Eurodiesel is low sulphur, for modern common rail engines.

Diesel is diesel, for older engines basically.

Low sulphur diesel is more expensive because they have to replace the sulpur which acts as the lubricant in your injector pump.

Its not specific to Rusiia, anywhere not in euroweeny land (EU) usually still sell 'proper' diesel, which is actually better for older non common rail engines.

Thanks for our reply.
So if I understand well, if I see , in all Stans, a pomp with "евро дt" (euro diesel)" written on it, I can refill my tank without worrying about quality?

RR.

We've been across Georgia, Armenia, most of the Stans and are now in Irkutsk. We have a Land Cruiser with the 1HDFTE engine (24valve, turbo, intercooler & electronic fuel injection NOT crd). We've been buying the cheapest diesel we can find for nearly 20,000km with no problems. Your 1HZ engine will run on almost anything combustible. Give up worrying and save the money.

I don't know what is 1hdtfe Toy engine and his electronic injection. I have a Land Rover TD5 with electronic regulated injection who needs good quality diesel.
Even the GO pump inside the GO tank needs this quality of diesel and this the reason I'm worrying about that.

RR

Not exactly correct. The sulfur is not the lubricant. Hydrocarbons that are inadvertently removed in the desulfurization process are the pump lubricants. Nowadays pump lubricants are added back to LSD.
Also, it doesn't matter what kind of injection system one has. The only thing that drives the decision to get LSD vs "regular diesel" is one's emission system. If there is a catalyst (oxidation to burn soot and/or reduction to combine NOx with ammonia from urea [AdBlue]) then one should get lowest sulfur diesel when available, the sulfur poisons the catalyst. If the sump has low SAPS oil in it (ACEA Cx) then lowest sulfur is best. ACEA Cx oils are specified for catalyst and DPF (diesel particulate filter) equipped exhaust systems.
A few Euro 4, most Euro 5 and all Euro 6 emission systems require LSD.
I personally love the "bouquet" of high sulfur diesel.

Charlie

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Unimog U500 w/Unicat

As above, euro 5 and 6 engines require low sulphur diesel, or all their low emissions stuff removed, such as DPFs, CATS etc (which then, theoretically make them illegal in their own country).

The modern vehicles you see in these countries don't have the same engines as we in Europe have. If you look in your manual (at least it was in the manual for my Hilux) you will see the spec for engines in Russia, Africa etc is different to Euro spec.

You will get a way with it for a while, but if you persist it will catch up on you. I ran my Hilux in Belarus but only put 2-3 tanks of fuel in.

Thats why I run an old truck for expeditions which, provided you drink enough vodka, you could piss in the fuel tank and it would run!

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1990 Landcruiser H60. Full rebuild completed 2014

Hi, you're lucky to have 2 vehicles for travel.
Unfortunately, I have only my DEF TD5. with a new engine because the old one was out of service due to bad diesel (GO in the cylinders, no more compression, due to injectors out of service after travelling in Iran and Africa without any precautions about GO).
That's the reason I'm worrying
If only I didn't have sold my 300 TDI, never problem with him!
RR.
RR

Landcruiser for travel, Hilux for everyday, but hilux now sold

300tdi was the last landrover engine viable for expedition use.

The mechanic who rebuilt my cruiser has a 300tdi/td5 hybrid. can't remember exactly but I think it's 300tdi running gear and chassis with a TD5 body(they don't rust so bad) which he reckons is the perfect disco. He's done several of these conversions.

Maybe find yourself a 300tdi with rusted body but good running gear and do the swap

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1990 Landcruiser H60. Full rebuild completed 2014

I'm sorry, I don't understand what you are saying. What is "GO"?
What do bad injectors (usually caused by dirt or water in fuel, not high sulfur) have to do with low compression (usually caused by bad rings or valves)?
Could GO be gazoil? Accumulation of fuel is definitely caused by bad injectors unless you have a Euro 5 or 6 engine in which case if it has "in-cylinder regeneration cycles" it could be a symptom of a malfunctioning emission system (extra fuel injected in exhaust cycle to burn soot out of DPF).
If your Defender takes DEF it also probably has a DPF. You DO need to buy the euro diesel unless you delete your emission system which usually also requires software changes. There are many vendors in the States that supply this for US diesel pickups but I had to look hard for someone that can do it for my diesel X5. I don't know if this is available in Europe due to EC wide inspection requirements. Alaska for example does not require emission inspections, most of California (but not all!) counties do require it, also many other states. Canada not so much.
Roro, it is possible that your engine was ruined by the engine's attempt to follow the emissions software. Usually damaged injectors due to dirt/water will produce gradually increasing easily recognized symptoms like missing, loss of power and lots of black and/or white smoke. Which will further instigate the emissions system to do more and more soot "burnouts".
Iran and parts of Africa have some of the highest sulfur diesel in the world - some places 10000 ppm! This will quickly damage/destroy a DEF/DPF type emissions system which will cause various (bad) effects on the engine as "side effects". As I have repetitively written previously, the sulfur does not damage the engine directly (except that it uses up the alkalinity of the lube oil much more quickly and then acidity can cause internal engine damage if the oil is not changed/replaced with high alkalinity oil [ACEA E4/MB228.5]) but it will eventually destroy the emissions system at a rate dependant on sulfur level. Then the "side effects" can destroy the engine.

Charlie

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Unimog U500 w/Unicat

Sorry for my bad english...and thanks for your reply.
Yes GO means Gaz Oil (diesel).
I'm going to try what my mechanic told me:
Bad diesel causes dammage to injectors first.
Then bad injectors fill cylinders with diesel and this causes bad lubrification then bad compressions.
Sorry for these incomplete explications because I don't know english terms for them.
I don't know if my Def TD5 is Euro 5 or 6 , it was made in 2006.
RR.

Dirty or watery diesel does damage injectors but that has absolutely nothing to do with the sulfur content; just the cleanliness. The prevention is to have at least 2 fuel filters with the primary having a water trap, and to check it very soon after a fill-up. Secondly to always try to buy fuel from reputable outlets, not out of drums etc.
A 2006 vehicle is euro 3 or at the most 4, but you said it took DEF (AdBlue) which is usually euro 5 or 6?? If your vehicle does not take DEF or have a DPF (diesel particulate filter) you should be able to burn high sulfur fuel no problem. However, especially in view of your experience, I would fit a primary filter with water trap like a Racor:
215R SERIES HAND PRIMER FUEL FILTER WATER SEPARATORS - Parker

Charlie

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Unimog U500 w/Unicat