Go Back   EcoModder Forum > EcoModding > Hypermiling / EcoDriver's Ed
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-31-2019, 02:02 PM   #11 (permalink)
Master EcoModder
 
Join Date: Feb 2014
Location: Missoula, MT
Posts: 1,829

Dark Egg - '12 VW Touareg TDI Sport AWD
90 day: 25.81 mpg (US)
Thanks: 130
Thanked 672 Times in 458 Posts
If it's reading 60-80mpg it is either wrong or more likely you are going slightly downhill or losing speed. I might buy 40-50 mpg at 55 mph but not 60-80.

__________________

  Reply With Quote
The Following User Says Thank You to Hersbird For This Useful Post:
Galvatron1 (11-03-2019)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-01-2019, 06:44 AM   #12 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: Vermont
Posts: 3,580

Gaptooth (retired) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 23.93 mpg (US)

K-sight - '00 Honda K-sight
90 day: 40.97 mpg (US)
Thanks: 1,345
Thanked 1,485 Times in 940 Posts
Quote:
Originally Posted by Galvatron1 View Post
I think I read a tip about not running your heat until the car is at operating temperature , Because it's more efficient.

Although some say it's not necessary to warm up your car when you're first getting started. What are your thoughts on that? From an efficiency standpoint, is it better to warm up your car for a minute or two? Or until it drops under a certain RPM's?
I think general consensus is to warm the car up by driving it. It's going to warm up over time regardless, and if you're driving it's doing useful work while getting warm.

You might look into a block or oil pan heater to warm it up on cheap grid power.
  Reply With Quote
The Following User Says Thank You to Ecky For This Useful Post:
Galvatron1 (11-01-2019)
Old 11-01-2019, 04:06 PM   #13 (permalink)
Environmentally Conscious
 
Galvatron1's Avatar
 
Join Date: Oct 2019
Location: NYC
Posts: 11
Thanks: 19
Thanked 1 Time in 1 Post
Quote:
Originally Posted by Hersbird View Post
If it's reading 60-80mpg it is either wrong or more likely you are going slightly downhill or losing speed. I might buy 40-50 mpg at 55 mph but not 60-80.
This is my personal best, but city driving drops to a paltry sub 20s. It was done a month ago at 35 psi. I think the cooler weather has dropped my mpg. I tried going from 35 to 40 psi 2 days ago, but haven't seen significant gains. I'm wondering if I should move up to 45 psi, or go all in at 50 psi.

I stand corrected, max sidewall tire pressure is 51 psi, not 55 psi.
Attached Thumbnails
Click image for larger version

Name:	472328E9-9F6C-44B0-BBAA-8A2AB1C3FFB7.jpg
Views:	5
Size:	56.1 KB
ID:	27125  
  Reply With Quote
Old 11-01-2019, 04:10 PM   #14 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: Vermont
Posts: 3,580

Gaptooth (retired) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 23.93 mpg (US)

K-sight - '00 Honda K-sight
90 day: 40.97 mpg (US)
Thanks: 1,345
Thanked 1,485 Times in 940 Posts
Go ahead and try 50! You're not likely to hurt anything, and if road noise or ride comfort are too low, you can always drop pressure back down.

Cold weather affects my car tremendously too.

Do you intend to start a fuel log?
  Reply With Quote
The Following User Says Thank You to Ecky For This Useful Post:
Galvatron1 (11-01-2019)
Old 11-01-2019, 04:22 PM   #15 (permalink)
Environmentally Conscious
 
Galvatron1's Avatar
 
Join Date: Oct 2019
Location: NYC
Posts: 11
Thanks: 19
Thanked 1 Time in 1 Post
Quote:
Originally Posted by Ecky View Post
Go ahead and try 50! You're not likely to hurt anything, and if road noise or ride comfort are too low, you can always drop pressure back down.

Cold weather affects my car tremendously too.

Do you intend to start a fuel log?
Alright, I'll go fill up to 50 psi right now!

Honestly, I'm not organized enough to start a fuel log, I'm too scatter brained, lol. But I did take this picture of the avg mpg, & will happily keep you updated if it improves with boosted psi. Currently it's 27 mpg, & has on occasion dropped to 22 mpg when I do a lot of city driving.

I'm curious as to why the avg consumer doesn't care about mpg, when choosing a vehicle or even improving fuel efficiency in their current vehicles.

I would engine swap to the latest Camry hybrid engine, if a new engine was necessary, if it was cost effective & it were simple as plug and play, no custom mounting brackets. But I'm guessing since I have a 2014, it's not compatible with the bigger bodied 2018's & above.
Attached Thumbnails
Click image for larger version

Name:	IMG_4789.jpg
Views:	5
Size:	41.7 KB
ID:	27126  

Last edited by Galvatron1; 11-01-2019 at 04:38 PM..
  Reply With Quote
The Following User Says Thank You to Galvatron1 For This Useful Post:
Ecky (11-01-2019)
Old 11-01-2019, 11:03 PM   #16 (permalink)
Environmentally Conscious
 
Galvatron1's Avatar
 
Join Date: Oct 2019
Location: NYC
Posts: 11
Thanks: 19
Thanked 1 Time in 1 Post
Just went from 40 psi to 50 PSI today & still can't avg 40 MPG on the highway at 50-65 MPH at night. It was 43 F @ 9:30pm

Does temperature really decrease mpg that much? I was getting over 40 MPG on the highway just a month ago, at 35 PSI!! The temperature was 30-40 F higher & it was day time.

I won't block the grill holes, b/c closely monitoring the engine for overheating isn't something I want to worry about.

I'll either have to deal with it, or find some other simple things to boost mpg.

That brief 1 minute 60 mpg spike, was me coasting off the highway exit to local roads. The data certainly is interesting.

Briefly around noon, it was only a high of 53 F, but I was able to avg 40 mpg on the highway @ 50 psi, thanks to the car heating effect of the sun at high noon. I even had 3 consecutive minute peaks at 60 mpg & a few other good minutes with fuel economy above 54 mpg around noon.
Attached Thumbnails
Click image for larger version

Name:	IMG_4794.jpg
Views:	6
Size:	42.3 KB
ID:	27127  

Last edited by Galvatron1; 11-02-2019 at 07:29 AM..
  Reply With Quote
Old 11-02-2019, 10:23 AM   #17 (permalink)
Master EcoModder
 
Ecky's Avatar
 
Join Date: Dec 2011
Location: Vermont
Posts: 3,580

Gaptooth (retired) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 23.93 mpg (US)

K-sight - '00 Honda K-sight
90 day: 40.97 mpg (US)
Thanks: 1,345
Thanked 1,485 Times in 940 Posts
Quote:
Originally Posted by Galvatron1 View Post
Just went from 40 psi to 50 PSI today & still can't avg 40 MPG on the highway at 50-65 MPH at night. It was 43 F @ 9:30pm

Does temperature really decrease mpg that much? I was getting over 40 MPG on the highway just a month ago, at 35 PSI!! The temperature was 30-40 F higher & it was day time.

I won't block the grill holes, b/c closely monitoring the engine for overheating isn't something I want to worry about.

I'll either have to deal with it, or find some other simple things to boost mpg.

That brief 1 minute 60 mpg spike, was me coasting off the highway exit to local roads. The data certainly is interesting.

Briefly around noon, it was only a high of 53 F, but I was able to avg 40 mpg on the highway @ 50 psi, thanks to the car heating effect of the sun at high noon. I even had 3 consecutive minute peaks at 60 mpg & a few other good minutes with fuel economy above 54 mpg around noon.

Before I changed my engine, I could get 100+ mpg average (over 100+ miles) cruising at 50mph on a warm day, and had a best tank in the high 80's. During the dead of winter I struggled to get low to mid 50's, but it can to zero or below here. So yes, temperature can have a huge impact, as can stop and go travel.

I run a 75% grille block through summer. Once it's below freezing outside I block it 100%. When I first blocked it I kept an eye on things until I was confident it wasn't going to overheat.

In most vehicles, when you let off the pedal, the vehicle goes into what is called "DFCO" or deceleration fuel cut-off, where it burns zero fuel and your fuel economy is infinite miles per gallon - for example, 1 mile of coasting with zero gallons used is 1 mile divided by 0 gallons. Chances are good the Toyota display doesn't show this and just gives what is a large number for the car.

I had a rental Corolla a while back, I believe it was a 2015 with a CVT, and according to the computer I was able to get mid-50's MPG cruising at ~55mph once the car was warmed up, even with it being in the 40's outside.
  Reply With Quote
The Following User Says Thank You to Ecky For This Useful Post:
Galvatron1 (11-04-2019)
Old 11-03-2019, 09:25 AM   #18 (permalink)
Environmentally Conscious
 
Galvatron1's Avatar
 
Join Date: Oct 2019
Location: NYC
Posts: 11
Thanks: 19
Thanked 1 Time in 1 Post
What a difference temperature makes! 52F, 50 PSI, AVG 50 MPG for 15 minutes on the highway!! Hybrid efficiency in a non-hybrid vehicle makes me smile, I love it!!

This may be my best new 15 minute avg ever, woot woot!!

Sadly, when I got to the city driving, back to paltry sub 20 MPG.

Thanks ecky, for advising me to go up to 50 PSI, was really nervous about trying that.
Attached Thumbnails
Click image for larger version

Name:	IMG_4799.jpg
Views:	2
Size:	56.0 KB
ID:	27128  

Last edited by Galvatron1; 11-03-2019 at 12:41 PM..
  Reply With Quote
Old 11-04-2019, 03:52 PM   #19 (permalink)
Environmentally Conscious
 
Galvatron1's Avatar
 
Join Date: Oct 2019
Location: NYC
Posts: 11
Thanks: 19
Thanked 1 Time in 1 Post
Does cheap fuel rob MPG?

Maybe my imagination, but I think the cheap fuel I bought yesterday from Fuel 4 gas station in Jersey City robbed me of power & MPG, compared to filling up at Shell. Same $2.39/gallon, but down to 6 miles left, & the Shell I pay the same price was far away.

Is it true running your tank all the way to empty can bring up sediment deposits into your engine & damage it? What's the lowest you feel comfortable running your gas tank to?

Last edited by Galvatron1; 11-04-2019 at 09:48 PM..
  Reply With Quote
Old 11-05-2019, 01:12 PM   #20 (permalink)
EcoModding Apprentice
 
Join Date: Jul 2015
Location: Louisiana
Posts: 126
Thanks: 25
Thanked 38 Times in 30 Posts
I don't like to run mine to "E" and never do. I usually refill no later than about the 1/8 mark.

It's not to avoid sediment in the tank, because the fuel pickup is generally at the bottom anyway.

It's just based on the principle that I avoid taking chances with running out of fuel, especially when there's no benefit to taking the chance anyway.

__________________
  Reply With Quote
The Following User Says Thank You to MeteorGray For This Useful Post:
Galvatron1 (11-05-2019)
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com