2019 GT and Break-In MPG - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 11-09-2018, 10:07 AM   #1
Registered Member
 
Join Date: Jul 2014
Posts: 1
Country: United States
2019 GT and Break-In MPG

I've been on Fuelly for a while with a few different older vehicles, but this is my first new one. I'm surprised at how efficient V8 engines have become. My 88 5.0 was 20 mpg average if I drove like a granny, and I can get almost 24 with double the hp on my 19.
I use regular unleaded and drive it like a maniac half the time.

Since this is my first new car, I wonder about something a mechanic friend told me. After your car breaks in (usually about 10k miles) your mpg will drop noticeably. Is this true? The mpg I'm getting now is great and I would hate for it to start dropping.
__________________

collegekid is offline   Reply With Quote
Old 11-09-2018, 12:43 PM   #2
Registered Member
 
Join Date: Nov 2007
Posts: 1,575
Country: United States
Location: north east PA
Fuel economy gets better once the tires have a few thousand miles of wear on them.
__________________

trollbait is offline   Reply With Quote
Old 11-11-2018, 01:58 AM   #3
Registered Member
 
Join Date: Aug 2009
Posts: 2,685
Country: United Kingdom
Location: Mid Wales
I always thought the opposite, think of anything new, they all require more energy to move them due to the resistance of new parts. A brand new book is harder to open than a 1 year old one, and freshly fitted door handle needs more energy to push it down, but when things are "worn in" they require less energy. I assume its the same with cars with many thousands of moving parts.
Draigflag is offline   Reply With Quote
Reply

Tags
2019, ford, mustang

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


» Fuelly Android Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 01:31 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.