sulphur content vs oil change

[gt4]

I am hoping for a little enlightenment, In the service schedule for a MY11 Defender it states(this is the one the dealer uses)

"Important - Oil change Diesel engines
.If the vehicle is operated on fuel with a moderate sulphur content (0.3-0.7) the oil change interval must not exceed 10,000 k's."

In the handbook that came with the vehicle it states 20,000 k's for australia,yet my dealer wants it in for oil changes every 10,000 k's.
I dont necessarily want to run the vehicle for 20,000 k's as that would be pushing it i think, but am interested to know what the 0.3-0.7 relates to Australian delivered diesel.

[Naks]

but am interested to know what the 0.3-0.7 relates to Australian delivered diesel.


If I have it correctly, this would translate to 3000-7000ppm sulphur content.

[isuzurover]

The Australian fuel quality standard stipulates <10 ppm sulphur.

You don't need to worry.

[Defender Mike]

When I drove a trawler in the gulf of carpentaria back in the early 80's we had diesel fuel comming in to karumba from Singapore . It was black and looked more like bunker oil. It had a high sulphur content and the exhaust gas contained sulphur dioxide which very quickly burnt out the exhaust valves in our 2 stroke 871 (screaming) GM's. A painful job to fix inside a steel hull in 50 deg heat.
Mike

[mick88]

A couple of days ago I was about to burn off some prunings and put a small amount of unleaded petrol, maybe 1/2 a cup on the fire to get it moving. The black smoke that resulted from it was unreal, you would think I had poured a litre of sump oil on there!


Cheers, Mick

[Bigbjorn]

When I drove a trawler in the gulf of carpentaria back in the early 80's we had diesel fuel comming in to karumba from Singapore . It was black and looked more like bunker oil. It had a high sulphur content and the exhaust gas contained sulphur dioxide which very quickly burnt out the exhaust valves in our 2 stroke 871 (screaming) GM's. A painful job to fix inside a steel hull in 50 deg heat.
Mike

The Detroit Diesel Operators Handbook had specific instructions to avoid high sulphur fuels. Amongst other things these fuels caused piston ring corrosion. The White Farm Equipment Operators Manual had similar warnings regarding their own 6-150 engine. Neither company would recognise warranty claims for engine failures caused by use of proscribed fuels.

WA at the time (late 70's) had high sulphur fuels sourced from Indonesia. Failures and rejection of claims caused a lot of animosity between owners and the engine makers. Stiff bikkie was their attitude. Take it up with the fuel company and in future read your Operators Manual.

[Defender Mike]

The Detroit Diesel Operators Handbook had specific instructions to avoid high sulphur fuels. Amongst other things these fuels caused piston ring corrosion. The White Farm Equipment Operators Manual had similar warnings regarding their own 6-150 engine. Neither company would recognise warranty claims for engine failures caused by use of proscribed fuels.

WA at the time (late 70's) had high sulphur fuels sourced from Indonesia. Failures and rejection of claims caused a lot of animosity between owners and the engine makers. Stiff bikkie was their attitude. Take it up with the fuel company and in future read your Operators Manual.

It's a bit late now but I wish I had known that way back then. When your running on fumes and fueling up at sea you don't think about it that much. Mike

[jakeslouw]

If you have suspect suppliers that dump high sulfur diesel or paraffin into their supply, as well as dusty conditions, then stick to 10,000 km or less.

It's false economy to take chances with an engine rebuild for the price of 5L of engine oil.

Just IMHO of course. :)

[DEFENDERZOOK]

whats added to alpine diesel......?
and what result will this have.....?
does anyone know.....?

[isuzurover]

whats added to alpine diesel......?
and what result will this have.....?
does anyone know.....?

Alpine diesel doesn't necessarily have anything added. It does have the large (waxy) molecules removed, which would solidify and block your filter at low temperature.

It may also have more lighter fractions as a substitute.

It cannot contain any more than 10 ppm sulphur.