Fuel really makes a difference

[Jim2]

That's a generous dose Jim , I've still my reliable 1.9 PD .

The Swedes have been doing it for 30 + years .

Recommended dilution .


10 Litre Diesel ---> 50 Ml.
20 Litre Diesel ---> 100 Ml
30 Litre Diesel ---> 150 Ml.
40 Litre Diesel ---> 200 Ml.
50 Litre Diesel ---> 250 Ml.
60 Litre Diesel ---> 300 Ml.
70 Litre Diesel ---> 350 Ml.
80 Litre Diesel ---> 400 Ml.
90 Litre Diesel ---> 450 Ml.
100 Litre Diesel ---> 500 Ml.

Thanks Gazwould, thats a handy list to have !!!..As for the Swede's doing it for 30+ years, well in my school days...a damn sight longer than 30 ( even with the + ) years ago.. I had an after school / weekend job in a filling station, and even back then, the old " Shot of Red X" was standard practice.....1 Penny a shot, if I remember right.....

 

[EmilysDad]

..... If you bought a brand new Rover P4 in the late 50's then you expected oil consumption of 100 miles per pint.

Not to mention oil leaks in cars of that era due to leather lip seals & scroll type oil seals

 

[LostKiwi]

So you are calling the MOT smoke opacity test inaccurate .

Any MOT tester will tell you it's not accurate.
As a means of testing one against the other (using controls) your test is useless as it's done in isolation. You have no comparison of the effect of different fuel mixes on the same day in the same engine. The only thing the smoke test does is say the smoke levels are acceptable from a legal standpoint at the time of testing.

A proper test will have comparitive testing of all formulations of interest including unmodified off the shelf fuel, will be repeatable with a well defined test methodology and be peer reviewed by other scientists/testers to ensure proper testing protocols have been followed.

 

[LostKiwi]

Not to mention oil leaks in cars of that era due to leather lip seals & scroll type oil seals

I remember them!

 

[EmilysDad]

I remember them!

Fortunately I've never owned a car with either but know of them .

My Dad used to have a Triumph 'Razor Edged' Saloon that had leather lip seals.

 

[LostKiwi]

Fortunately I've never owned a car with either but know of them .

My Dad used to have a Triumph 'Razor Edged' Saloon that had leather lip seals.

I worked on a mates Ford 100E and that had them. I vaguely remember a cord rope type seal as well - used to seal the sump around the main bearings.

 

[EmilysDad]

I worked on a mates Ford 100E and that had them. I vaguely remember a cord rope type seal as well - used to seal the sump around the main bearings.

Old car were great ..... weren't they?!

 

[LostKiwi]

Old car were great ..... weren't they?!

They were....
(Removes rose tinted specs and thinks about it...)

 

[Jim2]

Without proper test results any such conclusions are supposition.

I understand that very well, LK which is why I was prepared to try it out in a 2003 A6, but not in my w212 ( so Far) And it worked ( or else it was coincidence with what ever was causing the Limp Home Mode, cleared up at the same time ) In any came I'm happy with the outcome.

 

[Frontstep]

Old car were great ..... weren't they?!

Don't worry the thrill of wondering if you will get there is being reintroduced with electric cars.

 

[Jim2]

I worked on a mates Ford 100E and that had them. I vaguely remember a cord rope type seal as well - used to seal the sump around the main bearings.

Yes, the Ford 100E's were still pretty common when I started working..and I remember the "Cord" seals on the sump. And the wipers were worked on a vacuum system,,,they worked fine when stationary, and until you really needed them. Single line drum brakes, 3 speed gearbox,and any one getting more than 30 MPG, was lucky. Worth a few bob now though, if you had on in good condition.

 

[Gazwould]

I was sceptical smoke opacity machines were accurate from one place and machine to another .

Until it blew 0.02 different the next year somewhere else as now in my ownership.

2011 1.87
2012 1.98
2013 1.96
2014 1.50 ( I'm using 2 Stroke every other or when I remember )

2015 1.01 (Now using 2 Stroke every fill)
2016 0.94
2017 1.17


Then the May 2018 new regs come in and the vehicle has to conform to an unusually low 0.60 manufacturer's smoke opacity coefficient value on the VIN sticker considering it's a Euro 3 , most DPF equipped Euro 5 are 0.50 .

Thinking I had an mot failure on my case I further reduced to a now sub 0.40 because of a poorly ancient original thermostat .

I'll give you a big clue why it works , petrols ignition is too soon , derv is the opposite and has a ignition delay...

 

[Jim2]

Old car were great ..... weren't they?!

Sure they were...and very good for employment too....I remember when even the smallest crossroad village would have it's very own mechanic..

 

[LostKiwi]

I was sceptical smoke opacity machines were accurate from one place and machine to another .

Until it blew 0.02 different the next year somewhere else as now in my ownership.

2011 1.87
2012 1.98
2013 1.96
2014 1.50 ( I'm using 2 Stroke every other or when I remember )

2015 1.01 (Now using 2 Stroke every fill)
2016 0.94
2017 1.17


Then the May 2018 new regs come in and the vehicle has to conform to an unusually low 0.60 manufacturer's smoke opacity coefficient value on the VIN sticker considering it's a Euro 3 , most DPF equipped Euro 5 are 0.50 .

Thinking I had an mot failure on my case I further reduced to a now sub 0.40 because of a poorly ancient original thermostat .

I'll give you a big clue why it works , petrols ignition is too soon , derv is the opposite and has a ignition delay...

But what would it have done without 2T?
That's the question you cannot answer. Would it have improved anyway as the engine bedded in more?
I don't see what your last statement has to do with it as petrols aren't subject to a smoke test (instead getting a more accurate measure of actual emissions of CO and HC). The two work on totally different principles too. A petrol (Otto cycle) engine adds heat at a constant volume whereas the diesel cycle adds heat at a constant pressure (due largely to the much slower burn rate of diesel).

 

[Gazwould]

It would of carried on being around 2.00 , 2 Stroke halved it .

Bedded , mileage 160K !

Someone else said 2 Stroke had halved their smoke opacity before I tried and I was totally skeptical .

Petrol and diesel have different ignition times and directly affect combustion efficiency .

Diesel too slow , so...

 

[EmilysDad]

Don't worry the thrill of wondering if you will get there is being reintroduced with electric cars.

getting back home seems to more like it ...

 

[gassed up]

Yes, the Ford 100E's were still pretty common when I started working..and I remember the "Cord" seals on the sump. And the wipers were worked on a vacuum system,,,they worked fine when stationary, and until you really needed them. Single line drum brakes, 3 speed gearbox,and any one getting more than 30 MPG, was lucky. Worth a few bob now though, if you had on in good condition.

That brought back memories, when we were teenagers we used to hoon around in a 1962 Ford Zodiac. 3 speed column change and the infamous vacuum wipers, taking your foot off the gas in a sudden downpour rendered them useless. I can still smell the inside of that car, leather and damp.

 

[gassed up]

Old car were great ..... weren't they?!

Only if you had a tool box with you, going out on a day trip involved contingency planning.

 

[ajlsl600]

Earlier in the thread I made the point that fuel doesn't essentially come from the same place, additives on the other hand who knows

i always thought it came out of the ground ! and then its how we process it ? and thats where the variables enter the picture?

 

[gassed up]

i always thought it came out of the ground ! and then its how we process it ? and thats where the variables enter the picture?

Crude oil can be obtained from drilling, fracking and tar sands. It can vary from heavy to light and from sweet to sour. The easiest analogy is wine; most but not all is made from grapes and the finished product varies from beautiful full bodied reds to Hungarian Reisling.