Re: 2000 windstar SEL fuel consumption
Stupid question, but is the van running in overdrive on the interstate?
The 3.8L was a good engine and Ford's aren't known for best in class fuel economy. My taurus with the 3.0L engine (earlier windstars had this engine too but weighed 300lbs less) and it averages 17mpg all in town and 28hwy. As stated above a V8 durango gets similar fuel economy numbers. All city driving my big 5.9L V8 AWD consumes 13mpg around town and up to 19mpg highway! The biggest fuel economy factor is weight. A friend of mine has a 2003 Caravan and he removed all the seats and gained 2mpg in city driving alone. Of course if you need the seats , removing them can't help you.
However, a tune up will help immensely, especially if it hasn't been done in 30,000miles. Don't believe Ford when they say you can go 100K between tune ups.
'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!