Won't revving the engine a few times empty the tank most of the way anyways?

I'd drain and put in mostly fresh. 2 years = heavy varnish. Hopefully it did not varnish up the injection system....

I'd never let a car sit that long without at least running it once or twice a month....Gas goes bad in 3-4 months without stabilizer. Perhaps store it with only 2-3 gallons in it? That way if you run it an hour a month it will have fresh gas so long as you add a gallon or two each time.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)