JavaScript is disabled in your web browser or browser is too old to support JavaScript. Today almost all web pages contain JavaScript, a scripting programming language that runs on visitor's web browser. It makes web pages functional for specific purposes and if disabled for some reason, the content or the functionality of the web page can be limited or unavailable.

Tuesday, June 24, 2025

High sulphur diesel endangering luxury vehicles

by

Darren Bahaw
2028 days ago
20191030

dar­ren.ba­haw@guardian.co.tt

Diesel fu­el pow­ers the bulk of this coun­try’s com­mer­cial trans­porta­tion in­dus­try, both on land and at sea, but the high sul­phur con­tent is said to be de­stroy­ing the en­gines of mod­ern ve­hi­cles.

A Busi­ness Guardian in­ves­ti­ga­tion has linked the high sul­phur con­tent in the fu­el to the cat­a­stroph­ic fail­ure of en­gines and high main­te­nance costs. This as the T&T Bu­reau of Stan­dards (TTBS) re­ports that it is de­vel­op­ing new stan­dards for diesel and gaso­line fu­els.

One ma­jor lo­cal car deal­er ad­mit­ted his com­pa­ny had been hit with mul­ti-mil­lion dol­lar los­es as it had to change hun­dreds of en­gines, fu­el pumps, in­jec­tors and tur­bocharg­ers all de­stroyed by low-qual­i­ty diesel fu­el.

The domi­no ef­fect left new ve­hi­cle deal­er­ships over­whelmed as cus­tomers with diesel ve­hi­cles crowd­ed their ser­vice bays push­ing out oth­er cus­tomers.

Some cus­tomers had to fork out con­sid­er­able sums to re­pair their ve­hi­cles while oth­ers were cov­ered by the man­u­fac­tur­er’s war­ran­ty.

Many peo­ple chose to pur­chase diesel fu­el-pow­ered ve­hi­cles be­cause it is cheap­er fu­el and cov­ers more mileage than gaso­line.

Now, the re­sale val­ue of their in­vest­ments have de­clined dras­ti­cal­ly and some deal­er­ships are even re­fus­ing to ac­cept those ve­hi­cles as part of trade-ins for oth­er ve­hi­cles.

Own­ers of high-end lux­u­ry ve­hi­cles are among those af­fect­ed.

One new car deal­er, who spoke on the con­di­tion of anonymi­ty, said his com­pa­ny had to bring in for­eign ex­perts to as­sist and point­ed to a pile of dis­card­ed en­gines in the garage

Guardian Me­dia reached out to the ma­jor new car deal­ers seek­ing com­ment and they chose to re­spond through the Au­to­mo­tive Deal­ers As­so­ci­a­tion of T&T.

Pres­i­dent of the as­so­ci­a­tion Jerome Bor­de in a state­ment con­firmed that the high sul­phur con­tent in diesel fu­el was dam­ag­ing the en­gines of ve­hi­cles.

(See box)

Apart from ir­repara­ble dam­age to ve­hi­cle en­gines, the rep­u­ta­tion of pre­mi­um ve­hi­cle brands are al­so be­ing com­pro­mised.

Me­chan­ics from sev­er­al lead­ing au­to­mo­bile deal­er­ships, who spoke off the record, as they were not au­tho­rised to speak on be­half of their com­pa­nies, ad­mit the sul­phur in the fu­el grad­u­al­ly eats away at the en­gine’s com­po­nents.

The so­lu­tion, me­chan­ics say, is to use ul­tra-low sul­phur diesel (ULSD) which would like­ly cost sig­nif­i­cant­ly high­er than pre­mi­um gaso­line—which now fetch­es $5.75 a litre at the pump.

Al­ter­na­tive­ly, fu­el im­porters can in­crease the vol­ume of bio-fu­el mixed with high sul­phur diesel, which would low­er the sul­phur con­tent and al­so pro­duce clean­er emis­sions.

An­oth­er me­chan­ic de­scribed the ef­fects of lo­cal diesel on mod­ern en­gines as “breath­ing in sand.”

An al­most $3 bil­lion ULSD plant that was be­ing con­struct­ed by the now-de­funct Petrotrin to pro­duce ULSD re­mains in­op­er­a­ble be­cause of struc­tur­al de­fects and even if the re­fin­ery re­opens will need sig­nif­i­cant in­vest­ments to bring it up to scratch.

The new op­er­a­tors of the re­fin­ery, Pa­tri­ot­ic En­er­gies and Tech­nolo­gies Com­pa­ny Ltd—a com­pa­ny whol­ly-owned by the Oil­fields Work­ers’ Trade Union— would have to kick-start the plant to pro­duce and sell diesel and oth­er fu­els on in­ter­na­tion­al and re­gion­al mar­kets.

In re­sponse to ques­tions from Guardian Me­dia, Paria Fu­el Trad­ing Com­pa­ny, the coun­try’s au­tho­rised fu­el im­porter, said the fu­els it im­ports, in­clud­ing diesel, are in keep­ing with the TTBS spec­i­fi­ca­tion for mo­tor ve­hi­cles.

But car man­u­fac­tur­ers have long rec­om­mend­ed ul­tra-low sul­phur diesel fu­el for mod­ern en­gines.

Ve­hi­cle own­ers who spoke to Guardian Me­dia ques­tioned why they were nev­er told the lo­cal diesel sup­ply was not com­pat­i­ble with their ve­hi­cles and whether the com­pa­nies kept it a se­cret.

One such own­er, Dr Rollin Bertrand, who pur­chased a high-end ve­hi­cle from the lo­cal deal­er­ship South­ern Sales re­count­ed his ex­pe­ri­ence af­ter his en­gine failed.

The for­mer Trinidad Ce­ment Ltd CEO said his me­chan­ic told him there was a “mis­match be­tween the fu­el and the en­gine” of his ve­hi­cle.

He said he be­gan to ex­pe­ri­ence prob­lems start­ing his ve­hi­cle and a di­ag­no­sis re­vealed the com­pres­sion of the en­gine had “fall­en away” be­cause of the ef­fects of the high sul­phur con­tent of the fu­el.

Bertrand said he even­tu­al­ly had to make con­tact with the ve­hi­cle’s for­eign man­u­fac­tur­er af­ter ne­go­ti­at­ing with the lo­cal deal­er­ship and was able to get a “sig­nif­i­cant dis­count” on a com­plete­ly new en­gine which could han­dle the high sul­phur con­tent.

Bertrand sur­mised that the lo­cal car deal­ers be­gan im­port­ing ve­hi­cles which re­quired low sul­phur diesel as the new Ul­tra Low Diesel Plant was about to be com­mis­sioned by Petrotrin in 2009.

“It is a re­al scan­dal. These ve­hi­cles are shut­ting down all over the place. I had to re­sort to spray­ing Bay­gon in­to the in­take of the en­gine for it to start.

“Imag­ine a mil­lion-dol­lar ve­hi­cle start­ing like an old truck,” he said.

Bertrand said he was told by the lo­cal deal­er­ship that be­fore the diesel ve­hi­cles were sold on the lo­cal mar­ket, agents for the for­eign com­pa­ny took a lo­cal sam­ple of the fu­el for test­ing and ap­proved it.

Ri­ad Ali, a man­ag­er at Lifestyle Mo­tors, ad­mit­ted that the lo­cal diesel had af­fect­ed the per­for­mance of some of the ve­hi­cles.

He sug­gest­ed short­er pe­ri­ods for ser­vic­ing as a counter-mea­sure.

An­oth­er ex­ec­u­tive at a Port-of-Spain-based car deal­er­ship sug­gest­ed that Paria im­port ul­tra-low diesel fu­el and give cus­tomers the choice, just as in Pre­mi­um and Su­per gaso­line.

He too said the lo­cal diesel fu­el had been test­ed be­fore a de­ci­sion was tak­en to im­port the high-end ve­hi­cles but claimed that it de­grad­ed over time.

Paria Fu­el says it has re­ceived re­quests to bring in ul­tra-low sul­phur diesel fu­el from cus­tomers who own lux­u­ry Eu­ro­pean ve­hi­cles but de­clined be­cause the de­mand was too low.

The com­pa­ny said it was aware that Clax­ton Bay com­pa­ny, AM Mar­ket­ing, was im­port­ing ul­tra-low sul­phur diesel and re­tail­ing it at $2,812 a bar­rel (200 litres). That works out to $14 a litre com­pared to $3.41 a litre for diesel sold at the pump.

AM Mar­ket­ing did not re­spond to a re­quest for an in­ter­view but Guardian Me­dia con­firmed their sale of ul­tra-low sul­phur diesel fu­el.

Paria Fu­el says it in­tends to im­port ul­tra-low sul­phur diesel dur­ing the sec­ond half of 2020 and the trad­ing price will be de­ter­mined by the mar­ket price at that time.

Be­fore No­vem­ber 2018, State-owned Petrotrin pro­duced all fu­el for the lo­cal mar­ket.

In the last few months be­fore its clo­sure, the diesel fu­el it pro­duced fell way be­low the ac­cept­able lim­its of sul­phur set by the TTBS.

Con­fi­den­tial da­ta for that pe­ri­od from Na­tion­al Pe­tro­le­um showed the sul­phur con­tent in­creased by al­most 200 per cent.

Da­ta seen by Guardian Me­dia showed the sul­phur con­tent in diesel fu­el sky-rock­et­ing to over 2,800 parts per mil­lion (ppm) in some in­stances.

Since Paria Fu­el came on stream there has been an im­prove­ment in the qual­i­ty of diesel fu­el im­port­ed. Da­ta from Na­tion­al Pe­tro­le­um show the im­port­ed diesel fu­el has close to 900 ppm.

The TTBS says the com­pul­so­ry stan­dard for diesel fu­el is 1,000 ppm. The stan­dard for gaso­line is 500 ppm.

Lo­cal car deal­ers told Guardian Me­dia that the rec­om­mend­ed diesel sul­phur con­tent for mod­ern ve­hi­cles was be­tween 10 to 500 ppm.

The TTBS says its cur­rent stan­dard is­sued in 2011 was “now out­dat­ed” and the or­gan­i­sa­tion “ini­ti­at­ed the re­vi­sion process in June 2019 to align the chem­i­cal re­quire­ments for diesel fu­el to in­ter­na­tion­al re­quire­ments aimed at:-

1) en­sur­ing ac­cept­able prod­uct qual­i­ty and

2) pro­tect­ing the en­vi­ron­ment in ac­cor­dance with TTBS’ le­gal man­date (Chap­ter 82:03)”

The TTBS stat­ed that as part of its en­force­ment regime for this com­pul­so­ry stan­dard, it would have con­duct­ed analy­ses of Cer­tifi­cates of Qual­i­ty (CoQ) pro­duced by the now-de­funct Petrotrin and for diesel im­port­ed by Paria Fu­el.

“From the analy­ses of the Co­Qs, it is ev­i­dent that there has been an im­prove­ment in the qual­i­ty of diesel im­port­ed in­to the coun­try. Some ar­eas of im­prove­ment in­clude re­duced sul­phur con­tent and to­tal aro­mat­ic hy­dro­car­bons,” the or­gan­i­sa­tion said.

“In ad­di­tion, we are cur­rent­ly de­vel­op­ing a more rig­or­ous en­force­ment pro­ce­dure which will in­clude test­ing by in­de­pen­dent test lab­o­ra­to­ries to en­sure that all fu­el (whether im­port­ed or lo­cal­ly man­u­fac­tured) con­form to the re­quire­ments of the rel­e­vant na­tion­al com­pul­so­ry stan­dard.”

Asked specif­i­cal­ly whether there have been any com­plaints from lo­cal car deal­er­ships re­gard­ing the qual­i­ty of diesel fu­el used by high-end ve­hi­cles such as Porsche, Au­di, Volk­swa­gen BMW, Mer­cedes Benz, Land Rover, the TTBS said it has re­ceived re­quests from key stake­hold­ers in the lo­cal car in­dus­try to re­vise the na­tion­al fu­el stan­dards, as re­cent as De­cem­ber 2018.

“TTBS has made a de­ci­sion to pro­ceed with this re­quest to com­mence the re­vi­sion of the na­tion­al com­pul­so­ry stan­dard for diesel, as well as gaso­line, in col­lab­o­ra­tion with oth­er key stake­hold­ers with reg­u­la­to­ry over­sight for the en­er­gy sec­tor. The re­vi­sion process for the diesel and gaso­line stan­dards of­fi­cial­ly com­menced in June 2019.”

But me­chan­ics say the shift to more suit­able diesel fu­el needs to be done much soon­er to pre­vent fur­ther degra­da­tion of en­gines.

Many of the ve­hi­cles man­u­fac­tured in Eu­rope, UK and now Japan must meet in­ter­na­tion­al stan­dards re­gard­ing low emis­sions to pro­tect the en­vi­ron­ment and man­u­fac­tur­ers rec­om­mend fu­el with low sul­phur con­tent.

Asked whether there has been any re­quest to im­prove the stan­dards of diesel fu­el to meet the re­quire­ments of Eu­ro-spec fu­el in keep­ing with the man­u­fac­tur­ers’ rec­om­men­da­tion for the type of fu­el to be used in high-end lux­u­ry ve­hi­cles, the Ma­coya-based reg­u­la­to­ry body said it will use in­ter­na­tion­al bench­marks to in­form the re­vi­sion of the na­tion­al stan­dard for diesel fu­el.

“We have looked at the Eu­ro-6 spec­i­fi­ca­tion which is 10 ppm for sul­phur and ASTM (Amer­i­can So­ci­ety for Test­ing and Ma­te­ri­als) In­ter­na­tion­al Stan­dard which spec­i­fies 500 ppm for Low Sul­phur Diesel and 15 ppm for Ul­tra-Low Sul­phur Diesel.

“The stan­dard­i­s­a­tion process re­quires con­sul­ta­tion with in­dus­try stake­hold­ers to en­sure feed­back is re­ceived on all pro­posed com­pul­so­ry re­quire­ments,” the TTBS said.

State­ment for Au­to­mo­tive Deal­ers As­so­ci­a­tion of Trinidad and To­ba­go

“ADATT has for many years raised con­cerns with the high sul­phur con­tent in the diesel sup­plied to the lo­cal mar­ket.

All the lo­cal agen­cies in the sup­ply chain are aware of the po­ten­tial dam­age high sul­phur can cause to the en­gines run­ning on diesel.

In most cas­es the con­tent is twice the max­i­mum tol­er­ance lev­el.

The re­sult has been an enor­mous cost to deal­ers who out of good­will have un­der­tak­en to re­pair at no cost to the con­sumer.

diesel fuelpollutioncars and trucksultra low sulphurautomotive industrytransportation


Related articles

Sponsored

Weather

PORT OF SPAIN WEATHER

Sponsored