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Distance to Empty - Not even close

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Old 07-12-23 | 03:49 PM
  #46  
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The gas tank issue is annoying but I am still getting correct range at least.

The really weird thing is, why does the gauge show full when there are clearly 3-4 more gallons of room. Perhaps the sensor sits low in the tank?

This is an unfortunate quality of life issue since we dont know how much overfilling is actually bad since it can clog fume valves if overfilled too much. If the tank would give us our actual 17 gallons instead of 12, we would have an easy 500 miles of range per tank.
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Old 07-12-23 | 07:00 PM
  #47  
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Originally Posted by Vanguard
The gas tank issue is annoying but I am still getting correct range at least.

The really weird thing is, why does the gauge show full when there are clearly 3-4 more gallons of room. Perhaps the sensor sits low in the tank?

This is an unfortunate quality of life issue since we dont know how much overfilling is actually bad since it can clog fume valves if overfilled too much. If the tank would give us our actual 17 gallons instead of 12, we would have an easy 500 miles of range per tank.
So there is the bit of pondering I have. Is there really gallons of fuel left in the tank? Or, is ‘full’ really limited to 13 or 14 gallons usable as indicated by the fuel indicator being ‘full’ and the pump kicking off.

Either way, it’s wrong (and a first-world problem). No sexism here, but ours is my wife’s RX, so I’ll just fill it when it says it wants gas. Makes my world easier than having to second guess actual remaining range. She was keenly and actively disinterested when I said ‘just keep driving it, my math says you have up to 120 miles of range left when it says zero’.
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Old 07-12-23 | 07:09 PM
  #48  
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One thing I can add. I recently filled the tank when it was at a 1/4 tank and it took as much gas as when I filled it when I had the low fuel warning.
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Old 07-13-23 | 03:11 AM
  #49  
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I get gas when my 350h indicates 1/2 full. It usually allows me to put 7-8 gallons in if I pump very slow. The fuel system has a flaw as at any station, if I fuel at full speed or even close to full speed the pump will kick off after only a few gallons.
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Old 07-13-23 | 12:02 PM
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What does it say that is your total "range" after fully refilling? Mine used to say about 475 miles but now it's 510 miles.
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Old 07-13-23 | 12:39 PM
  #51  
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When does the low fuel indicator come on? I am down to 22 miles distance to empty - no low fuel light. The manual says it comes on at 2.8 gallons remaining. I am getting 22mpg (350), so shouldn't it have come on at 61 miles distance to empty? I'm going for gas later, let's see how much fuel it takes.
Old 07-13-23 | 02:18 PM
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OK, it came on at 19 miles distance to empty and the car took 14.5 gallons of fuel. I don't know what the manual means when it says it comes on with 2.8gal remaining, that isn't correct.
Old 07-13-23 | 04:16 PM
  #53  
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Originally Posted by daryll40
What does it say that is your total "range" after fully refilling? Mine used to say about 475 miles but now it's 510 miles.
My shows in the 530 to 550 range on the last two fill ups.
Old 07-13-23 | 04:18 PM
  #54  
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Originally Posted by lexusnyca
OK, it came on at 19 miles distance to empty and the car took 14.5 gallons of fuel. I don't know what the manual means when it says it comes on with 2.8gal remaining, that isn't correct.
Some thing is, with out a doubt, wonkers.
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Old 07-13-23 | 05:00 PM
  #55  
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Originally Posted by ggebhardt
My shows in the 530 to 550 range on the last two fill ups.
Wow. I’m getting 32.5 MPG in Pittsburgh (lots of hills). You must be doing better to have a 550 mi range
Old 07-14-23 | 02:22 PM
  #56  
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Mine usually says about 520 range, after a fill up. I use Costco regular. Mostly ex-urban/suburban driving, little interstate.
Old 07-15-23 | 08:51 AM
  #57  
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Mine says 400-425 after each fill up. I can only add 12 gallons or so, even if I keep driving until the DTE only says 'refuel'.
RX500h
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Old 07-24-23 | 07:26 AM
  #58  
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Well here is an odd variation on the comments relating to Distance to empty... I put the gas nozzle on slow fill auto shutoff. DTE start mileage was 22. Filled the tank until nozzle tripped off and then squeezed another few squirts in totally 13 gallons. Distance to empty now reads 425. I then drove about 6 miles and let the vehicle sit for 90 minutes. I went to another gas station very close by and based on some comments here... I tried to see how much more I could add, still using slow fill speed. I could barely squeeze in one more gallon. BUT...THE DISTANCE TO EMPTY DID NOT INCREMENT PAST THE 425 DTE MARK!!! I would have expected it to increment something near another 27 miles. Didn't happen.

For those saying "deal with it" I would disagree. This is like saying if you bought the expensive sound system but couldn't get anything more than level 2 sound out of it... just deal with it. I think they are just waiting until the user satisfaction hits some kind of pain point. This is an engineering fail. This will cause people on longer trips to start looking for gas stations in remote areas when they don't need to. Thanks for listening....
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Old 07-24-23 | 10:18 AM
  #59  
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I have not taken the time to read all of the posts in this thread so my question may have been addressed. I also only have a 2022 RXh but am following here because I am considering trading my Merecedes on a 350h.

Does anyone actually know the algorithim used to compute DTE and how often it is updated? I ask this because when I am traveling and my tank show near 1/4 I start to watch DTE as I plan my next fuel stop. I may even start to drive more conservatively. When slowing down, I have seen my DTE actually increase as I was driving. Seeing that I just assumed that it took some level of "most recent" fuel useage and used that to calculate DTE. What I don't recall is at what ftrequency the value updates.
Old 08-07-23 | 05:45 AM
  #60  
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Mine says 425 miles... and never a mile more even when squeezing another gallon in... this is really starting to irritate me... thx
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