If you are not using Chevron, or have no Chevron dealers near you, I would suggest you try adding Techron additive to a couple tankfulls and see if you get better mileage and throttle response - I can atest to getting 10%+ better hwy mpg with Chevron than with Dhell or Conoco

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Mark _______________________________
2001 X5 4.4i topaz blue/sand Sport, complete Dinan S2 , hitch, V1, tint, BSW Stage 1, Alpine INA-W910BT
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