285 miles

[LS1 TA]

Today I make personal history, 285 miles on one tank of gas. Atleast I hope because I left me phone at home, which is 12 miles from work and then one more mile to a gas station.

[Y2KHAWK]

Hope ya make it.

[LS1 TA]

Me too. my gauge always says E but when I fill it up it only takes 13 gallons. Been on E for 2 days now and still going. I punched it around a corner this morning and it didn't sputter so I think I'm good.

[Steel2686]

This reminds me of that Seinfeld episode when Jerry went to buy a Volvo from Puddy, and Kramer and the salesman took a car out for a test drive and drove it until it was empty.

[LS1 TA]

Are the fuel tanks on the fourth gens the same as a third gen. The first half of the tank goes a lot slower because of the shape of the tank. The top part holds almost twice as much.

[Steel2686]

Yes. In fact, it's that way on almost all GM cars for some reason. I've owned nothing but GM, and all of my cars have been that way. When the needle dips just under 1/2 tank, it sinks like a stone.

[LS1 TA]

That sucks man because I adjusted my timing and did all of the other goodies to improve gas mileage. The I drove to El Paso texas and back (185 miles) and I still had half a tank. 80 miles later I'm on E. I was pretty excited there for awhile, I had grand visions of 320+ miles on a tank of gas.

[Steel2686]

What's even weirder, is that my '91 Bravada stays on the 1/2 tank mark for the longest period of time, then drops like crazy. It doesn't do that at any other point on the guage other than 1/2 tank. Strange.

[MN6WS6]

While it's always nice to know what the fuel range is of your vehicle, you shouldn't do that on a regular basis. As we all know, almost all GM vehicles require 1/4 tank to keep the fuel pump submersed and cool. If you keep running it like that, you take a great risk at fuel pump failure. And as one of the guys who refuses to chop a big hole in my car, fuel pump replacement in an f-body SUCKS!!

[LS1 TA]

Oh crap, didn't think about that tid bit of info. I had better quit messing around and get some gas. I've done the fuel pump thing twice already and like you said, no fun. Especially since I live in BFE NM and its fixing to be in the triple digits pretty soon.