Trooper fuel tank capacity?
Gerry Morgan
The manual for my 1989 Isuzu Trooper claims that it has a
21-gallon (US) fuel tank. But when I fill it up from the
half-full point, it takes 8 gallons. And when I fill it
up from the red 'empty' marker, it takes 16 gallons. I know
that fuel gauges are not linear, but 5 gallons seems a lot
of fuel to be left over when the gauge registers empty.
Can anyone confirm (from personal experience - not from the
manual) that the capacity really is 21 gallons. I'd hate to
discover miles from anywhere that the manual is wrong.
Gerry
Peter D. Hipson
>The manual for my 1989 Isuzu Trooper claims that it has a
>21-gallon (US) fuel tank. But when I fill it up from the
You *trust* your fuel gauge? <g> Yes, the tank meets the
specifications (unless damaged, or replaced with a non-standard one).
Get a two gallon can of gas. Next, fill the can, and your tank. Zero
your trip odometer. Drive till you are out of gas! Not the trip
odometer mileage, pour in the two gallons. Drive to the nearest gas
station and fill up--it should take about 17-19 gallons depending on
life in general...
s
Ronald Marsh
>The manual for my 1989 Isuzu Trooper claims that it has a 21-gallon (US)
>gallons. And when I fill it up from the red 'empty' marker, it takes 16
>gallons. I know that fuel gauges are not linear, but 5 gallons seems a
>lot
>of fuel to be left over when the gauge registers empty. Can anyone
>confirm
>(from personal experience - not from the manual) that the capacity really
>is 21 gallons. I'd hate to discover miles from anywhere that the manual
>is
>wrong.
The tank on my 86 Trooper seems to also only be 16 gallons.
------------------------------------------------------------------------
Ron Marsh
Computer Science Department B.S. Physics 1985
North Dakota State U. M.S. Comp. Science 1995
Fargo, North Dakota PhD Comp. Science 199?
rma...@plains.nodak.edu http://www.cs.ndsu.nodak.edu/~rmarsh
1980 4x4 Toyota truck
1986 4x4 Isuzu Trooper II
1990 Harley Sportster "my Little Bagger"
------------------------------------------------------------------------
Chris Lyser
rma...@plains.NoDak.edu (Ronald Marsh) wrote:
[quoting Gerry Morgan]
>>The manual for my 1989 Isuzu Trooper claims that it has a 21-gallon
takes 8
>>gallons. And when I fill it up from the red 'empty' marker, it takes 16
>>from the manual) that the capacity really is 21 gallons. I'd hate to=20
>>discover miles from anywhere that the manual is wrong.=20
>
>[Marsh] The tank on my 86 Trooper seems to also only be 16 gallons.
>Ron Marsh =20
> Computer Science Department B.S. Physics 1985
> North Dakota State U. M.S. Comp. Science 1995
> Fargo, North Dakota PhD Comp. Science 199?
Ron,
In my experience with my '88 Trooper, purchased new:=20
the gauge is only a rough predictor of when you will need to refuel.
Watch for the yellow low-fuel warning light in the instrument cluster.
The light seems to be calibrated to appear intermittently when 50
miles (80km) of fuel remains. This is also the point where the fuel
gauge needle just touches the edge of the red range. As soon as the
light is glowing steady you are down to an estimated 20 miles and the
needle is centered in the red.
Per the owner's manual, E=3D0.28 gallon remaining, 1/4=3D5.3, 1/2=3D10.0,
3/4=3D14.3, and F=3D21.9.=20
The back cover of the manual also states "21.9 US gallons (83
liters)". Since I drive past 2 gas stations in each direction on my
2-mile commute, I sometimes ignore the warning light until Saturday,
and have run it down to where it took as much as 21.4 gallons. Never
ran out......so far.
My rule of thumb for refueling on highway trips is to always top off
and reset the trip meter. Then expect 400 miles if conditions are
ideal; or reduce that by as much as 100 miles after considering steep
terrrain, wind, trailer towing, etc.=20
Before you follow my example, I agree with Hipson: Carry a gas can on
trips around town and see far you can push it. I -think- all the
4-door Trooper II's have the 21.9 gallon tank. YMMV!
Chris
BA Political Science, Cal State U, Sonoma 1970
MBA, Cal State U, Sacramento 1977
Klint Karch
I've run my '89 Trooper out (don't ask) and it held better than 20
gallons after I dumped one or two in and drove to a station. By the
way, my guage seems pretty close, and when the little *fuel* light
comes on, I am down to about 2 or 3 gallons left.
Klint
Gerry Morgan wrote:
> The manual for my 1989 Isuzu Trooper claims that it has a
> 21-gallon (US) fuel tank. But when I fill it up from the
> half-full point, it takes 8 gallons. And when I fill it
> up from the red 'empty' marker, it takes 16 gallons. I know
> that fuel gauges are not linear, but 5 gallons seems a lot
> of fuel to be left over when the gauge registers empty.
> Can anyone confirm (from personal experience - not from the
> manual) that the capacity really is 21 gallons. I'd hate to
> discover miles from anywhere that the manual is wrong.
>
> Gerry
Kong
>> The manual for my 1989 Isuzu Trooper claims that it has a
>> 21-gallon (US) fuel tank. But when I fill it up from the
>> half-full point, it takes 8 gallons. And when I fill it
>> up from the red 'empty' marker, it takes 16 gallons. I know
>> that fuel gauges are not linear, but 5 gallons seems a lot
>> of fuel to be left over when the gauge registers empty.
>> Can anyone confirm (from personal experience - not from the
>> manual) that the capacity really is 21 gallons. I'd hate to
>> discover miles from anywhere that the manual is wrong.
I have a '89 and the manual also states 83 litres. I often work out my
fuel consumption (diesel approx. 9.8 - 10.7km/litre, therefore
theoretical max. range would be 813 - 888 km on full tank). I had
done 800km once on a full tank and there is still some fuel left. So
I know for sure that the fuel capacity stated is pretty close. And
no, I didn't push my luck any further nor since and didn't want to
find out the ultimate driving range on a full tank. But now I always
fill up at 700km to be on the safe side.
kong
Ronald Marsh
Chris wrote:
>Before you follow my example, I agree with Hipson: Carry a gas can on
>trips around town and see far you can push it. I -think- all the 4-door
>Trooper II's have the 21.9 gallon tank. YMMV!
I don't know if it makes any difference, but mine is a two-door version.
Also, I based my fuel capacity estimate by filling the tank after the
guage had reached "E". Since it only took about 15 gallons, I assumed a 16
gallon tank. Now if the gauge is (way) off, I could have a much larger
tank than I think.
------------------------------------------------------------------------
Ron Marsh
Computer Science Department B.S. Physics 1985
North Dakota State U. M.S. Comp. Science 1995
Fargo, North Dakota PhD Comp. Science 199?
rma...@plains.nodak.edu http://www.cs.ndsu.nodak.edu/~rmarsh
Peter D. Hipson
On Sat, 29 Nov 1997 10:31:36 GMT, ly...@ns.net (Chris Lyser) wrote:
>and reset the trip meter. Then expect 400 miles if conditions are
>ideal; or reduce that by as much as 100 miles after considering steep
>terrrain, wind, trailer towing, etc.
>
Exactly what I do. I get 400 miles usually, unless I'm pushing it in
4x4 (plowing or off roading). I'll refill at 300-350 usually and have
lot's of fuel left when I do that. My low fuel light died last year,
so I can't use it anymore--when it worked, it was great. Worked much
better than the guage!
Peter D. Hipson
On 28 Nov 1997 16:12:11 GMT, rma...@plains.NoDak.edu (Ronald Marsh)
wrote:
>The tank on my 86 Trooper seems to also only be 16 gallons.
Something wrong there. Maybe the tank was damaged? I've had three of
'em, and all would hold 22+ gallons.
daniel justin weiss
Peter D. Hipson (ma...@darkstar.mv.com) wrote:
[Trooper Tank = 22 gallons]
I'll throw in my "me too" here and second the 22 gallon theory. I used to
always get 400 miles out of my '87's tank, but recently this has fallen to
350 or so.
Here's something weird: I swear the fuel low light has gotten less
sensitive over the years. I remember it once lighting up intermittently
around 2-3 gallons left, but now it only goes on--and stays on--when I am
down around 1 gallon.
--
Daniel Weiss || djw...@midway.uchicago.edu
Craig S. Gillen
actually, for the sake of accuracy, the trooper tank is 21.9 gallons
daniel justin weiss wrote:
--
Craig S. Gllen
Virginia Polytechnic Institute and State University
Blacksburg, VA 24060
JFlana1045
I have a 1992 Trooper and it has a 21.5 gal fuel tank. When it shows empty I
still have about 8 gallons left in the tank. I see some don't like the idea of
having fuel left in the tank when it registers empty, but I see it as a
reserve. If I'm careless and go into the back country without filling up and
it shows empty, I know I can go 100 miles before I run out of gas. It's
better to show empty and still be able to drive then show empty and have to
walk out. My 92 gets 18mpg on the highway, 15mpg in town and 11mpg towing a 19
foot travel trailer.
Wally
Ronald Marsh
Wally wrote:
That'd explain why on "E", I can only get about 15 gallons into it.
Craig S. Gillen
yeah, i noticed that, i always wondered why when the gage reads empty it only takes
13 to 15 to fill. thats a good way to look at it.
JFlana1045 wrote:
> I have a 1992 Trooper and it has a 21.5 gal fuel tank. When it shows empty I
> still have about 8 gallons left in the tank. I see some don't like the idea of
> having fuel left in the tank when it registers empty, but I see it as a
> reserve. If I'm careless and go into the back country without filling up and
> it shows empty, I know I can go 100 miles before I run out of gas. It's
> better to show empty and still be able to drive then show empty and have to
> walk out. My 92 gets 18mpg on the highway, 15mpg in town and 11mpg towing a 19
> foot travel trailer.
>
> Wally