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20 May 2018
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What's the recommendations regarding vehicles with common rail diesel engines? I know that they need clean quality diesel, free from water contamination and are more sensitive than older engines to dirty fuel. But, if potentially dodgy diesel is filtered into the vehicle with something like a 'Mr Funnel' and in addition a secondary fuel filter with water trap is fitted, will it be ok to take a common rail diesel vehicle across Central Asia and Siberia. Thoughts?
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20 May 2018
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Quote:
Originally Posted by kiwi1973
What's the recommendations regarding vehicles with common rail diesel engines? I know that they need clean quality diesel, free from water contamination and are more sensitive than older engines to dirty fuel. But, if potentially dodgy diesel is filtered into the vehicle with something like a 'Mr Funnel' and in addition a secondary fuel filter with water trap is fitted, will it be ok to take a common rail diesel vehicle across Central Asia and Siberia. Thoughts?
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Hi Kiwi
There are three things here I would point out
- Yes, common rail diesels are very sensitive to bad fuel. I think you could alleviate some of the risk with a second filter, but there's only so much water they can trap, only so much crap they can filter out. Plus they can do nothing against poor quality fuel or kerosene which (I am no expert on this as I've never owned a common rail diesel, and likely never will) might also damage the pump / injectors.
- I referred to the Toyota KD engine specifically; as well as being common rail, certain examples of this engine suffer from poor piston design and there are many, many examples of this engine cracking pistons. Also there is an issue with injector seals letting unregulated fuel into the cylinders and holing pistons.
- To meet swingeing smog-emissions targets, modern diesels have been castrated by having their compression ratios slashed from ~ 22:1 to ~ 16:1. They therefore lost some of their efficiency (which comes largely from the higher compression ratios which allowed more complete combustion of the molecularly large, energy-rich fuel). Add to this all the extra electronics (of the injection system), the turbos which are sensitive to poor oil quality, and the increasing pressure on keeping diesels out of cities in Europe and personally I wonder what the point of owning one is now. I'd much rather a petrol engine which has slightly higher fuel consumption but far, far less to go wrong; not to mention being quieter, smoother and nicer to drive.
EO
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EurasiaOverland a memoir of one quarter of a million kilometres by road through all of the Former USSR, Western and Southern Asia.
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21 May 2018
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I bought a 1999 Prado/Colorado with e 1KZTE in 2011 for overlanding. 50 000miles later its still going strong. Only troubles I've had are normal wear and tear items, clutch, brake pads, bushes etc.
Chassis rust can be an issue on these and a regular problem is the rear upper link bar supports on the axle rusting through. The axle is an easy fix for a competent welder.
I've travelled with people driving all sorts of vehicles some with £20 000+ in 'overland' modifications and mine goes everywhere they do.
Great choice for a light overlander imho
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21 May 2018
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Do you know what they add to diesel in Siberia to make it flow at low temperatures? If it's just kerosene this could reduce the lubricity of the diesel. And yet I have seen a video of a LC200 being used in Siberia (I don't know but assume it had the common rail diesel engine).
EO - I see you have driven the Kolyma highway to Magadan a couple of times. What was your experience of the quality of the diesel you could buy along the Kolyma highway and in Magadan? Also, can you comment on whether it is possible to ship a 4wd one way between Magadan and Vladivostok.
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21 May 2018
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Quote:
Originally Posted by kiwi1973
Do you know what they add to diesel in Siberia to make it flow at low temperatures? If it's just kerosene this could reduce the lubricity of the diesel. And yet I have seen a video of a LC200 being used in Siberia (I don't know but assume it had the common rail diesel engine).
EO - I see you have driven the Kolyma highway to Magadan a couple of times. What was your experience of the quality of the diesel you could buy along the Kolyma highway and in Magadan? Also, can you comment on whether it is possible to ship a 4wd one way between Magadan and Vladivostok.
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I think we're getting a bit off topic here, and I replied to another post of yours on the same subject, but I would add that yes, locals do have common rail diesels (though prefer petrols) but they will know where to get good fuel. Plus it's Russia: one day you put bad fuel in your car and your engine is wrecked... that's life. Happened twice to a friend of mine who lives there, though he only had to replace injectors but it was a petrol engine.
I would assume they add paraffin to diesel to depress the pour point, but that's only a guess.
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EurasiaOverland a memoir of one quarter of a million kilometres by road through all of the Former USSR, Western and Southern Asia.
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1 Jun 2018
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YOu can add a preheater to get around the winter waxing problems. I believe some people also add petrol to their diesel but I don't know what percentage.
If you can run to about 10k this would be a great choice
As tough as a 70 but more comfortable. A good olf fashioned non turbo diesel engine that would run on your piss if you drunk enough vodka!!
Andrew St Pierre white spoke highly of his
https://www.ebay.co.uk/itm/323279187...828&rmvSB=true
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1 Jun 2018
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It depends how cold you want to go, EO has gone seriously cold and that does take preparation!
My 60 has gone to -22 on standard diesel (bought in Belarus) and oil with no problems except being a bit lazy to turn over first thing in the morning (make sure your batteries are good!) and a bit stiff on the gearchange for the first 5-10 minutes.
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