2.47 rear end, timing advance, no acceleration on the uphill, slooooow acceleration from stop, time stoplights so you roll through rather than stopping, never touch the brakes, coast whenever possible, make your idle low (like 600-650rpm). If you really wanna get good mileage, the #1 thing to do would be to improve aerodynamics of the car. Front air dam, side skirts, wheel covers, boat tail, underbody panels and fairings behind the rear tires. Also removing mirrors, improving the shape of the front of the car, and removing all exterior trim would help.. I have been really tempted to try all these things.

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99 E300 Turbodiesel 100k