R134a N.DS-Oil 8 for car airconditioner and compressor oil. How to Used:1. When overhauing the compressor, put the oil in the discharge manifold of the compressor.2. Use this oil only the applicable models in the repair manual3. Immediately after using oil, put on the cap completely4. Do not mix with other oil.We can offer weight:70g. 250g and 350g R134a N.DS-Oil 8(Gary Cans)