Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




6415 posts

Uber Geek
+1 received by user: 3038

Subscriber

Topic # 228798 23-Jan-2018 11:14
One person supports this post
Send private message quote this post

Can one of the expert mechanics here explain to me what this is about? Why do slightly elevated sulphur levels in petrol stuff fuel gauges? What is the mechanism at work? This is new to me.

 

 





I reject your reality and substitute my own. - Adam Savage
 


Create new topic
1338 posts

Uber Geek
+1 received by user: 492

Subscriber

  Reply # 1945247 23-Jan-2018 11:20
Send private message quote this post

I also wondered - makes no sense to me. Do cars these days still use floats to measure fuel or do they use an ultrasonic pickup? 

 

 


11676 posts

Uber Geek
+1 received by user: 5326

Trusted

  Reply # 1945249 23-Jan-2018 11:23
One person supports this post
Send private message quote this post

The little Elf inside the tank gets ill from the smell of sulphur and gives up. tongue-out





Mike
Retired IT Manager. 
The views stated in my posts are my personal views and not that of any other organisation.

 

 It's our only home, lets clean it up then...

 

Take My Advice, Pull Down Your Pants And Slide On The Ice!

 

 


 
 
 
 


1338 posts

Uber Geek
+1 received by user: 492

Subscriber

  Reply # 1945250 23-Jan-2018 11:23
Send private message quote this post

Has happened before!

 

http://www.nbcnews.com/id/5086367/ns/business-autos/t/drivers-hit-bygauge-gumming-gasoline/

 

The sulphur corrodes the silver on the float pickup.

 

 


1338 posts

Uber Geek
+1 received by user: 492

Subscriber

  Reply # 1945251 23-Jan-2018 11:27
Send private message quote this post

MikeB4:

 

The little Elf inside the tank gets ill from the smell of sulphur and gives up. tongue-out

 

 

Heh! Remember the guy in the movie 'Waterworld' that lived in the bowels of the oil tanker?

 

 


71 posts

Master Geek
+1 received by user: 16


  Reply # 1945270 23-Jan-2018 11:44
One person supports this post
Send private message quote this post

Hi,

 

The current regulations allow 50 ppm of total sulphur in petrol, reducing to 10 ppm in July this year. The petrol was below the 50 ppm total sulphur, but some of the sulphur was in the active form. Active sulphur consists of elemental sulphur, hydrogen sulphide, and mercaptans, and arises from some of the refining processes. It's supposed to be removed at the refinery, but the NZ petrol specifications no longer have a test for active sulphur ( it was often either the "doctor" test ( dark precipitate with lead salts ), or Silver Corrosion test ( 50C for 4 hours - followed by tarnish comparison with a coloured silver standard ).

 

Why it's important is because fuel level sensors are effectively a rheostat containing silver or silver-palladium coated wires and wiper contacts, and as the sensor float moves an electrical connection wipes across the rheostat wires varying the resistance. Active sulphur reacts with the silver, and the sulfide affects the reading of the unit. 

 

As noted above, it's quite common, and countries usually reinstate one of the active sulphur tests into their specifications. Given NZ is going to low total sulphur, it's quite likely the test will be reinstated, as it only takes a few ppm of active sulphur to screw up the sensor calibration.


97 posts

Master Geek
+1 received by user: 15


  Reply # 1945373 23-Jan-2018 13:40
Send private message quote this post

This has effected my Mazda6 badly .. ran out of gas 3 times in December before I worked out the gauge was reading wrong (almost half a tank showing when ran out). Only ever used the same Z station as its on my way home. Mechanic advised me he had seen 3 Mazda6 in that week alone with the issue and to ignore the gauge and use trip meter as the cost to replace/repair is far too extreme but my wife has been using the car more lately and I doubt she will remember to ignore the gauge.

 

I know that Z have issued a warning for Holdens on their website .. what about the rest of us ?? -   https://z.co.nz/about-z/news/general-news/questions-and-answers-on-fuel-supplied-potentially-causing-fuel-gauge-accuracy-issue/

 

I wonder if there is any way to get the fuel company to rectify the issue on my Mazda without me having to pay the ~$600 1st and then making a small claims ?


1338 posts

Uber Geek
+1 received by user: 492

Subscriber

  Reply # 1945414 23-Jan-2018 14:17
Send private message quote this post

GoranZ:

 

This has effected my Mazda6 badly .. ran out of gas 3 times in December before I worked out the gauge was reading wrong (almost half a tank showing when ran out). Only ever used the same Z station as its on my way home. Mechanic advised me he had seen 3 Mazda6 in that week alone with the issue and to ignore the gauge and use trip meter as the cost to replace/repair is far too extreme but my wife has been using the car more lately and I doubt she will remember to ignore the gauge.

 

I know that Z have issued a warning for Holdens on their website .. what about the rest of us ?? -   https://z.co.nz/about-z/news/general-news/questions-and-answers-on-fuel-supplied-potentially-causing-fuel-gauge-accuracy-issue/

 

I wonder if there is any way to get the fuel company to rectify the issue on my Mazda without me having to pay the ~$600 1st and then making a small claims ?

 

 

Surely the fuel companies are liable for the repair?

 

The fuel came from Marsden Point so Z, Caltex, BP and Mobil will all be affected.

 

 


2501 posts

Uber Geek
+1 received by user: 578


  Reply # 1945418 23-Jan-2018 14:22
Send private message quote this post

kryptonjohn:

 

GoranZ:

 

This has effected my Mazda6 badly .. ran out of gas 3 times in December before I worked out the gauge was reading wrong (almost half a tank showing when ran out). Only ever used the same Z station as its on my way home. Mechanic advised me he had seen 3 Mazda6 in that week alone with the issue and to ignore the gauge and use trip meter as the cost to replace/repair is far too extreme but my wife has been using the car more lately and I doubt she will remember to ignore the gauge.

 

I know that Z have issued a warning for Holdens on their website .. what about the rest of us ?? -   https://z.co.nz/about-z/news/general-news/questions-and-answers-on-fuel-supplied-potentially-causing-fuel-gauge-accuracy-issue/

 

I wonder if there is any way to get the fuel company to rectify the issue on my Mazda without me having to pay the ~$600 1st and then making a small claims ?

 

 

Surely the fuel companies are liable for the repair?

 

The fuel came from Marsden Point so Z, Caltex, BP and Mobil will all be affected.

 

 

 

 

https://www.radionz.co.nz/news/national/348675/fuel-companies-to-pay-out-over-sulphuric-petrol


1338 posts

Uber Geek
+1 received by user: 492

Subscriber

  Reply # 1945421 23-Jan-2018 14:27
Send private message quote this post

vexxxboy:

 

kryptonjohn:

 

GoranZ:

 

This has effected my Mazda6 badly .. ran out of gas 3 times in December before I worked out the gauge was reading wrong (almost half a tank showing when ran out). Only ever used the same Z station as its on my way home. Mechanic advised me he had seen 3 Mazda6 in that week alone with the issue and to ignore the gauge and use trip meter as the cost to replace/repair is far too extreme but my wife has been using the car more lately and I doubt she will remember to ignore the gauge.

 

I know that Z have issued a warning for Holdens on their website .. what about the rest of us ?? -   https://z.co.nz/about-z/news/general-news/questions-and-answers-on-fuel-supplied-potentially-causing-fuel-gauge-accuracy-issue/

 

I wonder if there is any way to get the fuel company to rectify the issue on my Mazda without me having to pay the ~$600 1st and then making a small claims ?

 

 

Surely the fuel companies are liable for the repair?

 

The fuel came from Marsden Point so Z, Caltex, BP and Mobil will all be affected.

 

 

 

 

https://www.radionz.co.nz/news/national/348675/fuel-companies-to-pay-out-over-sulphuric-petrol

 

 

Well at least that's something!

 

What a monumental screw-up though. I sure hope they have checked their AVGAS for the same issue. (most pilots of piston aircraft usually rely on dipping the tank and don't trust fuel gauges anyway)

 

 


Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Intel reimagines data centre storage with new 3D NAND SSDs
Posted 16-Feb-2018 15:21


Ground-breaking business programme begins in Hamilton
Posted 16-Feb-2018 10:18


Government to continue search for first Chief Technology Officer
Posted 12-Feb-2018 20:30


Time to take Appleā€™s iPad Pro seriously
Posted 12-Feb-2018 16:54


New Fujifilm X-A5 brings selfie features to mirrorless camera
Posted 9-Feb-2018 09:12


D-Link ANZ expands connected smart home with new HD Wi-Fi cameras
Posted 9-Feb-2018 09:01


Dragon Professional for Mac V6: Near perfect dictation
Posted 9-Feb-2018 08:26


OPPO announces R11s with claims to be the picture perfect smartphone
Posted 2-Feb-2018 13:28


Vocus Communications wins a place on the TaaS panel
Posted 26-Jan-2018 15:16


SwipedOn raises $1 million capital
Posted 26-Jan-2018 15:15


Slingshot offers unlimited gigabit fibre for under a ton
Posted 25-Jan-2018 13:51


Spark doubles down on wireless broadband
Posted 24-Jan-2018 15:44


New Zealand's IT industry in 2018 and beyond
Posted 22-Jan-2018 12:50


Introducing your new workplace headache: Gen Z
Posted 22-Jan-2018 12:45


Jucy set to introduce electric campervan fleet
Posted 22-Jan-2018 12:41



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.