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I was wondering...do any of you folks have trouble when filling your tank...NOX or TERRAIN...on my Terrain, the gas nozzle shuts off too quickly or something...I know they say you shouldn't "top off" your tank, but the other day I was able to get in another 2 1/2 gallons....I consider that a little more than a top off. Anyone else notice that?
 

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Mine does exactly the same thing. I figure I'd rather be 2 1/2 gallons short when filling up, rather than risk the chance of gas going all over the place (by topping off).
 

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Well all nozzels kick off a little differently but I too have had the same problem. Didnt pay attention to the gallons but it kicked off at $11.74 and I continued (slowly) up to $18.00 before I called it full. Thats in my Equinox.
 

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I always put as much gas in as possible. I had a car that had a pymamid shaped gas tank and the nozzel would always shut off way before the tank was full. I had to fill untill it shut off and then wait for the gas to settle, then add more and wait again for the gas to settle, etc. Yes it was a PITA. I think most car are similar to that. I don't worry about the gas going all over the place with the new type gas caps. I do leave a little space in the summer for expansion unless I know I'm going to continue driving for a while right after filling up.
I just wish all the gages and warning lights didn't come on so early. I only put in 18 gals at the last fill up even after miles after all the warnings came on. If the tank really holds 20 some gallons then I had 2 whole gallons to spare before running out. I suppose they do that to keep from sucking up all the crud in the bottom of the tank.
 

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They have the warnings come on early because the fuel pump is lubricated by the fuel. Its also kept cool by pumping it and if there is hardly any fuel in the tank it gets hot. We all know what happens when electrical pumps get hot. Over time they die.

Ive noticed excess foaming when filling our Terrain the last fill up. The next one Im going to put it on the middle preset thing and see if that works better.
 

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Yes, the slower the later it will shut off, at least that's what I found. Give the fuel time to level out.
 

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There is supposedly some gizmo in the I4 that reduces fuel capacity from what the V6 comes with. Have no earthly idea why they just don't keep both at same capacity. But maybe that gizmo (for lack of a better term and because I don't know where or what it does) has something to do with turning off the pump early when filling up...just a thought.
 

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SnowItch--I now remember that you and I posted on that quite awhile ago. If it's some kind of plug or some such thing, it could very well affect how much gas you can get in the tank before the nozzle shuts down. If they try to reduce weight (by only a couple pounds) by use of the plug for better MPG on the I4, some engineer in Detroit is being WAAAY overpaid!! I'd really like to know why the he!! they would spend design time and extra build $ to make the I4 hold just a bit less fuel. CRAZY!
 

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I fill up at 2 or 3 different stations. The "stop" occurs differently at either one. Some station's pump are a tad too sensitive if you ask me...
 

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I always fill to the absolute max possible. Gas pumps are pressure sensitive, so they typically shut off a little early. I can usually get about an extra 12 liters in (2.5gal or so)

That being said, I think I remember reading in the manual that you shouldn't fill to the gas cap, but I do anyway. I've always done it on every vehicle of mine.
 

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Filling to the max possible definately isn't a good idea. Gas can work it's way out into the vent lines and then to your evap canister saturating the charcoal inside. If it is checked out and everything is working fine you could be on the hook for replacing the canister. They design the system to cut off like that for a reason. I have replaced several canisters that this has happened to. When talking to the customer I found out that this is what they had done. They then stopped overfilling the tanks and didn't have a problem afterwards.
 

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All my life, I've added 1+ gallons more after auto shut off or to next full $1 in every car I've ever owned. Never have had a problem.
Just my experience.
 

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Well rounding to the next dollar or even an extra gallon isn't too bad, when you fill them right to the fill cap you can definately have problems. That is when you get the gas level above the vent line level.
 

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That I won't do. I don't advise it either especially on a hot day, you'ld be surprised how much will come back out.
 

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My Terrain usually takes about 16.0 gallons before it kicks off. I usually fill to near 16.8 it seems if the "e" light is on when i get to the pump.
 
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