Getting Rid of Air Condition parts helps better MPG???

Discussion in 'General Motoring' started by mmdir2005, Apr 25, 2006.

  1. mmdir2005

    mmdir2005 Guest

    89 civil old. Too old to find information in old car price index book.
    I want to take out all parts related to air condition. I hardly use
    air condition anyway.
    Only reason I want to get rid of air condition is for better MPG?
    Is no air condition helps for better MPG?
    mmdir2005, Apr 25, 2006
  2. mmdir2005

    DervMan Guest

    "It depends" is the answer. On the face of it, when switched off the air
    conditioning system adds weight and slightly reduces the efficiency of the
    cooling system (because the condenser sits in the way of the radiator). The
    weight difference is just a few pies, you won't notice an improvement.

    When running, the compressor does sap power, which in turn increases fuel
    consumption. How much will depend on vehicle and environment specifics: in
    high temperatures at low speeds it'll make a significant difference. When
    it's cool and you're on the motorway (freeway) it won't make a noticeable

    If you want to reduce fuel consumption, putting the tyres at the maximum
    load pressures will help a bit. Regular oil changes too. Next time you
    replace tyres, go for ones that have a low rolling resistance. Adopt a
    slower cruising speed. Heh - plenty more fuel consumption "tricks" on my
    DervMan, Apr 25, 2006
  3. mmdir2005

    Matt Ion Guest

    Weight saving aside, the A/C isn't drawing any power from the engine
    when it's turned off, so it shouldn't be an issue. If you really want
    to remove that very small bit of drag it puts on things, removing the
    A/C compressor drive belt may gain you 0.01 mpg. At most, removing the
    components will save a bit of weight.

    The real catch here is that removing it improperly will allow the
    refrigerant to escape, which if your system is still using freon, is a
    BIG no-no. To be done properly, an A/C shop needs to drain off the
    refrigerant. At that point, you're negated any cost savings you'd get
    from the miniscule improved mileage.
    Matt Ion, Apr 27, 2006
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