously posted information, but in this video (couple minutes in)

This dude charges the battery in drive by pressing the brake and gas. Why would you ever do this?!

Maybe it was so for their competition so the car could be charged evenly for all competitors, but would this have any point in warming up the car? Can it even be done in the C?

Thanks in advance.]]> 25 Wed, 21 Sep 2022 20:55:14 +0000 https://priuschat.com/threads/gas-mileage-dropped-to-28-29-mpgs-after-new-catalytic-converter-and-shield-installed-why.235191/ https://priuschat.com/threads/gas-mileage-dropped-to-28-29-mpgs-after-new-catalytic-converter-and-shield-installed-why.235191/ invalid@example.com (Owner of "Little Green") Owner of "Little Green" 5 Tue, 13 Sep 2022 01:37:00 +0000 https://priuschat.com/threads/new-tires-5-to-6-less-mpgs.235723/ https://priuschat.com/threads/new-tires-5-to-6-less-mpgs.235723/ invalid@example.com (Lukey51) Lukey51
Is that expected for new tires or was I wrong to have not...

New Tires = 5 to 6 Less MPGs]]> 17 Fri, 02 Apr 2021 21:21:42 +0000 https://priuschat.com/threads/62mpg-20-miles-mostly-freeway.224032/ https://priuschat.com/threads/62mpg-20-miles-mostly-freeway.224032/ invalid@example.com (dwillem) dwillem 10 Tue, 30 Mar 2021 15:04:27 +0000 https://priuschat.com/threads/eco-mode-isnt-working-prius-c-2015.224262/ https://priuschat.com/threads/eco-mode-isnt-working-prius-c-2015.224262/ invalid@example.com (lenore) lenore When I push the Eco mode button on my Prius C (2015) I get a message that says Eco mode is not available , excessive speed. This is when I am driving anytime--from 20 miles an hour in my town to 65 miles on the highway. What's up?Thanks so much-would like to avoid a trip to th dealer.]]> 3 Fri, 08 Jan 2021 09:27:43 +0000 https://priuschat.com/threads/moon-discs.187632/ https://priuschat.com/threads/moon-discs.187632/ invalid@example.com (novaz) novaz 13 Mon, 16 Nov 2020 04:19:07 +0000 https://priuschat.com/threads/beta-testers-sought-for-new-tech-for-prius-c.187971/ https://priuschat.com/threads/beta-testers-sought-for-new-tech-for-prius-c.187971/ invalid@example.com (Pedal Logic) Pedal Logic
We've been testing a new mpg-improving technology with Prius Gen3 owners on Priuschat since December of last year and now want to test on the Prius c.

Our technology is called SmartPedal and improves mileage by electronically correcting the pedal signal. You can read about the details here ((5) beta testers sought for new technology | PriusChat).

In terms of performance, SmartPedal...

beta testers sought for new tech for Prius c]]> 37 Sat, 10 Oct 2020 14:49:24 +0000 https://priuschat.com/threads/how-much-fuel-prius-c-uses-if-ac-is-running-overnight-8-hours.196900/ https://priuschat.com/threads/how-much-fuel-prius-c-uses-if-ac-is-running-overnight-8-hours.196900/ invalid@example.com (Aqua2014owner) Aqua2014owner 8 Mon, 24 Aug 2020 19:58:56 +0000 https://priuschat.com/threads/anyone-with-mastercraft-srt-cooper-tires-whats-your-experience.219098/ https://priuschat.com/threads/anyone-with-mastercraft-srt-cooper-tires-whats-your-experience.219098/ invalid@example.com (davide) davide
But sidewall cracks have developed (always parked outside) so I think it's wise to replace. I wanted the Bridgestone Ecopia EP422 Plus tires, but my local discount tire dealer (Belle Tire) doesn't carry them. They suggested the Mastercraft SRT Touring (by Cooper Tires). I'm eager for any...

Anyone with Mastercraft SRT (Cooper) tires? What's your experience?]]> Mon, 20 Jul 2020 04:19:24 +0000 https://priuschat.com/threads/long-time-coming-mpg-is-up.214667/ https://priuschat.com/threads/long-time-coming-mpg-is-up.214667/ invalid@example.com (dig4dirt) dig4dirt
Drive home from work and still daylight out at 7pm, thanks to the "spring ahead" this weekend.
3.2 miles. and got 73.6mpg in my 2014 Prius "c"

That is why I still love my Moon Glow!

I started out with a white 2012 "c"
I waited in line for that puppy, but then got the "blizzard pearl" equivalent upgrade
at the same time as the OG Blizzard Pearl 2015 liftback to match.

Did a nice wash this weekend and after 5.5 years of love,...

Long time coming, MPG is UP!]]> 6