Correct. You need not drive until empty. Even if the tank is half empty you may still fill it up. The only thing you must do is fill full to the brim. That's all.

Preliminaries: find a pump that doesn't shoot like crazy on the lowest setting. The BHP station near my place is notorious for that, every time I try and fill to the brim it will overflow. A flow rate of about 0.3L/s is ideal. Most Petronas and Caltex stations do fine. I will not try Shell. Haven't pumped Mobil and Esso for ages, and I haven't tried Petron yet.

1. Set the flow rate at the lowest setting.

2. Let the pump run until the nozzle trips.

3. Wait about 10 seconds.

4. Very gently squeeze the trigger until it trips again. This technique is easier said than done. Try and fill at a quiet station so you can hear the hose leading to the petrol tank filling up.

5. Repeat steps 3 and 4 until the nozzle trips immediately when you squeeze it. Then your tank should be full to the brim.

You can normally squeeze in about 2 litres between the first and final trip. It doesn't seem much but if your consumption is 10L/100km, that 2 litres can give you an additional 20 km of range. That is important to me because I don't like visiting petrol stations and if I can squeeze a few extra miles while keeping the consumption, I will.

Filling to the brim is crucial otherwise your fill-ups will have a large margin of error, giving you figures which are better than the real one.

Here's how Fuelly works. You start off with a full tank. You note the odo reading or reset your trip meter. Then you drive until the next fill. How is Fuelly going to calculate your consumption? Since you started off with a full tank, the quantity consumed is the difference between the full tank and the current level, which is the amount you can fill in till full. So Fuelly takes that difference and divides it by the distance.

Say you start with a full tank. You drive 300 km, then you fill only 10 litres although a full tank means 30 litres. So Fuelly will think that you drove 300 km on only 10 litres.

Hence you must always fill to the brim, each and every single time.

This post has been edited by lhwj: Aug 8 2012, 02:25 AM

That was only an example with simple numbers for illustration. It was assuming that you had a full tank of 40 litres, consumption 10L/100km so after 300 km your fuel warning light comes on. You're supposed to fill 30 litres to make the tank full again but end up filling only 10L, so Fuelly mistaken calculates your consumption at 3.33L/100km instead of 10L/100km!!

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Added on August 8, 2012, 7:43 amYah I saw it on your Fuelly

120?? Kum fai! I was doing 80-90 only nia

This post has been edited by lhwj: Aug 8 2012, 07:43 AM

He was referring to the vacuum gauge.

Persoga 1.6

Auto, I presume.

This post has been edited by lhwj: Aug 8 2012, 09:23 AM

I straight road also do 80/90 only Maybe I'll try 110 tomorrow morning on the way to LCCT.

I really want to test drive the Getrag tranny. As I have complained many times the Aichi Kikai tranny sucks big time. Horrible feel (yours is not bad though, compared to mine) and horrible ratios. It's my biggest gripe with the car but I'm glad it's fixed in the FLX. Wished I could install the Getrag. You're right, the ratios are just too darn low. Maybe useful for climbing hills or overtaking, but not for cruising.

Oh have you heard of block shifting? 1st-3rd-5th. Skip 2nd and 4th gear. Tried it a few times a long time ago.

This post has been edited by lhwj: Aug 8 2012, 09:31 AM

1. In my experience, 10 litres left when warning light appears. Bear in mind only about 6 litres is actually usable.

2. I don't know. But I feel the point which the warning light comes on is appropriate.

3. In your case, on the third fill up, you didn't fill to the brim, so it's not surprising that the first bar dropped after 10 km. Your sensor is fine as far as I'm concerned.

Me kenot be king lah, I drive manual for less than two years oni. For David definitely xx years already

Meet at the Esso station at Jalan USJ 1/19 at 1:30 pm.

This is one thing I dare not try Sked I damage the tranny if I shift wrongly

That's the whole point of double declutching shifts

Yah I read how some people can drive hundreds of miles to workshop by shifting without clutch after clutch kong...

Then claim warranty and hope they give Getrag tranny

Oh shoot I misread that as downshift from 5th to 4th

I normally don't have problems going from 4th to 5th. But there were a couple of times when my reverse sensor beeped once while shifting from 4th to 5th

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Added on August 8, 2012, 11:29 amGot lah. Oh you mean broken dog clutches and synchros? Can still try and claim lah

This post has been edited by lhwj: Aug 8 2012, 11:29 AM

Summore the throw is so long

FSB and RSB installation is this Saturday, not next.

Your estimation seems correct. For me, my last bar can only last about 30 km of driving. I think that's further than one return trip to Ampang from Puchong (though I've never been to Ampang before )

Don't worry about whether your warning light sudah rosak or not. If it can drop to 1 bar, chances are your fuel guage is working fine

This post has been edited by lhwj: Aug 8 2012, 12:08 PM

You really know how to squeeze every last drop out of the reserve tank

+1

dares, Y U NO put this on front page??!!

Back from LCCT.

It's possible to cruise at 110 km/h with the needle at 15 hg but it often drops to 10 hg 90 km/h is still my preferred cruising speed on the highway.