Ok guys. I have adjusted the valves, replaced the fuel filters, replaced the air filter, made sure I have the proper amount of air in my tires...in short I have done everything I can think of and my wife's 300D is still getting about 18 mpg. I have read as many posts as I can find. I need any other helpfull hints you all can provide. Fuel isn't as cheap as it used to be and I would like to get as many mpg as possible.

Thanks in advance,
Mike

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Mike

'80 300D
'84 300D
'85 300D
'87 300D