I have a 3.9 L disco 1 with 174K on her. How do I improve my MPG to maybe 15-20 instead of the average 12-15? Should I replace my fuel filter? Or should I change out my transmission and gear box so its geared better??
Besides the regular spark plugs/ and wires. what else do I need to do?
And I wouldn't be caught dead in a gay looking prius!!!!!!!!!!! they scream "iiiiiiiiiiiiiiiiiiiiiiiiiiii'mmmmmmmmmmmmmmm gggggggggggggaaaaaaaaaaaaaaaaaaayyyyyyyyyyyyy" as they drive by. LOL
atancreti: if your engine has 174 thousand miles on it, 12-15 mpg isn't bad at all. If you do the obvious things you might improve things a bit but not much:
•keep tires hard
•use the thinnest oil the engine will tolerate
•employ some hyper-miling tricks
We use our Disco for fun and trailer towing only - drive an older Volvo wagon that gets 22mpg in town and 30mpg on the highway. For real economy, get an econobox for a daily driver (My old beetle could top 50 mpg on the highway - I paid $40 for it in '66, sold it for $100 a few years later.)
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