Nissan Car Lounge - Almera, Juke, Latio, Qashqai, Sylphy, Teana Owners > Latio
Help help on FC
jliow:
Hi Guys just wanna share my opinion
First, the car is owned previously, so do check out the filters, and perhaps flush engine, not much details I had, but these are plausible things I would do. in short, ensure the car is as stock is as possible on the components. this inc ensuring the tyres and rims are stock or near stock spec
Next, regarding fuel, I find different brands of fuel have different sorts of additives. some cleaner, some more power, some I dun know if any additives existed. So different brands of fuel in my opinion will give you different results and cost factor. when I took my new car, i remember vividly the car salesman of 25 yrs with TCM said to me as I start the engine "eh dun use 92, will not be good for your car engine", which on the 3rd mnth I disregarded his advise and when ahead with 92 fuel, I got a shock, 60KM for just a quater, at E light it was 320KM, further verified with another 3 full tanks relative result observed. reverting to my "normal" brand, I consistently get same result, which was like "spoilt", so I went for the "branded" cleanest and premium priced fuel for 2 full tanks before acheiving normal FC with my regular fuel
with regards to FC reading I disagree the practice of using a quater mark as a good indication. the "float" in the tank for reading fuel status is always in "unstable" state, meaning when U read your fuel meter, please ensure U are really on a flat plain, U can do a simple verification, when your E light just comes on, find a steep ram or sometimes a slope, and u will notice the E light goes away, I've also noticed on a bloody hot day, the E light seems to come on rather quickly and disappears when I collect my car in the cool evening and only to reappear again when I completed a 25KM journey
Our car weighs higher when fully fueled, as the car uses fuel, the car weight goes down gradually, thus the FC will range across from a fully fueled status to the last 10L, this is no rocket science but straight forward engineering facts, where the FC is in propotion to the overall weight of the car, attributed by how much fuel is left vs the distance travelled plus engine idle.
As for ECU, it constantly "learns" your driving pattern, takes about a few days to adapt it. Anyway when I do serviceing in TCM, I was always reading a slip given that says "ECU RESET DONE", which I find it annoying as the car needs to readapt to my driving style which in the midst cause me to have higher FC. So dun have to waste time and money for the sole purpose of resetting ECU.
So in summary, just ensure the car is stock, well maintained, optimally fueled and enjoy.
drixsome:
Hi jiliow, thanks for sharing your thoughts but can I just point out about how you said:
"Our car weighs higher when fully fueled, as the car uses fuel, the car weight goes down gradually, thus the FC will range across from a fully fueled status to the last 10L, this is no rocket science but straight forward engineering facts, where the FC is in propotion to the overall weight of the car, attributed by how much fuel is left vs the distance travelled plus engine idle"
I can't agree more with you on this which is why I sometimes psychologically make myself feel better by thinking that running my car on half a tank is more "fuel efficient" for point a to point b commuting.
Also carrying a full tank of fuel adds load and is akin to running SOC training with 2 full water bottles when you only can drink the water after you finish your final run down..... :w00t:
clarence:
There are pros and cons on driving with a full tank or less than 1.2 tank.
Full tank
- Ensures your fuel tank will not rust
- Your fuel pump has an easier job due to the pressure from the fuel
- Heavier car which translates to a little higher fuel consumption (neg).
1/2 tank or less
- Lighter car since more economical
- Fuel tank may rust, but this is not an issue if you drive daily
- Fuel pump works harder
ahhoy:
--- Quote from: clarence on March 04, 2010, 11:19:17 AM ---ahhoy,
It is advisable to top up your tank when your fuel indicator is at the 1/4 level.
This is so as not to stress the fuel pump over the long term.
The higher the fuel level in your tank, the higher the pressure and the fuel pump need not work as hard.
Just imagine a water dispenser. When it is almost empty, you will notice that the water comes out slower.
An almost empty tank of petrol also means that all the dirt at the bottom of the fuel tank will be sucked by the fuel pump, but all these dirt will be filtered by the fuel filter which means you have to change your fuel filter more regularly.
--- End quote ---
Hi Clarence, thanks for the advice.
shawnie:
wow u guys are the best... feel so enriched!! haha
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