This is what it says on the sticker:automotive air conditioner R-12 max Conforms to sae j 639 107/201 Klimaanlage Fur automobile 1.0 kg 2.2lbs. Ausfuhrung Nach sae j 639 123/126 Dimler-benz ag 1.3ks 2.9lbs. Stuttgart-Unterturkheim 124 1.1kg 2.4lbs. The way it is positioned on the sticker,it looks like the 123/126 Dimler-benz ag 1.3ks 2.9lbs pertains to my car. The system will take 2.9 lbs. Is this correct?