I have been having this problem on my 2012 g37x...havnt been able to get a completely full tank in the car for weeks...always stops at like 7/8 of a tank...very frustrating! I plan on asking my dealer about this when i go in for my next oil change.

 

This is my first post at this Forum; I bought a low-mileage 2011 g37s automatic sedan last October. I've filled the gas tank about 15 times, and experienced the "early cut-off" maybe 3 times. Thanks for the advice here.

I'm coming off being an Acura Vigor owner for 17 years and got a great deal out of the Vigor Club forum. They have far fewer members than the g37 forum, that's for sure.

Ken in Charlotte

 

this has happened to me each time since getting my 2010
and the whole time i was thinking it was my fault

 

For all of you guys who are having this problem, are you trying out different pumps, or always going to the same pump?

I have experienced this maybe 20-25 times already in my G. Moreover, I have experienced this in other vehicles as well. I'm about 95% sure it has nothing to do with a "design flaw" or problem with the G. More often than not, I can almost guarantee when this will happen.

If you happen to be waiting in line, and I do since I usually fill up on weekends at the local Costco, and you see the person in front of you is topping off; then with a high level of certainty this issue is going to happen. By topping off, I mean that the pump hits the shutoff, and then the user continues to pump more gas into their car.

I've witness this stupid behavior for years now, and if the person who used the pump before me did this, filling up my G will always have the same problem: pump thinks the tank is full and automatically shuts off early. If I want to fill my tank completely afterwards, I have to find the "sweet spot" on the trigger that allows for decent flow without just cutting the pump.