2 Stroke in Diesel. Test car - BMW 320d.

2 Stroke in Diesel. Test car - BMW 320d.

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80sboy

Original Poster:

452 posts

158 months

Monday 21st November 2011
quotequote all
I was used to the silky smooth petrol six in my Z4 before swapping it for a BMW 320d. This was a 'sensible' (eco) choice, but to keep a bit of a grin on my face the car is mapped, has a straight through exhaust, and filters.

As 4-pot diesels go it's pretty good, but I obviously found it to be rough and lumpy in comparison to the straight 6. How I miss it!

Anyway, I've been reading in a few forums about the benefits of adding 2-stroke mineral oil (low ash) to your fuel tank before filling the car with diesel. I couldn't find any negatives or dangers in doing so, only positive feedback and some pretty convincing evidence.

It's important that the oil is Jaso FB spec compliant, low ash, and not fully synthetic - because this does not burn well.

This 2-stroke/diesel blend apparently brings the following benefits.

1. 2-stoke burns better and more cleanly than diesel. This means more complete combustion of your diesel fuel.

2. Helps to initially clean out the engine internals, and keeps them clean.

3. Restores missing lubricants (and more) from low sulphur diesel.

4. The engine runs much more smoothly and is much quieter.

5. Significant reduction in smoke from exhaust (due to better combustion). Applicable for cars with no DPF

6. Keeps the DPF cleaner.

7. Increases the life of the engine, including injectors, fuel pump, etc.

So, I thought I'd give this a go!

Last night, I put 300ml of 2-stroke oil, into my car, before filling up with Shell Fuelsaver Diesel. I then set of on a 125 mile journey home, not expecting much...

However, after a short while I found that the engine was quieter and running much more smoothly! Much less clatter on the outside and definitely quieter in the cabin.

The car seemed to be a little more responsive and pulled better in higher gears, especially at low rpms. I found that I didn't have to change down nearly as much when cruising at low speeds and whilst accelerating.

My car used to let out a little black smoke when I put my foot down, slightly embarrassing! However, now there seems to be none at all! At worst there is a little haze, but nothing more than that.

Based on what I've found so far, I'd definitely recommend giving this a go. I was really sceptical about noticeable results, but it seems to be working a treat!

It's still early days yet, but I'll report back after a couple more tanks with this stuff and update my findings.

You may want to Google compatibility with your specific car. I take no responsibility in people trying this trick for themselves.

I'd be interested to know if anyone else tried this?? With good or bad results?

PS. No derv-head jokes please! I am not one... I'd go back to a petrol 6 anyday! lick


Benbay001

5,801 posts

158 months

Monday 21st November 2011
quotequote all
I suggest you add a disclaimer.
fk. Forget that. (twice in 10 minutes i reply without properly reading what im replying to) Dam
Maybe i could insert soomething about a 335d and all will be forgotten?
Imagine what it would do in a 335d! (better)
(..Shut up ben, just shut up.)

Edited by Benbay001 on Monday 21st November 12:25

Vladimir

6,917 posts

159 months

Monday 21st November 2011
quotequote all
A lot of Defender owners are doing this too but the engines run on almost anything!

I'm tempted to have a go - in the Defender (TDCI). I'd be too scared to try it in the BM!

Ranger 6

7,053 posts

250 months

Monday 21st November 2011
quotequote all
80sboy said:
...Last night, I put 300ml of 2-stroke oil, into my car, before filling up with Shell Fuelsaver Diesel...
How many litres did you fill/does the tank take?

Lund

1,743 posts

211 months

Monday 21st November 2011
quotequote all
So which brand of 2-stroke are you using?

y2blade

56,127 posts

216 months

Monday 21st November 2011
quotequote all
I read about this when I first got my D5.....was told it was a no no nono on modern diesel engines.


what year is the "test car" ?

80sboy

Original Poster:

452 posts

158 months

Monday 21st November 2011
quotequote all
Ranger 6 said:
How many litres did you fill/does the tank take?
Tank capacity is 61l. Adding 300ml of oil brings means a ratio of oil to diesel is approx 1:200.

Which is about correct.

80sboy

Original Poster:

452 posts

158 months

Monday 21st November 2011
quotequote all
y2blade said:
I read about this when I first got my D5.....was told it was a no no nono on modern diesel engines.


what year is the "test car" ?
Who told you this? And why not out of interest?

I've only heard good things, on new and old cars. Including Audi's, VW's, BMW's, Landies, etc.

My car is 2006.

Classic Grad 98

24,724 posts

161 months

Monday 21st November 2011
quotequote all
Vladimir said:
I'm tempted to have a go - in the Defender (TDCI). I'd be too scared to try it in the BM!
Funnily enough you'll probably find the TDCI Landie is more sensitive than the beemer! the Ford TDCI system is notoriously complicated and sensitive.

VR6 Turbo

2,227 posts

155 months

Monday 21st November 2011
quotequote all
brings new meaning to the term 'oil burner'

VR

Vladimir

6,917 posts

159 months

Monday 21st November 2011
quotequote all
Classic Grad 98 said:
Funnily enough you'll probably find the TDCI Landie is more sensitive than the beemer! the Ford TDCI system is notoriously complicated and sensitive.
Oh darn. Surely a Transit engine (which it basically is!) can't be complex?! It sounds about as sophisticated as a Millwall fan.

Braintax

321 posts

188 months

Monday 21st November 2011
quotequote all
You are brave, I wouldn't want to be putting that through those (hideously expensive) injectors

y2blade

56,127 posts

216 months

Monday 21st November 2011
quotequote all
80sboy said:
y2blade said:
I read about this when I first got my D5.....was told it was a no no nono on modern diesel engines.


what year is the "test car" ?
Who told you this? And why not out of interest?

I've only heard good things, on new and old cars. Including Audi's, VW's, BMW's, Landies, etc.

My car is 2006.
good luck then...my volvo D5 is 2002 and I was advised strongly against it.

my advice was from a intendant Mechanic..he said it was ok with the older basic stuff (like the ancient 1.9 VAG units and the old French Diesels etc..etc.) but a big NO on any newer cars.


300bhp/ton

41,030 posts

191 months

Monday 21st November 2011
quotequote all
y2blade said:
80sboy said:
y2blade said:
I read about this when I first got my D5.....was told it was a no no nono on modern diesel engines.


what year is the "test car" ?
Who told you this? And why not out of interest?

I've only heard good things, on new and old cars. Including Audi's, VW's, BMW's, Landies, etc.

My car is 2006.
good luck then...my volvo D5 is 2002 and I was advised strongly against it.

my advice was from a intendant Mechanic..he said it was ok with the older basic stuff (like the ancient 1.9 VAG units and the old French Diesels etc..etc.) but a big NO on any newer cars.
But without reason that advice is pretty pointless. You need to know why it can or can't be used.

Also an indi mechanic, or any mechanic for that matter is unlikely to be an expert on the subject, unless they have some specific reason to be an expert that is. But general mechanics certainly won't cover such things.

y2blade

56,127 posts

216 months

Monday 21st November 2011
quotequote all
300bhp/ton said:
But without reason that advice is pretty pointless. You need to know why it can or can't be used.

Also an indi mechanic, or any mechanic for that matter is unlikely to be an expert on the subject, unless they have some specific reason to be an expert that is. But general mechanics certainly won't cover such things.
rolleyes do you have a standing argument with everyone you ask a question of in real life?
I asked the mechanic if it was a good idea or not...his reply is pretty much word for word how I typed it.

should I have pestered him some more you think?
his reply was good enough for me...I had no reason to call him a Liar!

coffee



80sboy

Original Poster:

452 posts

158 months

Monday 21st November 2011
quotequote all
y2blade said:
good luck then...my volvo D5 is 2002 and I was advised strongly against it.

my advice was from a intendant Mechanic..he said it was ok with the older basic stuff (like the ancient 1.9 VAG units and the old French Diesels etc..etc.) but a big NO on any newer cars.
I'd be interested to know his reasoning behind that. This is the first negative I've heard about doing this.

In fact, I read that behind closed doors many manufacturers have tested this themselves with very positive results. I'll see if I can dig it out on Google sometime.

y2blade

56,127 posts

216 months

Monday 21st November 2011
quotequote all
80sboy said:
y2blade said:
good luck then...my volvo D5 is 2002 and I was advised strongly against it.

my advice was from a intendant Mechanic..he said it was ok with the older basic stuff (like the ancient 1.9 VAG units and the old French Diesels etc..etc.) but a big NO on any newer cars.
I'd be interested to know his reasoning behind that. This is the first negative I've heard about doing this.

In fact, I read that behind closed doors many manufacturers have tested this themselves with very positive results. I'll see if I can dig it out on Google sometime.
Please do yes if it is good for the engine,injectors and sensors I'll be happy to do the same with my diesel cars too

smile



Vladimir

6,917 posts

159 months

Monday 21st November 2011
quotequote all
Most reliable engine we have ever had is our 2 stroke 60bhp petrol boat engine.

Get's left in brackish water almost all year, only gets serviced every two years, yet starts every time and revs to sillyish numbers every time.

I miss two strokes even if they do belch out too much smoke!

Classic Grad 98

24,724 posts

161 months

Monday 21st November 2011
quotequote all
Vladimir said:
Classic Grad 98 said:
Funnily enough you'll probably find the TDCI Landie is more sensitive than the beemer! the Ford TDCI system is notoriously complicated and sensitive.
Oh darn. Surely a Transit engine (which it basically is!) can't be complex?! It sounds about as sophisticated as a Millwall fan.
Wish that were true! The Mondeo TDCI is the first car I have owned that I'm scared or breaking. They run ludicrous injection pressures, with EGR valves etc to worry about. Unfortunately, injectors do fail and it's not a cheap fix!
Shell diesel only for mine.

frosted

3,549 posts

178 months

Monday 21st November 2011
quotequote all
y2blade said:
rolleyes do you have a standing argument with everyone you ask a question of in real life?
I asked the mechanic if it was a good idea or not...his reply is pretty much word for word how I typed it.onethebond@googlemail.com

should I have pestered him some more you think?
his reply was good enough for me...I had no reason to call him a Liar!

coffee
Tbh 300 is right , since when a mechanics word is gospel ? I find some mechanics incompetent at best especially Indy ones
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