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2014 XE CVT
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1,350 Posts
Discussion Starter #1
I usually fill my tank until the pump shuts off, then give another click to make sure it isn't a false shut-off. This has always given me consistent filling, except when the petrol (gas) station forecourt isn't level.

A few weeks ago I had the filler hose at full stretch and couldn't fully insert it, with the result I got more than the usual amount of fuel into the tank. Ever since, I haven't been able to get as much in as I used to, according to the gauge.

Anyone else experienced this, or have any ideas?
 

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Administrator
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14,797 Posts
Yes, you can get more in by holding the nozzle out a little. I have heard of problems occuring when overfilling (CEL) but I have had mine VERY full (to the brim) and have never had a problem.
 

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#8 Post ho
1999 Subaru Forester
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2,441 Posts
Everytime the pump "burps" I find myself hoping that its not full.. usually its pretty easy if I knew the amount that was left in the tank.. Only problem I have is my gas gauge is somewhat inaccurate, doesn't really provide a constant decline in gas.
 

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Administrator
2018 2.5i Premium CVT
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18,679 Posts
I've never found a gas gauge that's accurate. The last quarter tank always seems to go faster than the previous three. It's as if the markings on the gauge are linear but the cross-section of the tank gets smaller as the float gets toward the bottom--possibly to clear the axle.
 

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Premium Member
'09 STI
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4,129 Posts
I think I usually get the same amount in on average. When I was out of state for whatever reason, I noticed as I drove away that my guage was reading at least a gallon or two low. Only happened once.

One drawback to overfilling is one, it usually spills down the side on to your paint. And two it usually makes the interior smell like gas for a while. I personally don't like this but if you're catless, you probably wouldn't notice.

I'm sure this also has a lot to do with the differing mileage claims made here along with wildly differing driving styles and conditions. EPA ratings anyone? :roll:
 

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2004 XT AT
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1,101 Posts
bbottomley said:
I've never found a gas gauge that's accurate. The last quarter tank always seems to go faster than the previous three. It's as if the markings on the gauge are linear but the cross-section of the tank gets smaller as the float gets toward the bottom--possibly to clear the axle.
My XT fuel gauge seems to be the opposite. When it reads one quarter, there's actually more like a third of a tank remaining (judging by how much fuel I can put into it when it reads one quarter). Very non-linear. It takes quite a long time to drop from the F mark, and the first indicated quarter is used up quite slowly. The second indicated quarter goes much quicker. The third indicated quarter more slowly, and then I've still got a third of a tank left.

I've noticed that to properly view the fuel gauge (without parallax error) I have to sort of slouch right down in the seat. Sitting in a normal position I am viewing the gauge from an angle and that makes the reading look lower than it is.

-- Steve
 
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