Hilux 4x4 Forum

Please advise what the difference is between the two diesels and witch is optimal for kzte motor.

Thanks

That number indicates the level of impurities (sulphur), in parts per million, in the diesel. The cleaner the diesel, the better for your truck. You should try to use 50 ppm as far as possible, especially with the newer diesel engines.

50ppm is cleaner diesel. Use it, although it might be a little more expensive than 500ppm, it also gives better performance and easier on the filters

50ppm as far as possible as Jarus indicates. But with a lower sulphur content there's an ongoing debate about lower lubrication also, hence you'd maybe hear of guys mixing diesel with 2 stroke oil (1:200 ratio). It never stops hey?

Urban legend has it, that the sulphur accumulate in the oil, which make the oil thicker almost like a grease, if you don’t change the oil regularly. The accumulation is worst then you drive short distances and switch the engine off, but if you drive long distances like trucks it doesn’t make a big difference, that’s why most trucks use 500ppm diesel. But not willing to test the urban legend on my D4D, so I’ll stick to 50ppm as much as possible.

My 3.0 d4d only run on 500ppm for 186000km's. Only 2 tanks of 150L was 50ppm, no problems to date. But will try to fill up with 50ppm as much as possible from now on.

50ppm much better. The oil will get contaminated with sulphur hence the diesel engines 7000km oil change service.

As above sulphur shortens the serice intervals primarily. Vito's usually 23000km service intervals on 50 with anything more they advice 7500km intervals....

i use 50ppm and on every 4th or 5th tank i use 500ppm.
because of the lubrication issue mentioned or because i'm out and the garage doesnt have 50ppm

Gentlemen thank you very much!
50ppm it is then

thanks very interesting! will have to make a sure all the work bakkies use the 50ppm

just my 2cw the kzte engine is an "older technology engine" ie mechanical pump, non common rail, lower injector pressure. As such the sulphur content of the diesel doesnt make much difference apart from oil changes, but that being said it is an older technology diesel so should be serviced more regularly almost like the cruiser 1HZ engine that gets an oil change every 5000kms the na full service (oil and filter change every 10000km). the higher your injector pressure, the smaller the fuel droplets and thus the mre effective/cleaner the burn. older engines tend to create more soot than newer engines and this can contaminate the oil as well

Robert, that's 4cw!

was pondering the same

OK, thanks moderator, now my previous post doesn't make sense anymore!

sorry about the long windedness I did my final year thesis topic for mech engineering was diesel lubricity (smeering in AFR) and quality.

That wasn't it - your post appeared twice! Hence 4cw!

oxydog wrote:OK, thanks moderator

m2cw)

I have try and read a bit more on this issue and found that people have been experience drop in fuel economy when using 50ppm.What I also understands is if you do 5k oil changes than the 50ppm is not really better for your engine ,it is actually better for the environment.
Has anybody experience worse fuel economy when changed form 500 to 50ppm?

Up to Euro 3 spec engines can run on 500ppm , euro 4 spec engins will have a problem with 500ppm, if its 500ppm. The pdf filters will block up with higher sulfer diesel, but I believe our 500ppm is only 120ppm, so not so serious issue..

Johan Kriel wrote:Up to Euro 3 spec engines can run on 500ppm , euro 4 spec engins will have a problem with 500ppm, if its 500ppm. The pdf filters will block up with higher sulfer diesel, but I believe our 500ppm is only 120ppm, so not so serious issue..

Hi Johan. What are you using and did you notice any difference between the 2

So what does the other KZ owners prefer?

Robert,

The Kz-TE has an electronic fuel pump.

Kz = engine model
T = Turbo
E = Electronic fuel pump

Thabogrobler wrote:Robert,

The Kz-TE has an electronic fuel pump.

Kz = engine model
T = Turbo
E = Electronic fuel pump

Thabo,wat gebruik jy?

I bought my truck on 64000km - it was a farm bakkie, so presumedly it used farm fuel, which was 500 ppm.

Now standing over 371000 km(unopened engine) and 98% of fuel used was 500 ppm.

Now, is 500 ppm really that bad?

Oh, and the few tanks of 50 ppm used, then consumption was worse!

From what I've heard either is fine as long as the vehicle doesn't have a particulate filter.

Its only since 2006 that the sulphur content in diesel locally was set, I'm sure prior to that the levels could have been as high as 3000ppm

My cousin did use 50ppm in his 07 Polo TDi but reverted to 500ppm because it offers better fuel consumption and power, just keeps oil changes at every 5000km, which should be the norm on a car with more than 100k on the clocks

Currently in Europe the 5ppm is the standard and "zero" sulphur diesel is also available.

Glad to hear.Will also be sticking with 500ppm.
Sjoe Thabo.Do you still have the original head?

Ek dink hier kom George se EINTLIKE vrees nou deur: daai berugte KZ head...
Ek ken nie die stats nie, maar George, ek's redelik seker dat vir elke gekraakte KZ head daar buite is daar hordes wat nog fine is. Die goed is maar soos enige kar - ry hom hard dan trek jy hom vinniger deur... My 2c.
My KZ staan nou op 226k, oorspronklike injectors, geen rook, net so nou en dan effe wit rook met koue start in die diepste winter, seker meer "flooding", net so een puff, dan's hy weer silwer skoon.
Ek moet ook bysê dat ek nog op die oorspronklike clutch is - al wat dit beteken is dat ek 95% teer ry, en nie deur die ratte jaag nie - m.a.w. Ek ry beskaafd... En touch wood, moes nog net waterpomp vervang.
Ek gooi hoofsaaklik 50ppm, maar gee nie om as ek sien die pomp sê 500ppm nie - gaan soek nie opsetlik na een of die ander. Maar ja, waneer ek wel oplet voel dit of ek meer myle uit BP se vuil diesel kry.
Toe ek op die forum begin lees van gekraakte heads het ek vir dae lank met een oog op die temp gauge gery... Toe esel ek "what will be, will be". Hou maar net aan decent ry. Wees versigtig, maar moenie soveel worry dat jy nie daai fantastiese masjien geniet nie!

Oupa Stig wrote:Ek dink hier kom George se EINTLIKE vrees nou deur: daai berugte KZ head...
Ek ken nie die stats nie, maar George, ek's redelik seker dat vir elke gekraakte KZ head daar buite is daar hordes wat nog fine is. Die goed is maar soos enige kar - ry hom hard dan trek jy hom vinniger deur... My 2c.
My KZ staan nou op 226k, oorspronklike injectors, geen rook, net so nou en dan effe wit rook met koue start in die diepste winter, seker meer "flooding", net so een puff, dan's hy weer silwer skoon.
Ek moet ook bysê dat ek nog op die oorspronklike clutch is - al wat dit beteken is dat ek 95% teer ry, en nie deur die ratte jaag nie - m.a.w. Ek ry beskaafd... En touch wood, moes nog net waterpomp vervang.
Ek gooi hoofsaaklik 50ppm, maar gee nie om as ek sien die pomp sê 500ppm nie - gaan soek nie opsetlik na een of die ander. Maar ja, waneer ek wel oplet voel dit of ek meer myle uit BP se vuil diesel kry.
Toe ek op die forum begin lees van gekraakte heads het ek vir dae lank met een oog op die temp gauge gery... Toe esel ek "what will be, will be". Hou maar net aan decent ry. Wees versigtig, maar moenie soveel worry dat jy nie daai fantastiese masjien geniet nie!

Dankie Mickey.Moet se ek geniet die KZ baie.Daai motor pas by my bestuurstyl.

Askuus manne, ek is nuut hier en as ek mag sê met verginning van die hoofde van die forum.

Toe die KZTE uitgekom het was die enigste 50 ppm diesel daai een van Sasol. Volksvreende goed wat nie skuim nie.

Ek onthou daai tyd het ek die Ranger 2.5 td gery en hy het beter getrek op 500 ppm.

So ek dink die KZTE kan gemaklik op albei ry.

Stem.

500 ppm diesel sal geen sins skadelik wees vir die kzte, wat wel skadelik is vir die kzte engine as hy te swaar werk (trailer sleep etc), dan gaan sy top later.

Ons het net 500ppm diesel gehad tot die jaar , en al daai fensie modele het hier op 500ppm diesel geloop, niemand het eens gevra wanner kry ons 50ppm diesel.

george wrote:Do you still have the original head?

Yep, the same one the Good Lord has issued me at birth!

And the truck is untouched mechanically, sans intercooler and chip!

AND it is my daily driver, making sure I put food on the table, carrying me, crea and equipment all over without any complaints!

Thabogrobler wrote:

george wrote:Do you still have the original head?

Yep, the same one the Good Lord has issued me at birth!

And the truck is untouched mechanically, sans intercooler and chip!

AND it is my daily driver, making sure I put food on the table, carrying me, crea and equipment all over without any complaints!