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Pacing to 750 km on 1 tank

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orangehonda
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Posts: 33
Joined: Fri Aug 22, 2014 1:13 am

Pacing to 750 km on 1 tank

Post by orangehonda » Sun May 10, 2015 6:47 pm

90% expressway, 10 % city


http://eco-hondacar.blogspot.sg/2015/05 ... -to-1.html


The last notch on the fuel gauge is always a psychological battle.

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Previous low fuel lamp switched on at 673 km on Apr 30, 2015

Here are the stats...

Last refuel - Apr 30, 2015 1839hrs
Start mileage 109,672 km
Fuel nozzle auto cut off: 48.4 L
Topped up to 50.002 L (13.21 US Gal)


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VEHICLE SETUP
Age: 7, I took over at Year 6
1.8L 4cylinder Natural aspirated R18A Honda
Auto transmission
16"rim, 36 PSI or 250 Kpa
Shell 5w40 Weighted oil, last change at 104,500 km
No spare tire, but made contingencies just in case
Every other equipment are stock
Max tank capacity 55L


Drive technique
Minimal air conditioning usage
No coasting
Easy on pedal


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The mileage tracking will start from here

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May 5, 2015 @ 1846 hrs - 457.4 km
The 500 km mark

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May 6, 2015 @ 1859 hrs - 110,172 km / 500.2 km

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May 6, 2015 @ 2042 hrs - 530.6 km

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May 7, 2015 @ 1020 hrs - 110,256 km / 583.7 km
Passed the 600 km mark

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May 7, 2015 @ 1913 hrs - 611.3 km

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May 8, 2015 @ 0934 hrs - 110,333 km / 661 km

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May 8, 2015 @ 1713 hrs - 681.7 km

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The mark of 673 km Low Fuel Lamp is surpassed.

The Low fuel lamp lit up on 687.1 km

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May 8, 2014 @ 2139 hrs, Low Fuel Lamp Lit - 687 km
750 km is gonna be tough.

The notches are not proportional since the tank is not.
The needle drops faster after the 'Half Tank'

Pacing to 750 km on 1 tank (Down to 1 bar) - Final Part

http://eco-hondacar.blogspot.sg/2015/05 ... -1_10.html

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The last time I clocked was 704.5 km, it was 31.5 km after the Low Fuel Lamp was lit.

The most thrilling part for all drives will be knowing when to throw in the towel and head for the pump station.


For this leg, the lamp lit at 687 km and i finally refuelled at 703.2 km

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May 9, 2015 @ 0850 hrs - 703.2 km

The fuel receipt

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Topped up to full tank with Caltex 92. Photo showing same odometer 110375 km.

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May 9, 2015 @ 0855 hrs - Final mileage 110,375 km - 703.2 km

http://www.fuelly.com/car/honda/stream/ ... nda/336534

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After thoughts

The distance of 750 km was not achieved, but the fuel consumption has improved.

Last refuel - Apr 30, 2015 1839 hrs VS. This refuel - May 9, 2015 0855 hrs
Low Fuel Lamp (LFL) Indicator 673 km VS. 687 km
Distance drove after LFL 32 km VS. 16 km
Tire Pressure 35 PSI VS. 36 PSI
Start mileage 109,672 km VS. End Mileage 110,375 km
Fuel nozzle auto cut off: 48.4 L VS. 46.18 L
Topped up to 50.002 L (13.21 US Gal) VS. 48 L (12.68 US Gal)

I will let the ECU settle and adapt to the improved eco driving style to gauge the performance plateau. Looks like the vehicle can go further based on the refuelling data, it took less fuel to top to full.

orangehonda
2000rpm
2000rpm
Posts: 33
Joined: Fri Aug 22, 2014 1:13 am

Re: Pacing to 750 km on 1 tank

Post by orangehonda » Sat Jun 13, 2015 11:32 am


jaychen1982
Posts: 4
Joined: Mon Jul 13, 2015 7:16 pm

Re: Pacing to 750 km on 1 tank

Post by jaychen1982 » Sat Jul 25, 2015 8:27 am

Bro, what's yr setup? I'm struggling to get only 400, pls help.

orangehonda
2000rpm
2000rpm
Posts: 33
Joined: Fri Aug 22, 2014 1:13 am

Re: Pacing to 750 km on 1 tank

Post by orangehonda » Wed Jul 29, 2015 11:13 pm

My ride is stock. No aftermarket additions
Try these first.
1.Clean the MAF sensor first with contact cleaner.
http://www.8thcivic.com/forums/articles ... g-r18.html


rational for this is to allow the car computer to measure the air flow into the engine accurately so that the fuel injected will be the correct amount.

2. Maintain tire pressure at 36 PSI
Last edited by orangehonda on Thu Jul 30, 2015 12:51 am, edited 1 time in total.

orangehonda
2000rpm
2000rpm
Posts: 33
Joined: Fri Aug 22, 2014 1:13 am

Re: Pacing to 750 km on 1 tank

Post by orangehonda » Thu Jul 30, 2015 12:42 am

Do the above first. Its the easiest and don't need to downtime your vehicle.

If above does not improve your mileage, try these

1. Check for head gasket burnt by doing a vacuum test. It is quite easy to do.
Head gasket leaks do show in poor mileage and can melt the pistons.
I have had head gasket leaks before. One of the signs is loosing radiator water every few days and need topping up frequently.

This is the video for the Stream for vacuum test on my own vehicle.
https://www.youtube.com/watch?v=hf_bVvwj0D0

Interpreting results
http://members.iinet.net.au/~phatcarste ... MALLER.jpg

2. If vacuum test passes, this next step would require a mechanic to adjust the adjust the tappet clearances of your valves and rockers.

IMO, don't need to clean the throttle body for now. Some workshops would ask to do that. I feel it is a waste of money and you need to reset the car computer later. That's my opinion btw. Good luck.

orangehonda
2000rpm
2000rpm
Posts: 33
Joined: Fri Aug 22, 2014 1:13 am

Re: Pacing to 750 km on 1 tank

Post by orangehonda » Thu Sep 24, 2015 10:24 am

Challenge complete!

753 km on one tank

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