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High Fuel Consumption 700 1991

My 740 was having some take up problems, sluggish and slow when I discovered that one of the spark plugs, (in fact all ) hadn't been changed for 10yrs. (still Volvo originals), so I lashed out and bought a new set of four champions and no problems. However, since changing the plugs my fuel consumption has gone through the roof, true I was running on three before, but all logic tells me that I should improve milage not vice versa, anyone had, heard of this?? Please advise it's costing me a mint in fuel!!!






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New High Fuel Consumption [700][1991]
posted by  Ozsamurai  on Sun May 26 18:30 CST 2002 >


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