Briggs & Stratton 30W Engine Oil - 48 Oz. 100028

What is the quality rating on this oil (for example: SF, SG, SH or SJ or higher?

Blue in color now?

Can it survive shipment in a luggage to another county?

How long will this keep after opening. My mower takes 20 oz so the 18 oz. is not enough. so wondering if I can get 2 seasons out of this?