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Old 04-08-2015, 10:36 PM   #4 (permalink)
Mustang Dave
Intermediate EcoDriver
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Join Date: May 2009
Location: Northern Arizona - It's a DRY cold..
Posts: 669

Trigger - '07 Ford Mustang V6 Premium Coupe
Team Mustang
Sports Cars
90 day: 33.47 mpg (US)

Big Red (retired) - '89 Ford F-250 4wd Custom
90 day: 18.13 mpg (US)

Big Red II - '13 Ford F-150 FX4
90 day: 19.59 mpg (US)
Thanks: 162
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My last oil change in my Mustang (11-15-2014), I switched from Motorcraft 5W-30 semi-synthetic to Mobil 1 0W-30 full synthetic. It appears to have made a slight difference in cold-weather fuel economy. I made it through this past Winter without dropping below 30 MPG.

Also, I switched my truck from conventional 15W-40 to synthetic 5W-40 last Fall. It starts much more easily in the cold, and I've gotten over 20 MPG with it for the first time ever. Oil consumption has increased to about a quart/1500 miles. Not complaining - 295K miles; original engine & clutch.
Fuel economy is nice, but sometimes I just gotta put the spurs to my pony!

Originally Posted by thatguitarguy View Post
Just 'cuz you can't do it, don't mean it can't be done...
Originally Posted by elhigh View Post
The presence of traffic is the single most complicating factor of hypermiling. I know what I'm going to do, it's contending with whatever the hell all these other people are going to do that makes things hard.

Last edited by Mustang Dave; 04-08-2015 at 10:49 PM..
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