How big is the gas tank on a 86 bronco 2 xlt 2x4 v6

23 gal

33 gallons (according to 'answers')~

run it down---fill it up---look at how much.~

Mine according to automobile-catalog.com. Might be best to do as judge stated. Fill it up.

takin' it on a long trip?...I understand the price of gas does fluctuate...usually on the up and up....but do not RUN IT DRY! will indeed toast your fuel pump into a uncooled failure~get it down till the needle is running off the scale....when the "fuel" light comes on you have near a gallon left...would be a good starting point as no damage will occur if you fill 'er up immediately~