I read the data sheet for the IRLU8726pbf from Newark's website for International Rectifier:
Figure 1 confirms that, "at a low operating temperature, that the mosfet if fully turned on with Vgs at 5v, when Vds is anywhere above around 2v".
Here are my notes:
The 85 amp limit is awsome.
The Vt threshold voltage is less than 2.5 volts at -55 degrees C. (Fig. 10)
The Reverse Transfer Capacitance is about 10% of the gate capacitance, good.
The Reverse Transfer Capacitance of 205 pF is connected with a 2150pF input capacitance to create a voltage divider. The 9% coupling of drain voltage to gate voltage is good enough for rock and roll. Some devices have 40%, which is not good. Watch that ratio and practice safe specs.