[INDENT]Hi All,,
As summers are here ! Most of the cars would be getting their cooling system serviced so thought to share this here.Just wanted to share what i got to know few days back regarding Denso A/C Compressors. Maybe i can save someone ending up destroying their AC compressor just because of lack of knowledge among the A/C service guys!
Denso Compressors should only be filled with ND-OIL 8 compressor oil.
My A/C compressor was giving a strange noise while the car idles. As soon as i give accelarator the sound goes. In short the compressor becomes soundless on 1.5K RPM and above. Got it inspected from 3 - 4 wshops and all said to change the compressor as the noise is from inside the compressor.
So got the old compressor out and took it as a sample to buy the exact thing. There On the compressor it was mentioned "Only Use ND-OIL 8" on the side of the compressor which would not have been visible to read if the compressor had not been taken out , bought the compressor from Bilal gunj and back to the wshop, when came the turn to put oil in it , the A/C guy brought a 1.5 liter water bottle which had oil in it to put it in the compressor.. I asked him which oil is this and he simply replied "Compressor Oil hai ji" ... I asked haaan leikin kya grade hai , koi code wagaira ? he said nai sir bas compressor oil k naam say milta hia Temple road say .. Hmmmmmm.... Asked 2 - 3 other A/C wshops and they also replied the same k jinaaab aik hi cheez hai , bas Oil daalna laazmi hota hai jo marzi daalo.. Lol..
Anyways I had already decided to only fill my compressor with ND OIL 8 as soon as i read it on the compressor, as there must have been a reason why it was mentioned on the compressor,, finally the oil was available at Punjab Car A/C.. Bought the oil from there and got it filled in the compressor..
Now if i wouldve gone for a normal A/C service, I wouldve never know that ND OIL 8 needs to be filled in it and eventually I wouldve ended up getting the desi oil filled eventually the compressor might go Bad OR Cease. As the A/C compressor is not taken out in case of just servicing the unit.
From another source, i got to know that these 660CC cars have rotary compressors, So maybe thats the reason that they should only be used with specifically ND-OIL 8.. Just like NO SYNTHETIC OIL in rotary engines of Cars! only Mineral Motor oil should be used.. Still Not Sure. Maybe experts can tell..
ND-oil 8 is used in the following DENSO Compressor types: 10PA, 7SB, 6SE, SC, 6CA series [/INDENT]