Some Caig products are geared towards the high end audiophile user and I don't think you will notice much difference lubricating a connector in a vehicle over the more basic product. Most commercial users I see have the D5 spray on hand. I've been using it and its predecessor for over 40yrs.I can get it here on the Canadian side too. https://www.amazon.ca/dp/B0002BBV4G/ref=cm_sw_r_cp_awdb_imm_V7KPN6TY5CKCC8DXKZH5
There’s also the “gold” brand. Is it better?