New Personal MPG Record - Page 2 - Fuelly Forums

Click here to see important news regarding the aCar App

Thread Tools Display Modes
Old 10-20-2007, 11:31 PM   #11
Registered Member
garyhgaryh's Avatar
Join Date: Sep 2007
Posts: 172
Country: United States
That's excellent mileage! I would love to get 30mpg on my Typhoon. What have you done to your 3.8 to get that type of mileage?

garyhgaryh is offline   Reply With Quote
Old 11-14-2007, 05:41 PM   #12
Registered Member
Join Date: Nov 2007
Posts: 228
Country: United States
I would highly recommend you read up on what under or over inflating does to your tires, your car, and the handling!

First you're reducing grip, your tire will have considerably less surface on the road!
Second your tire will wear unevenly, if you over inflate even 10% past the max psi printed on the side of the tire, the center of your treads will wear faster than the inside and outside, you will see.

Then your tire is bigger in diameter which affects your speedometer adversely, it could say you're doing 40mph when in reality you're doing 45!

All of these affect safety!
You may not be able to stop in time in a bad situation!

Perhaps you have cheap tires but if they're rated 44psi I doubt it, they are made of petrol too and my nicer tires cost $100 each so there's no way I'm sacrificing neither tire nor safety for mpg.

If you want less road grip why not try a slightly less wide tire in the first place, say you're running 205's you could try 195's, that would be a far safer option IMO. Don't forget to go up on your sidewall one number, so if they're 55's you want to go 65, this will help offset the speedometer misscalibration.

And yes, you can go one size up or down without the need for new rims, if you compensate via the sidewall height method then your speedo should only be off 2-3 mph at most legal speeds.

A FE gauge should be standard equipment in every vehicle.
8307c4 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuelly API, Remote Update hufman Fuelly Web Support and Community News 6 11-26-2017 11:28 AM
Not very precise mpg calculation larjerr Fuelly Web Support and Community News 4 08-20-2012 02:03 AM
Keeping my distance in traffic khurt General Fuel Topics 8 09-07-2008 04:23 AM
Electrical power and cars. DracoFelis Automotive News, Articles and Products 2 09-16-2006 02:31 PM
"active" aero grille slats on 06 civic concept MetroMPG General Fuel Topics 21 01-03-2006 01:02 PM

» Fuelly iOS Apps
Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 05:40 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.