Choosing a suitable Opamp to output a voltage reference
The circuit you are attempting to design is undemanding in most ways for the opamps you've selected, except in the output current capability. You say you want to sink 25mA, but the opamps may not be capable of supplying that much output current, depending on the supply voltage, output voltage, and temp. The datasheets give example graphs for Vs = 3, 5, and 15 V, and minimum specs for V+ = 5 and 15 V, but your supply is 8V, so you need to interpolate the given specs. Also bear in mind the back seat of a car could also be -30˚C also (if you live in a climate like mine). The minimum spec over extreme temps for V+=15 volts is 24 mA sinking ability, so this op amp most likely will work for you, but it's not guaranteed to work in a "four corners" robust design sense. If this is a one-time design that you will build one of, it's OK. If you will produce a million of them in a production line, you will have some failures.