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Old 07-04-2020, 02:43 PM   #1
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Denso A/C Compressor Oil spec?

I'm looking for the specific oil recommended by the manufacturer of A/C Compressor for Dash A/C built in 2012. It is supposed to be posted on the compressor but for me that's a very hard item to get a view of. I'm assuming it's a Denso compressor. In a manual written in back in 1999 Denso said ND 8 Oil. Other references indicate the equivalent for ND 8 is PAG 46. Appreciate any help from someone who can view their compressor or if you are at the Gaffney Freightliner Service facility ask them what the sticker reads on the A/C Compressor when they are under there.
Thx
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Old 07-04-2020, 06:59 PM   #2
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I would doubt that the A/C compressor is a Denso item .

I replaced the compressor on my 99 F/L chassis with a part from F/L , the new compressor came with oil installed .

A call to Freightliner's free help line could help confirm the compressor's supplier info and oil required.

1-800-385-4357 have your serial number handy.
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Old 07-04-2020, 07:23 PM   #3
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Skip - I find this all very confusing. Freightliner says Tiffin installs the Dash A/C but then Tiffin references Freightliner for a Receiver/Dryer part. Thank you for the info and I'll follow-up. The box containing the Evaporator for example is Denso so it led me to believe all the components were Denso supplied. PAG 46 oil is the same viscosity as the ND 8 spec and I really don't believe I would hurt anything using PAG 46. I'm just trying to pick brains smarter and more experienced than mine. Appreciate the help
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Old 07-04-2020, 08:02 PM   #4
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I found this diagram a while back ; while I was replacing my compressor , receiver dryer and condenser fan , you may find it interesting too.

For whatever reason the condenser fan I needed came from Freightliner with a Evans/Tempcon P/N on the box.
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Old 07-04-2020, 09:27 PM   #5
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Interesting Skip, -Evans supplies the little Receiver/Dryer on my installation. I previously asked Freightliner about a blend air door reset procedure and in reply to that they indicated Tiffin put in the air handling box and then Tiffin supplied a sketch showing it to be a Denso unit.
However, I wouldn't be surprised to find the compressor is installed by Freightliner then Tiffin runs the hoses etc. A fellow at Evans parts told me they supplied a "Charged Receiver/Dryer" to some manufacturers preloaded with R134a so all they had to do is let it flow so to speak.
Someone knows?
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Old 07-06-2020, 06:25 PM   #6
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Hey Skip, You are right on and thank you for the suggestion.
FCCC sent me the spec sheet for the compressor which is a "Sanden" and the oil spec is their SD-15. I'd sure like to know what Sanden adds to what is probably just PAG 46 oil rebranded with a 200% price increase? When one looks at oil application charts PAG 46 is listed for all the Sanden Compressors listed but, just to be extra careful I ordered the SD-15. I couldn't find the actual Sanden Model # on the Spec Sheet but that might just be old eyes.
I also asked sent an email to Tiffin asking the same question but haven't received a reply as yet.
Thx again,
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