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  #1  
Old 5th-February-2009, 09:59
lightning's Avatar
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Default Diesel additive, 2-stroke oil?

I've been following a discussion in the Ford forum, regarding diesel additives. There's been an investigation by a German company and they are saying that most diesel additives are no use at all.

What they say you should do is add about half a litre of mineral based 2-stroke oil to a full tank, and this will compensate for the reduced lubrication properties of low sulphur diesel.
Also it will improve economy so they say...but this is always claimed with this type of thing.
What do people think of this? I tried it in my Transit TDCi and it does seem smoother but I could be imagining it.
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  #2  
Old 5th-February-2009, 10:02
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Default Re: Diesel additive, 2-stroke oil?

In my opinion, the best doozel additive is vegetable oil.
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  #3  
Old 5th-February-2009, 10:30
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Default Re: Diesel additive, 2-stroke oil?

Quote:
Originally Posted by lightning View Post
I've been following a discussion in the Ford forum, regarding diesel additives. There's been an investigation by a German company and they are saying that most diesel additives are no use at all.

What they say you should do is add about half a litre of mineral based 2-stroke oil to a full tank, and this will compensate for the reduced lubrication properties of low sulphur diesel.
Also it will improve economy so they say...but this is always claimed with this type of thing.
What do people think of this? I tried it in my Transit TDCi and it does seem smoother but I could be imagining it.
if nothing else...it will smell devine...but thats coming from a seasoned motocrosser who loves 2 stroke machinery!!
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Old 5th-February-2009, 10:38
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Default Re: Diesel additive, 2-stroke oil?

Oil is oil.

your diesel engine hardly cares what sort of fuel it gets as long as it is OILY, and the viscosity is about right.

Old engine oil cut (thinned) with kerosene is fine, but try to filter it first.

If the viscosity (thickness) it too high, it may over-pressurise inside the injection pump and damage things.

You guys with older diesel Landies could be running on free fuel if you work out the knack of old oils, filtering and viscosity, and you will find then performance is good too.

CharlesY
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Old 5th-February-2009, 10:56
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Default Re: Diesel additive, 2-stroke oil?

nice to see you back here Mr CharlesY, your words of wisdom have been missed
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Old 5th-February-2009, 11:04
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Default Re: Diesel additive, 2-stroke oil?

Quote:
Originally Posted by maico97 View Post
if nothing else...it will smell devine...but thats coming from a seasoned motocrosser who loves 2 stroke machinery!!
Ahhh ... the smell of Castrol R in the morning mist ...

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Old 5th-February-2009, 11:05
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Default Re: Diesel additive, 2-stroke oil?

MMMmmm.........castrol!like being back on mi yamy RD.
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Old 5th-February-2009, 11:08
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Default Re: Diesel additive, 2-stroke oil?

Quote:
Originally Posted by Paul D View Post
Ahhh ... the smell of Castrol R in the morning mist ...

you knows it brother!!
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  #9  
Old 5th-February-2009, 11:41
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Default Re: Diesel additive, 2-stroke oil?

Quote:
Originally Posted by Sean View Post
nice to see you back here Mr CharlesY, your words of wisdom have been missed
Hi Sean,
Kind words ....

It seems it was an AOL problem shutting me out of some sites without explanation, and Landyzone was one.

AOL is impossible to deal with nowadays. Ten years ago AOL was about the best, but it has gone completely down the drain.

I changed to BT last month, and after a month of "negotiations" my broadband speed is now THIRTY TIMES faster than it was under AOL, or under BT to start with. BT assistance has been extremely good. I was amazed. To start with I thought they were winding me up!

Back to the subject .... real diesel engines with fuel injection pumps and real mechanical injectors will run beautifully on ANY sort of oil, vegetable or mineral, provided that the "cetane rating" is high enough to allow compression ignition, and provided that you make sure the oil fuel never gets too thick. Glow plugs should be in good condition at all times so that starting-up is fast and clean.

Used engine oil is fine but it would be a good plan to arrange a filtering system for it before tipping it in the tank. The local HYDRAULICS people can supply huge filters that will do the job well. FUEL filters for diesels are finer than ENGINE OIL filters, so even using a system of FUEL filters on the old engine oil would be good, and then you thin it down a tad with kerosene (probably never more than 10%) which gets the viscosity DOWN and the cetane rating UP. Even 5% kero makes a BIG difference to viscosity.

Discomania and I used up 50 gallons of lube oil from a big factory machine a while back. We thinned it with a little Kero. Discomania tried 10 litres in his 2.5 NA Defender. "Rocket Fuel" he said. So I put 20 gallons in the Disco td5 and hooked on a caravan and set off down the motorway. Wow ... a real blast it was. Super performance. That fuel was soon used up!

There has been more, and there's no red dye in it.

Don't be scared to do this, and remember, you don't ned to add it all at once or run on neat old engine oils. It doesn't matter what the mix is, but every gallon of used oil you add to the tank saves the price of a gallon at the pumps, so going half-in-half saves as much in the long run. With most fuels being "low sulphur" these days, adding good lube oils to the fuel is positively good for the injection pump and injectors, which need the best lube going. Just make sure the oil you add is filtered (black is OK as long as it is filtered) and that there isn't WATER sloshing about in it. The black in engine oils is ultra-fine carbon dust (like copier or laser printer toner) and will pass through the system fine, and burn away in the cylinder.

CharlesY
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Old 5th-February-2009, 16:31
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Default Re: Diesel additive, 2-stroke oil?

Quote:
Originally Posted by CharlesY View Post
Hi Sean,
Kind words ....

It seems it was an AOL problem shutting me out of some sites without explanation, and Landyzone was one.

AOL is impossible to deal with nowadays. Ten years ago AOL was about the best, but it has gone completely down the drain.

I changed to BT last month, and after a month of "negotiations" my broadband speed is now THIRTY TIMES faster than it was under AOL, or under BT to start with. BT assistance has been extremely good. I was amazed. To start with I thought they were winding me up!

Back to the subject .... real diesel engines with fuel injection pumps and real mechanical injectors will run beautifully on ANY sort of oil, vegetable or mineral, provided that the "cetane rating" is high enough to allow compression ignition, and provided that you make sure the oil fuel never gets too thick. Glow plugs should be in good condition at all times so that starting-up is fast and clean.

Used engine oil is fine but it would be a good plan to arrange a filtering system for it before tipping it in the tank. The local HYDRAULICS people can supply huge filters that will do the job well. FUEL filters for diesels are finer than ENGINE OIL filters, so even using a system of FUEL filters on the old engine oil would be good, and then you thin it down a tad with kerosene (probably never more than 10%) which gets the viscosity DOWN and the cetane rating UP. Even 5% kero makes a BIG difference to viscosity.

Discomania and I used up 50 gallons of lube oil from a big factory machine a while back. We thinned it with a little Kero. Discomania tried 10 litres in his 2.5 NA Defender. "Rocket Fuel" he said. So I put 20 gallons in the Disco td5 and hooked on a caravan and set off down the motorway. Wow ... a real blast it was. Super performance. That fuel was soon used up!

There has been more, and there's no red dye in it.

Don't be scared to do this, and remember, you don't ned to add it all at once or run on neat old engine oils. It doesn't matter what the mix is, but every gallon of used oil you add to the tank saves the price of a gallon at the pumps, so going half-in-half saves as much in the long run. With most fuels being "low sulphur" these days, adding good lube oils to the fuel is positively good for the injection pump and injectors, which need the best lube going. Just make sure the oil you add is filtered (black is OK as long as it is filtered) and that there isn't WATER sloshing about in it. The black in engine oils is ultra-fine carbon dust (like copier or laser printer toner) and will pass through the system fine, and burn away in the cylinder.

CharlesY
Brilliant!
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