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2004 Dodge Ram 2500 Question: I need to add 2 ounces of SP-15 134a refrigerant oil to my system.

 

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bobT, 5.9L 6 Cylinder Diesel Turbo, Santa Maria, CA, August 23, 2011, 11:38
 Rookie

The Sanden SD–7 compressor used in this vehicle is designed to use an SP-15 PAG refrigerant oil. SP-15 is ISO 68 viscosity, can I use PAG 100 in the little 3 ounce cans as a safe substitute?

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  • Answer #1

    August 23, 2011, 12:48
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     Master

    mixing oils is never a good idea. i would have the system evacuated, added then evaced and charge.

    Roy

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