mit heizöl fahren...funktioniert das?? | Posts 16+

For the older DB200D model with the radial piston pump (with camshaft lubrication), no modifications were necessary either. The VP (variable pump) seized after 20,000 km.

Well, that would be nice!
It really only provides good lubrication when an oil film forms that separates the moving surfaces. This is the case, for example, with the main bearings of the crankshaft.
Regardless of whether it's a piston engine with a fixed sleeve or a dry-sump engine, it always operates in the mixed lubrication regime. Additives ensure that the friction surfaces do not seize.
Diesel fuel is thin, and the clearances are tight!
In diesel fuel, the unavoidable sulfur content used to handle this issue. Since diesel fuel is now low in sulfur, additives must be added.
If heating oil contains no sulfur, the same principle applies.
Christian.

christians wrote:

In diesel fuel, the unavoidable sulfur content used to handle this issue. Since diesel fuel is now low in sulfur, additives must be added.

Hi Christian,

If sulfur-free diesel fuel lubricates significantly worse, then we should soon see an increase in pump failures (and potentially PD injector failures) occurring sooner than usual...

...and in the land of the sacred metal, the "magic potion industry" should already be joyfully raising the alarm, in order to soothe the tractor driver's guilty conscience regarding his pump, by selling pump lubricant additives .

Is there already something like that available (e.g., a lead replacement for older gasoline engines), and have I just been overlooking the products and their advertising so far?

Hello Ulf,

ulf wrote:

If sulfur-free diesel fuel lubricates significantly worse, then pumps (and PD injectors??) would presumably fail more frequently or at an unexpectedly early stage.

Commonly available diesel fuel is already relatively low in sulfur content today.

http://www.bmu.de/presse/2001/pm574.php

http://www.medol.de/oel/produkte/diesel.htm

"Quote:"
Low-sulfur diesel fuel.

Since October 1, 1996, only low-sulfur diesel fuel has been available in Germany.

This is undoubtedly a contribution to environmental protection that benefits us all.

However, reducing the sulfur content also brings its own problems, such as fuel filters becoming clogged more quickly. A cold winter can exacerbate this issue.

Sulfur-free diesel is mixed with novel additives to maintain the lubricating and cleaning properties of the fuel. The additives replace the lubricating effect of the sulfur compounds in the diesel. Other additives keep the fuel system clean. In the long term, using cleaning-active additives offers advantages. A clean fuel system is more reliable and has less wear.

During the initial phase of low-sulfur diesel fuel in 1996, there were reportedly more failures of fuel injection pumps due to the altered lubrication properties. Hopefully, today the major oil companies should know how to handle this.

Best regards, Rainer.

That's exactly what I meant. Unfortunately, I can't provide any quotes, but I vaguely remember that there was an article about this in the ADAC magazine (?). After a negative test result, Aral was the first chain to publicly talk about the new additives.
Christian.

Hi!

From Aral.de:



Are diesel and heating oil practically the same thing?

Diesel fuel (DK) and heating oil EL (HEL) are so-called intermediate distillates, but they have significant differences and are optimized for their respective applications. The essential characteristics are defined in the corresponding standards DIN EN 590 (DK) and DIN 51603 (HEL). The density, boiling behavior, and calorific value of HEL and DK are not significantly different.

Differences can be observed in the cetane number, which is not relevant for HEL, while it is a crucial quality characteristic, especially for gasoline with additives (SuperDiesel + LKWDiesel), as it significantly influences the combustion process and, consequently, the engine's emissions.

Similarly, the different sulfur content should be noted: for DK (presumably a fuel type), the maximum permissible limit has been 0.035% by weight since January 1, 2000, while for HEL (another fuel type), a maximum of 0.20% by weight is allowed. These significant differences in sulfur content naturally have a major impact on emissions (particulate matter).

The cold weather performance of HEL is significantly worse at low temperatures compared to commercially available diesel fuels according to DIN EN 590. This means that with HEL, significant driving problems can occur at relatively low ambient temperatures due to paraffin precipitation, which can clog the fuel filter (and in some cases, the engine may not even start!).

In addition, specific additives are added to diesel grades such as Aral SuperDiesel and Aral Truck Diesel, which are specially developed for engine operation and, in particular, for the requirements of modern diesel engines (cleaning additives, oxidation protection additives, corrosion protection additives, wear protection additives, and anti-foam additives). Such additive systems are, of course, not used in HEL.

The use of HEL in a diesel engine is technically possible, but it is far from the optimal fuel for the engine and can, in some cases, lead to significant driving problems (including cold weather performance issues).

Solution: Buy winter heating oil...

Best regards,
Uwe

Sure, here's the translation:

'Here's something funny to break things up.'

I just read something in another forum where a teacher (!!!) claimed the following:
Because of the red dye in the heating oil, the car would then also produce red soot.

That's cool, then I'll paint my diesel engine purple with a pearlescent effect, so it matches the color of my car.

Given that the kids are only being taught such nonsense, is it really surprising what the PISA study results show?

Have a great weekend!

Hello,

I once drove my car for about 8 years, using heating oil as a temporary solution.

A friend of mine used to work in a truck/bus repair shop.

How did that happen?

We checked the turbocharger boost pressure of my Golf III TDI by using a T-connector and performing full-throttle runs and accelerations.

Everything seemed to be fine, but when I arrived at the workshop parking lot, my diesel car suddenly stopped working.

Of course, the fuel gauge was where it usually sits when the engine is off.

Not a gas station in sight.

My acquaintance then immediately said, 'Well, then we'll just fill up with heating oil!'

I wasn't really keen on it, but he managed to convince me.

He then came with a large canister and, using a large funnel, filled the entire tank for me.

As far as I remember, the heating oil was not dyed red.

I thanked them and, after a few attempts (due to air in the line), I was able to drive home without any problems.

I didn't notice any difference compared to regular diesel.

After 100 km, I dutifully refueled with diesel!

In Romania and Russia, it is certainly common to find vehicles running on adulterated heating oil or diesel fuel (containing water, used oil, and other additives).

Bye.

Markus.

Volkswagen Golf III TDI, manufactured in 1995.