SC430 - 2nd Gen (2001-2010)

How Far Before Empty ???

Old 04-01-15, 09:44 PM
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texsexlex
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Default How Far Before Empty ???

The other day, I was driving home from the paint/body shop. My low fuel indicator came on, so I switch the trip info over to see the estimated miles left. I drove the car until the mileage indicator switched from reading 1mile left,to reading "low fuel"....so my question to you guys, does anyone know how much gas is left in the tank, when the indicator reads "low fuel" ??
Old 04-01-15, 10:57 PM
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bb430
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When I was working in Toyota, all the cars that showed no fuel(0 mile), can do about 10-15 miles more. We still do test drives(about 3 miles) couple of times and then go to gas station. Then again, all cars are different and depending on how you drive the car too. I know we all push the limit sometimes but its really no fun running out of gas and needed help.
So...I would say 10 miles after showing empty.
Old 04-02-15, 04:19 AM
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Helogadget
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Since I am a SC430 newbie, I am still learning the little things about the car. I noticed a couple of days ago on a trip that although my "fuel range" said I only had 24 miles left, my gauge showed that I still had a little over 1/8 a tank and my fuel low light had still not lit. I stopped and filled up and it took a little over 16 gallons.

I wonder if there is a calibration procedure for the range or is it a fixed algorithm?
Old 04-02-15, 04:50 AM
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ShawnOk
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I've pushed to 30 miles after my LCD reads "Low Fuel." I wouldn't recommend it. Got pretty scary on the highway at 75mph in Oklahoma where turnpike gas stations are rare and few between.
Old 04-02-15, 05:17 AM
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Have been tempted to run mine to stop(with can in trunk), but then figured why? Range could easily vary 50-75 mi due to traffic conditions & speed.
Old 04-02-15, 07:10 AM
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iolmaster
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I have filled my tank immediately after the low fuel light comes on and there is approximately 3 gallons left in the tank at that time. If you average 20 miles to the gallon it is easy to do the math.
Old 04-02-15, 07:30 AM
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Habious
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On my 03, the orange light comes on at 15 miles of range.

I've driven about 20 miles beyond "Low Fuel", but I wouldn't want to push it much further than that (without a fuel can in the trunk).
Old 04-02-15, 07:49 AM
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Not a good idea to play with running the tank down as low as it can go - the fuel pump on the SC is in the gas tank, and the fuel helps keep it cool. I had the same arrangement in my Honda Del Sol, and I burned up three fuel pumps (over ten years) because I played that game too often (plus I had a supercharger on it - so the fuel pump was under heavy load a lot ). If you can't replace it yourself (a very nasty job), due to labor rates, it's VERY expensive.

Just get in the habit of filling it up just BEFORE you hit the low fuel light & your fuel pump should last as long as the car....
JMHO
Old 04-02-15, 09:14 AM
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kuWuPt
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^ Nam is right. Not worth the risk of your fuel pump running dry. I have gone about 20 miles or so after the low fuel indicator has come on though.
Old 04-02-15, 12:17 PM
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Harold57
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Typically a Toyota low fuel light comes on with about 1 gallon of fuel left. It is not accurate. I haven't found any Toyota (or Lexus) rep that will even give a figure on it but that I what I've observed. So on my '02, it is usually in the 15 to 30 mile range when the light comes on.

Something to consider about running a tank low is if you have any sediment or water in your tank, which you likely do after a few years of driving, the pump will be sucking that gunk up when it gets near the bottom. It could wind up being an experiment that you wished you hadn't embarked on.
Old 04-02-15, 04:17 PM
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Originally Posted by ShawnOk
I've pushed to 30 miles after my LCD reads "Low Fuel." I wouldn't recommend it. Got pretty scary on the highway at 75mph in Oklahoma where turnpike gas stations are rare and few between.
....lol...you are a brave soul & I definitely know that stretch of highway
Old 04-02-15, 04:26 PM
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Originally Posted by Harold57
Typically a Toyota low fuel light comes on with about 1 gallon of fuel left. It is not accurate. I haven't found any Toyota (or Lexus) rep that will even give a figure on it but that I what I've observed. So on my '02, it is usually in the 15 to 30 mile range when the light comes on.

Something to consider about running a tank low is if you have any sediment or water in your tank, which you likely do after a few years of driving, the pump will be sucking that gunk up when it gets near the bottom. It could wind up being an experiment that you wished you hadn't embarked on.
...definitely nothing i want to experiment with & have never ever let the "low fuel" light come on, until this recent trip home. I knew I needed fuel when I started home & when I pulled over, I realized that I had left my wallet at my buddies shop. I was about 10 miles from home & about 20 miles from my wallet, so I choose the shorter trip...lol
Old 04-02-15, 07:04 PM
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Originally Posted by Helogadget
although my "fuel range" said I only had 24 miles left, my gauge showed that I still had a little over 1/8 a tank and my fuel low light had still not lit. I stopped and filled up and it took a little over 16 gallons.

I wonder if there is a calibration procedure for the range or is it a fixed algorithm?
There is a "calibration" function - press and hold the Trip Info button until the display clears. If you don't do that, the computer is averaging readings over the time since it was last reset and as the new guy you may not be driving like the prior owner. Resetting it every couple/few tankfuls lets you get a better idea of what the real range & mpgs readings are.
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