Another MPG Thread

[UTEP]

Hi All,

When I first got my 2000 Ltd I took it on a quick 500 mile drive and got 23+ MPG! I then base lined it, with complete, multiple, fluid changes, new filters all around, new plugs, radiator, coolant, B&M trans cooler etc. I just did a 750 drive and got 18 MPG! WTH!

I used cruise control ~95% of the time and rolled at ~72 mph, 2200-2400 rpm. I swear I drove ~85mph when I got the 23 mpg…

Oh yea the rear brakes were even dragging back then!

The 23 mpg was early fall in the south west, not hot but a little warm. It was 40°-60°.

I think winter blends are in…I used Chevron 88 octane….

Any clues? That's just so counter intuitive…

It is rolling much more efficient. I got it over 100mph at one stretch just to see if I could!

Fun ride otherwise…

Utep

 

[OTB]

Could be multiple variables involved from mechanical, tire pressure, terrain, winter vs. summer grade gas.

A couple pounds of tire pressure and winter grade gas could make all the difference.

 

[Robb235]

23mpg at 85mph? How are you calculating your mileage? I could see that kind of mileage going 60 or so, but have a hard time believing 85. I'm inclined to think winter blend gas is the biggest offender as far as the decline in mileage goes.