It's about 2.3gal for 2.0L cars, 2.1gal for 1.6/1.8L cars. There is a TSB out for the Protege (I think it's on TheMan's Protege FAQ) that specifies the amounts exactly.Replica said:I'm new to this fancy world of having fancy warning lights on my dash. The PR5 has a low gas tank warning light, I was wondering how much gas is actually left when that light comes on. The owners book did not say, rather "Get gas immediately."