Patrol Survey quick question

Submitted: Wednesday, Jan 18, 2006 at 21:47
ThreadID: 29854 Views:1599 Replies:4 FollowUps:5
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Hi Everyone,

As you know i am conducting a survey about the ZD30 engine and a few items are standing out, so i need to ask a question regarding the Sulphur in your fuel. It is far too early to draw any conclusion from the limited data but stick with me on this question.

I checked my chart today for world Sulphur levels and i see Australia has reduced the sulphur to 500 PPM(0.05%), WHEN did this happen? And before that what was the level. If my train of thought is on the correct tracks i guess it would have changed sometime mid 2002.

Scott
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Reply By: Member - Trevor R (QLD) - Wednesday, Jan 18, 2006 at 22:43

Wednesday, Jan 18, 2006 at 22:43
Scott,

Don't remember the timing of the change, but I'm sure it come down from 5000ppm. At the time BP were replacing seals in fuel pumps at their expense cause of the lower sulphur content.
Sorry I can't be more help.

Trevor.
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Follow Up By: scottcamp - Wednesday, Jan 18, 2006 at 22:59

Wednesday, Jan 18, 2006 at 22:59
Hi Trevor,
Yes you are correct the seals would need replace on most mid 90's and older pumps. The seals on newer cars(>94) are made from FKM(Viton) and ok with low sulphur. But older Fuel systems have seals made of nitrile rubber also known as NBR or buna-n.

But a danger of high sulphur is the devastating effect on oil, i will go into more detail later but anything over 500ppm is classed as needing special attention to the TBN of the oil or more regular oil changes. There are rules of thumb which we use but i do not want to go into too much detail until we have enough info from the survey(Trolls can ruin the results).
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Reply By: Muzzgit (WA) - Thursday, Jan 19, 2006 at 01:03

Thursday, Jan 19, 2006 at 01:03
I think I see where your'e going with this, but I think you will find that the ZD30 was made for the european market which has had low sulphur fuel for a while now.

Cheers,

Muzz
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Follow Up By: scottcamp - Thursday, Jan 19, 2006 at 01:41

Thursday, Jan 19, 2006 at 01:41
Exactly my point,

You never had low sulphur fuel when the early models were running about. High sulphur fuel is death to oil, there are two ways to fight it. You can regularly change it or you can change to an oil with a high TBN. For example Morocco has 1000ppm and before you go over there you have to put a high TBN oil in your car. If you were not using a high TBN oil or changing it very often then a modern diesel would not last. One thing that stands out from the early failures is the lack of maintenance in the early days, with a high sulphur fuel, you can kiss that engine goodbye. But again until further info come in we cannot say this is the cause.
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Follow Up By: scottcamp - Thursday, Jan 19, 2006 at 02:04

Thursday, Jan 19, 2006 at 02:04
Opps,

that should read Morocco 10,000 ppm (1%)
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Follow Up By: Voxson (Adelaide) - Thursday, Jan 19, 2006 at 07:47

Thursday, Jan 19, 2006 at 07:47
so why didnt it affect prado jackaroo etc etc....
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Follow Up By: scottcamp - Thursday, Jan 19, 2006 at 09:07

Thursday, Jan 19, 2006 at 09:07
Hi Voxson,
Sorry never answered your question, got carried away with the jackaroo. My mate had one, ohh dear what heap that was, so apologies for my rant.

But to answer you question, it looks like all the big names except Nissan have held back there Hi-Tech motors. After reading every post know to man and asking certain questions which were bizzare it all seems to have fallen in place. But as i sit here my wife is giving me dagger stares, so off the computer goes. Will post my theory tomorrow.
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Reply By: scottcamp - Thursday, Jan 19, 2006 at 08:57

Thursday, Jan 19, 2006 at 08:57
Hi Voxton,

Because you still get the old engine in the prado and Jackaroo at that date, i still do belive you get ancient 2V toyota diesel engine that was dropped years ago in Europe. As for the Jackaroo, i think we called that the Vauxhall Frontera, that piece of sh1t was put into retirement years ago, last time i seen one it was sitting on top of 3 cars in the breakers yard.

I have already seen enough in the survey to have a good shot at the problem. I will write a post tomorrow, there was a good reason why the other manufacturers held back.

Scott
AnswerID: 149561

Reply By: rihearn - Friday, Jan 20, 2006 at 02:50

Friday, Jan 20, 2006 at 02:50
The isuzu MU in Australia is a Vauxhall Frontera in the UK. The Jackeroo goes under the Vauxhall badge as a Monterey and under the Isuzu badge as a Trooper.
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