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This week is the second time my wife gases up her Q50 hybrid. I filled it up for her the first week and it took about 14 gallons. The needle was approaching red zone no warning light yet. Second time she said the warning light came on and she filled it with 15 gallons. The manual says it is should have 20 gallon capacity.
Is this true for the hybrid?
Seems the warning light shouldn't be on if I have 5 gallons in the tank... Unless the hybrid tank is smaller.

Been getting 424-450 miles per thank almost 100 more miles per tank than the retired G35 and using less gas.
 

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Hybrid 17.8 gallons.
Gasser 20 gallons.
 
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I haven't filled up on an empty tank and I was a bit confused to.
I filled up with the needle on half and it took 7 gallons so I kind of assumed it was just a smaller tank.

Thanks for clearing things up chilibowl.
 

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Even the Infiniti Q50 Hybrid's Owners Manual is incorrect.
I was wondering where you all found the 17.8 gal. Good thing you told me. I've been driving into the red every time, filling up with 15 gallons, and assuming (per owners manual) I have a 20 gal tank - leaving 5 gals to go. Yikes.

Have you noticed how fast the needle drops when it hits the red!
 

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I was wondering where you all found the 17.8 gal. Good thing you told me. I've been driving into the red every time, filling up with 15 gallons, and assuming (per owners manual) I have a 20 gal tank - leaving 5 gals to go. Yikes.

Have you noticed how fast the needle drops when it hits the red!
My salesperson told me they hybrid was 17.8 and the gasser was 20 back in April of last year when I started talking to him. It was also listed in the material that I was given and is currently on the Infiniti website under specs.
 

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My salesperson told me they hybrid was 17.8 and the gasser was 20 back in April of last year when I started talking to him. It was also listed in the material that I was given and is currently on the Infiniti website under specs.
CarolinaQ50 is correct:
Following info from Q50 Hybrid ESM, section/page FL-23.
Fuel Tank : Standard and Limit
Fuel tank capacity: Except for MEXICO Approx. 67.4 liters (17-7/8 US gal, 14-7/8 Imp gal)
 

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I've gotten to the buried "E" on the needle, no range in the range readout, and never gotten it to take 16 gallons. So when I think its dead empty, I've still got two gallons and at least 50 more miles? I was sure it was probably a 16 gallon tank. Nice to know, but the gauges should be more accurate, as should the "range" feature.
 

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According to the U.S. Infiniti site, the gasser has a 20 gallon tank, and the hybrid has 17.6 gallons. It doesn't make sense that Canada would have different tanks. I did check Canada's site, and they do list the different dimensions. Does anyone here know why the difference?
 

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I've gotten to the buried "E" on the needle, no range in the range readout, and never gotten it to take 16 gallons. So when I think its dead empty, I've still got two gallons and at least 50 more miles? I was sure it was probably a 16 gallon tank. Nice to know, but the gauges should be more accurate, as should the "range" feature.
The question to ask is this. Is that 17.8 the total capacity or the usable capacity. There will always be some small amount in the bottom of the tank that cannot be scavenged.

Who will volunteer to run it dry and see?
 

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The question to ask is this. Is that 17.8 the total capacity or the usable capacity. There will always be some small amount in the bottom of the tank that cannot be scavenged.

Who will volunteer to run it dry and see?
No manufacturer states a "usable capacity". It is one value, and that value is purely the entire size of the gas tank.

The thing is, yeah the gauge may be "off", but Nissan is NOT stupid. They do this intentionally so you dont run out of gas. The gas "light" is there to scare you so you get gas in it as soon as you see the light. This is actually intelligent to do as running out of gas and getting dirty "bottom-of-the-barrell" remnants into your fuel injectors isnt really all that healthy for them.

So, with that being said, be smart and just put gas in your car when it reaches a "Quarter Tank". Yeah, you will most likely still have 8 gallons left over, but having gas in your tank is actually healthy for your fuel pump, as gasoline has a tremendous cooling effect on the pump, and will allow the fuel pump to last its expected lifetime.

Also, never overfill either, that is also not good to do.
 
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