Quote:
Originally Posted by schmidtj
You do realize the fuel input might just be positioned 3 gallons above the bottom of the tank to prevent sediment from being ingested into the system.
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I always wondered about that - when I was a kid, I had an aunt in a panic because my grandma was driving her car with the gauge slightly below 1/4 tank, and I asked what the big deal was, we had plenty of gas left, and she went off on me about sediment in the tank. Now, she's a bit insane, but it did stick in my head that one should never, as a general principle, let the tank go below 1/4 (which just makes sense anyways, cause you never know)
More recently, though, I thought to myself that assuming that the tank drains at the bottom, any sediment-forming minerals in the tank would be the first thing to go, in theory, so the sediment thing has more recently struck me as being logical at a glance, but not holding up to scrutiny.
Anyone familiar with gas tank designs able to confirm or deny? It doesn't make a lot of sense to me to design a tank to hold 2-3 superfluous gallons which never get used - if I found myself out of gas in a desert, and knew that there were a few gallons in there that the **** car couldn't get at, I'd be hunting down some automotive engineer when I got back to civilization, methinks...