interesting, reminds me of me and my friend coming back from san diego, we were a little under half tank and i was scared we werent going to make it. but we barely made it, i had no more cash on me so we filled up with all the nickles dimes quarters all we had, but we made it. i need to read my owners manual. hahaha.

 

i get 150 mi+, but my warning light usually comes on just under 1/2 tank. then it goeas off when i restart. then on, then off, then 1/2 tank, then 1/8 tank. just never go below 1/2 tank now. no yellow. good.

 

off topic- i hate it when someone asks me for money for gas at a gas station to get like 2 towns over to get home. pisses me off that they don't use the cell phone in thier other hand to call a friend or family member to come down with 5 bucks for gas, and that they dont carry the plastic i'll never understand.and according to thepolls in this post, they probablycouldget home on the gas they had in the tank. who's lucky enough to run out in agas station parking lot anyway?

 

crackwhore

 

probably was. happened 3 times this year. people are dumb or they are crackwhores. right-on.

 

This reminds me of that one Seinfeld episode with Kramer testing the limits while test driving a Saab(?) Anyway, whenever you drive with that light on, your HR starts to increase a little.

 

HR?

 

Well, the key thing is that on A4s the gas warning light comes on at 1/8thof atank. That's pretty early I would say ... atleast 2 or more gallons are left, cause every refill are about 16 gallons for my car. I regularly drive 50-55 highway miles after the light comes on - about 35-40 in the city. On one occasion, I drove 16 miles on the highway even after the computer said 0 miles left. So I would say, the reserve is pretty good. Though I would not recommend testing it to the limit [8D]

My only concern is whether emptying (or almost) the tank has any implications on engine performance or tank corrosion. Once I read somewhere that in winters, one should refill when you have atleast1/4th left. But I can't remember the reason for that. Anyone knows?

 

look in your manual for the tank's capacity and then use your avg mpg to give you an idea of what remains, given you have traveled a certain number of miles after a fill up. Once you set a base line, you can use the avg mpg to figure if you are above that consumption rate or below it and then have a pretty strong indication of what you have left. Many models have had fuel gage issues but only one had a recall that I am aware of (A6 certain engine and year) so if you think it is off, don't take a chance. I ran out of gas with 80 miles left on my gage....once.

 

Okay, Genious! How do you supose your idea works? You didnt factor in a hell of a lot of things either. For example so you get the light to come on and you drive to empy with the odometer on, How far do you get? once again you tried correcting me by saying "depending on if the car ispositioned up hill, down hill, or level" are you driving up hill? down hill? highway? urban? it all depends how far you will go when the light turns on. Maybe you hit a set of like 20 red lights in the city what good does the odometer do? same thing as for my calculation idea there are pro's and con's to both so please dont try to sound smarter and than also threaten over the internet. I read your post and also said it is a really bad Idea in mine as you did in yours! I said the idea was really dumb and that you shouldnt do it. If he does it your way it might damage the pump, and still not get anywhere close to the answer depending on where they drive, highway might go longer city is gonna go shorter either way you will never get the same answer, only an average, which you can narrow down with multiple tests. In order to do multiple tests in your case you **** up the pump in mine you dont! Do it a few times and get the average and there is your answer!