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Old 5th May 2007, 12:03   #1
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Question AC Fuel consumption...

Hi,

I've recently upgraded myself from a M-800 non-AC to Wagon R LXi. I have one doubt. If the fuel consumption of AC is directly proportional to blower speed, or it consumes the same, irrespective of fan speed. Pl clarify
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Old 5th May 2007, 14:11   #2
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Blower speed has no direct contribution to fuel consumption, but with higher blower speed your AC will cut off less, and hence more fuel consumption but you will be hard pressed to notice the difference if you drive in extreme delhi heat in the day.
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Old 5th May 2007, 14:26   #3
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Zilch. No connection. In our heat, there is practically no difference whatsoever as the AC will not get cut off at any point of time.
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Old 5th May 2007, 14:49   #4
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It means, is it better to run AC full speed and then switch it off for some time, when it is chilled..
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Old 5th May 2007, 16:47   #5
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nope its better to leave the ac running in lower speed after using high speed for initial quick cooling, switching off and on will increase the FE on a hot summer day.

again lower blower speed means automatically the ac comp cuts off since grill temp reach max faster
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Old 6th May 2007, 18:07   #6
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Depends..Delhi heat is much more than that of Madras. In my Scorpio the blower runs at its minimum setting and the compressor cuts off when the temp reaches it desired level. The 'kat, kat' of relay lets me know when the compressor switches off and on. And boy, it really cools..

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Zilch. No connection. In our heat, there is practically no difference whatsoever as the AC will not get cut off at any point of time.
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Old 6th May 2007, 19:06   #7
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Even when the blower is at two my Petra chills well, I switch to blower 1 when its cool enough. With full load it is at 3 for some time then goes to 2.
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Old 6th May 2007, 21:59   #8
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Quote:
Originally Posted by scorpio118 View Post
Hi,

If the fuel consumption of AC is directly proportional to blower speed, or it consumes the same, irrespective of fan speed. Pl clarify

I'd like to think that the AC compressor load determines the fuel efficiency
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