Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-28-2022, 01:02 PM   #1 (permalink)
airfidget
 
Join Date: Oct 2016
Location: Illinois
Posts: 12
Thanks: 0
Thanked 2 Times in 2 Posts
E85 Prius V

All,

I'm inspired to get back on here and try another post.

I have purchased a wrecked, salvaged, and reconditioned 2013 Prius V that I am just having fun with, doing experiments, hypermiling, doing small modifications. 0 modifications to engine currently. Only weight reduction and drag reduction.

The past month I've been working with ethanol. Here are my results so far.

All tests performed at the same gas station, same pump, and run for 100 miles minimum to test if the MIL light came on. All mixes of E85 and regular are based off of the sticker concentration of ethanol, I know it can vary widely. All tests are done in town driving, no big hills, back and forth to work for my 6 mile commute. The Prius V is unmodified for ethanol. But it's all an experiment, and I'll never know if I don't try.

E10 regular 87, no MIL light, 49 mpg
E10 premium 91, no MIL light, 51 mpg
"E25" 2.07 gallons regular, 0.69 gallons E85, no MIL light, 48 mpg
"E50" 1.29 gallons regular, 1.46 gallons E85, no MIL light, 45 MPG
"E75" 0.69 gallons regular, 2.07 gallons E85, no MIL light, 45 MPG
E85, MIL light within 10 miles, 44 MPG

I am surprised at the noteably low difference between E10 and E85.

Thoughts?

__________________
[url]=http://ecomodder.com/forum/em-fuel-log.php?vehicleid=9805
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-28-2022, 01:07 PM   #2 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
As an additional data point you might try clear premium (E00).
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
Old 09-28-2022, 01:19 PM   #3 (permalink)
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 12,394

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.68 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
Thanks: 4,189
Thanked 4,380 Times in 3,354 Posts
Very few variables are controlled and nothing is repeated, so absolutely any result would be unsurprising to me.

If a pattern appeared from repeated testing despite the lack of variable controls, we might have something to say about the results.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 09-28-2022, 03:29 PM   #4 (permalink)
home of the odd vehicles
 
rmay635703's Avatar
 
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,874

Silver - '10 Chevy Cobalt XFE
Thanks: 495
Thanked 863 Times in 650 Posts
Many cars get “better than expected “ fuel economy on ethanol blends, especially in the e20-e50 area.

Be forewarned Temperatures have a larger effect on MPGs when using high percentages of ethanol
  Reply With Quote
Old 09-28-2022, 05:46 PM   #5 (permalink)
airfidget
 
Join Date: Oct 2016
Location: Illinois
Posts: 12
Thanks: 0
Thanked 2 Times in 2 Posts
E00

Quote:
Originally Posted by freebeard View Post
As an additional data point you might try clear premium (E00).
Freebeard, thank you. I could add a data point if I can find it near me.
__________________
[url]=http://ecomodder.com/forum/em-fuel-log.php?vehicleid=9805
  Reply With Quote
The Following User Says Thank You to airfidget For This Useful Post:
freebeard (09-28-2022)
Old 09-28-2022, 05:53 PM   #6 (permalink)
airfidget
 
Join Date: Oct 2016
Location: Illinois
Posts: 12
Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by rmay635703 View Post
Many cars get “better than expected “ fuel economy on ethanol blends, especially in the e20-e50 area.

Be forewarned Temperatures have a larger effect on MPGs when using high percentages of ethanol
I am worried about that. I waited for the heat of summer to drop, September was very mild in Illinois. But we just switched to fall weather, so I want to repeat a few of the data points a couple of times at lower temperatures and just keep track on here.
__________________
[url]=http://ecomodder.com/forum/em-fuel-log.php?vehicleid=9805
  Reply With Quote
Old 09-28-2022, 06:20 PM   #7 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
Quote:
I could add a data point if I can find it near me
There are people ready to help: www.buyrealgas.com/Illinois.html
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
ECO-AKJ (09-29-2022)
Old 09-30-2022, 05:55 PM   #8 (permalink)
airfidget
 
Join Date: Oct 2016
Location: Illinois
Posts: 12
Thanks: 0
Thanked 2 Times in 2 Posts
E00

Quote:
Originally Posted by airfidget View Post
I am worried about that. I waited for the heat of summer to drop, September was very mild in Illinois. But we just switched to fall weather, so I want to repeat a few of the data points a couple of times at lower temperatures and just keep track on here.
Alas, up north. Illinois is tall and kind of skinny. It would take me 4 hours to get to Bloomington to fill up.

Thank you, though. I'm going to proceed as planned.
__________________
[url]=http://ecomodder.com/forum/em-fuel-log.php?vehicleid=9805
  Reply With Quote
Old 10-01-2022, 01:47 AM   #9 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,548
Thanks: 0
Thanked 1,622 Times in 1,447 Posts
Quote:
Originally Posted by airfidget View Post
I am surprised at the noteably low difference between E10 and E85.
Quite predictable for a hybrid, as it's optimized to take more benefit of electric drive in town. BTW I guess you already know about the flexfuel versions of the Corolla and Corolla Cross available in Brazil, so maybe a remap shouldn't be out of question.

  Reply With Quote
Reply  Post New Thread


Tags
e85, prius, prius v

Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com