High fuel consumption!!!
06-19-09, 10:27 AM
#16
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CAMAracer
Your range is way up there.What does your mpg av come out to. When I bought my sc it was averaging in the 360's on range.I replaced the tires with the 960 pp and the range went up to mid 380's.Question is, what kind of driving are you doing to get that range?How many miles on your sc?
Your range is way up there.What does your mpg av come out to. When I bought my sc it was averaging in the 360's on range.I replaced the tires with the 960 pp and the range went up to mid 380's.Question is, what kind of driving are you doing to get that range?How many miles on your sc?
06-20-09, 10:08 PM
#17
Pole Position
Thread Starter
As a person who has taken his car to only 85mph since ownership, perhaps my comments won't be germane. I avg about 21mpg between city and highway driving. I never can recall figures like your pics demonstrate. There must be something wrong with the computer that's generating your fuel consumption. Have you taken it to the dealer??
I will take your advice and take it to the dealer. Thanks
06-20-09, 10:10 PM
#18
Pole Position
Thread Starter
06-20-09, 10:12 PM
#19
Pole Position
Thread Starter
Full tank can run 240 miles only
I think am paying more that 20K a year on my 04 daily driver
06-20-09, 10:20 PM
#20
Pole Position
Thread Starter
First of all, very aggressive driving, at high speed, like you're doing, will definitely give you poor mileage. Adding in the fact that it's +100 degrees with the AC on will only compound this. Also, your computer isn't extremely accurate and may be less accurate if it hasn't been reset so it can start averaging from zero again. Finally, I would replace your fuel filter and clean out your MAF sensor as well, which can contribute to poor mileage results.
very aggressive driving, at high speed, like am doing, . Adding in the fact that it's +100 degrees with the AC on on my friends LS430 2004 is not resulting the same reading?!
I think you are correct, it is the computer reading wrong or less accurate.
Idid replaced the fule filter and the MAF in the dealer workshop at 17000 miles, the car now is 25000 miles, should I change it again?!
Thanks again
06-20-09, 10:26 PM
#21
Pole Position
Thread Starter
it looks like you're resetting it before taking the reading. if it is reset to zero and you are coasting, it'll say you're getting 30-40 mpg. if you reset it and stomp on it, it'll tell you that you're getting more like 7 mpg. what's your average over a few days? for moderately aggressive driving, i'd say it should be around 15 mpg. if you stomp on it at every light, probably more like 12. personally, i average around 18.
edit: you said you get 240 miles on a tank of gas. i fill up when the light comes on. which is about 16 gallons. if you do the math, that would mean you're getting 15 mpg. which sounds about right.
edit: you said you get 240 miles on a tank of gas. i fill up when the light comes on. which is about 16 gallons. if you do the math, that would mean you're getting 15 mpg. which sounds about right.
So shall I considred this normal?!
06-20-09, 10:29 PM
#22
Pole Position
Thread Starter
Please please please teach me how?!!!!!!
your car is runing double miles of my car!!!!
on my car, Range Approx on a full tank never exceeded 252 miles
06-20-09, 11:24 PM
#23
06-21-09, 12:11 AM
#24
I have secret driving technique!
I just don't mash the foot pedal when I drive, avoid using my brakes when I don't have to by giving myself plenty of space between me and the car ahead of me, set the AC at 76 on hot days or turn it off completely, time my traffic lights so I don't hit reds, draft when possible, drive speed limit (which is 55 in lots of places up here in the SF bay area) and never carry dead weight in my car (trunk is always empty unless returning from the store).
My SC is approaching 100K.
I just don't mash the foot pedal when I drive, avoid using my brakes when I don't have to by giving myself plenty of space between me and the car ahead of me, set the AC at 76 on hot days or turn it off completely, time my traffic lights so I don't hit reds, draft when possible, drive speed limit (which is 55 in lots of places up here in the SF bay area) and never carry dead weight in my car (trunk is always empty unless returning from the store). My SC is approaching 100K.
CAMAracer
Your range is way up there.What does your mpg av come out to. When I bought my sc it was averaging in the 360's on range.I replaced the tires with the 960 pp and the range went up to mid 380's.Question is, what kind of driving are you doing to get that range?How many miles on your sc?
Your range is way up there.What does your mpg av come out to. When I bought my sc it was averaging in the 360's on range.I replaced the tires with the 960 pp and the range went up to mid 380's.Question is, what kind of driving are you doing to get that range?How many miles on your sc?
06-21-09, 03:37 AM
#25
Pole Position
Thread Starter
I have secret driving technique!
I just don't mash the foot pedal when I drive, avoid using my brakes when I don't have to by giving myself plenty of space between me and the car ahead of me, set the AC at 76 on hot days or turn it off completely, time my traffic lights so I don't hit reds, draft when possible, drive speed limit (which is 55 in lots of places up here in the SF bay area) and never carry dead weight in my car (trunk is always empty unless returning from the store).
My SC is approaching 100K.
I just don't mash the foot pedal when I drive, avoid using my brakes when I don't have to by giving myself plenty of space between me and the car ahead of me, set the AC at 76 on hot days or turn it off completely, time my traffic lights so I don't hit reds, draft when possible, drive speed limit (which is 55 in lots of places up here in the SF bay area) and never carry dead weight in my car (trunk is always empty unless returning from the store). My SC is approaching 100K.
and hope to get same results I will start tomorrow
wish me luck and thanks for sharing the info
Last edited by Turboo; 06-21-09 at 03:38 AM. Reason: spelling mistake
06-29-09, 09:44 PM
#26
Pole Position
Thread Starter
however, I took my car to the dealer and they have reset the ECU and they did a very strang thing!! they attached both wires of the car battery to the negative pole of the battery for a second + & - to -
and then put it back as they are
+ to +
&
- to -
!!!!!!!!!!!!!!!!
I asked why? and they said to flush the memory of the sensors?
anyway the problem is solved and the readings are reasnable now and the average is between 19 - 20
06-30-09, 07:35 AM
#27
Lead Lap
CAMAracer, are you sure about the 4 gallon reserve? From what I've observed, when the number is near zero, the fuel gauge is also at the bottom and the light comes on. I've filled up in these conditions and put around 19 gallons in. Since we don't have a 23 gallon tank, I'd say that qualifies as empty. (My wife's Camry is equally empty when the light comes on.) From what I can tell, once the fuel light comes on, you have about 1 gallon or less left. (I have an '02 SC430.)
06-30-09, 09:37 AM
#28
07-01-09, 10:03 AM
#29
I'm positive about the reserve tank because when the number hits zero and I fill up, I put in about 16-17 gallons in. According to the factory spec sheet, we carry 19.8 gallons. I've driven my car as a daily and I keep an eye out on my fuel consumption so I'm rather sure about this. But maybe the ECU on our cars are different because the light comes on just as the needle barely reaches the bottom. And from my experience, I can drive with the needle dipping really low before I completely run out (which I've done once 
).
).CAMAracer, are you sure about the 4 gallon reserve? From what I've observed, when the number is near zero, the fuel gauge is also at the bottom and the light comes on. I've filled up in these conditions and put around 19 gallons in. Since we don't have a 23 gallon tank, I'd say that qualifies as empty. (My wife's Camry is equally empty when the light comes on.) From what I can tell, once the fuel light comes on, you have about 1 gallon or less left. (I have an '02 SC430.)
07-01-09, 11:03 AM
#30
Intermediate
I hadn't gone 300 miles once on an all freeway trip and the low fuel light came on and I thought WTF. Time to go to the shop. Then I looked down and I had been driving with the gearshift to the left in 4 the whole time instead of over to the right in D. Made a huge difference in gas mileage. Usually If I set the cruise at 70 I can just hit 500 miles when the low fuel light comes on.It usually takes about 18.5 gallons then to fill up to the top.