it still indicate J1 fluid same as marking at my fluid level stick. it mentioned J1 fluid. manual also state J1. So i stick to J1. Just use mitsubishi J1 CVT oil just no diaqueen mark only.Diaqueen is a Mitsubishi brand of oil so if it doesn't have Diaqueen it just means it's not Diaqueen. As long as the oil is a CVT suitable for your car it's good enough. Check with your manual to see if J1 or J4 is suitable.
Incidentally the Nissan NS2 oil is apparently the same used by the Inspira. Same GB same manufacturer just different car brands.