lexus oil change?MOBIL 1 SYNTEC? AT 96k MILEs?

I wouldnt rush to full syntec.
use semi syntec which is 50/50. on this oil change then on your next oil change go fully synthetic.
thats what I would do.

unless you drain your conventional oil really good to the last drop, like letting it drip over night.. feel me?

is wayyy tooo late won't make ANy difference
should be used in the first year
but IF u don't mind spending extra $10-15 everytime then go ahead
still make a tinnnny tinnny bit better since FULL SyNTEC is very very good for winter ,easier for the car to start and run smoother but remember if u start to use FULL SyNTEC u have to keep using it until your car turn to Sh*t
i will stick with FULL SyNTEC since it can make the car run an extra 5000+km overall