200sx Lurker

Wahay ello dave_s14.

Great thread chaps - oh where can i get some isopropyl alchohol from? Nuthin to do with cars but i need some.

Anyone selling callipers?

__________________
Mean Black low sleek 200sx S13
Mildly Modded.

swan

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First question, no don't do that, the metals carried in the leaded will effect the valve seats badly.
---

Interesting, the only side effects I was aware of was premature replacement on the spark plugs, lambda sensor and damage to the cats.

---
That mix works nicley and does not flare, it is less good than the mix I outlined earlier and you can go up 15/20% without too much fear (incrementally, so as to not 'shock' the motor) but it means a rather prolonged contact with the cocktail than you would really want.
---


Are you referring to :
"I found that Toluene with about 2% iso-propyl to be best at around 7% by volume of the fuel used. "?

Is this mix more/less carciogenic than the one I listed? If I were (hypothetically speaking of course , to get a batch mixed up would I need more details on a particular iso-propyl to use? With your mix that would mean 4.2l to a 60l tank, correct? Why is it less good than the mix above? In addition, would your mix even at that concentration not be more damaging on the fuel lines?

TIA.

__________________
Regards,
Andre

Joe

Mycroft,

I'm a new user in this forum and have registered in this forum cause I found this thread very very interesting !

I have read that toluene have a negativ impact on rubber and several plastics.

Is'nt the flexible part of the fuel pipe partially made of rubber or plastics ?

Have you ever checked your fuel pipes after having used this Toluene mixture ?

How about the tank itself ? Is it in danger if I use Toluene ? Does this mean that I have to burn this mixture asap ?

TIA (Thanks In Advance) for your answer

Greetings from Switzerland,

__________________
Joe

Mycroft

Yes this was a problem with some items at high levels of Toluene, but since about 1989 when many of these things became part of the make up of 'normal' fuels the materials used in the manufacture of our cars is quite tolerant, although I wouldn't like to run 30% for every day use for a year or so.

Thankfully, the stuff is just too hard to get hold of to do anything like that, 7% has been used in my car for a number of years now and my regular checking of the system has shown no problems at all.

I get my Iso-propyl from Boots the Chemist,

(Edit, the girl behind the counter probably thinks I'm a wino.)

adair69

Just got this thread linked onto the Scoobynet site, absolutely fascinating! Not being too chemically minded and really only understanding the carcinogenic properties in fuels being responsible for
A/ the VAT man wanting his cut and
B/ The change in the make up of fuels

I am truly awestruck in both the way this forum has been run, and the considerable research and effort which has been placed on this topic, which for the most part is incredibly crucial for the cars we all drive. Thank you for trying to simplify it for us "Lay men"

I have one question which I may have missed the answer to, and if so I apologise in advance.

If the fuels are liable to losing "rating" for want of a better expression. Do you have to mix the "Mycroft Elixier" (Tuo, alcohol etc)at the same time as it is used, or could you mix and store a
quantity which will retain its potency for a period of time?

And thanks again for the Tutorial!!

Hugh Keir

Interesting link from B.P. Australia.

http://www.bp.com.au/fuelnews/PET0605.pdf

Probably re-stating stuff that's been talked about earlier but it's good to see comments from an oil company.

" Increasing octane does not increase power"

"All petroleum based products produce similar power"

"Methanol is the only readily available fuel that produces any significant increase in power over petrol"

Steve W

It's not the actual increase in Octane Rating that gives you
more power - it's because with higher Octane you can alter other
factors {Boost, Timing etc ?} to PRODUCE the power, and the
fuel will be less likely to give combustion problems (pinking,
detonation ?).

OR, am I WAAAYYYYY OFF ? ?

Steve.

[ the number of times people at work have said "YEH, I tipped a
bottle of booster in me' Mini and it goes like stink" - it may be
smoother etc. but it's unlikely to be producing any more GO unless
they've altered something else - OR, it SHOULD have had THAT
octane in it in the first place - ie. it was running too low an Octane
before adding the booster !] ?

Mycroft

Nope, you are right on both counts.

Steve W

JESUS ! ! ('scuse 'taking-in-vain')......

You mean I actually (partially) understood something ? ?

I don't believe it.



[ I'll give you the fiver later Mr. M ]

swan

'ello Mycroft,

I realise I didn't address this to you:

---
First question, no don't do that, the metals carried in the leaded will effect the valve seats badly.
---

Interesting, the only side effects I was aware of was premature replacement on the spark plugs, lambda sensor and damage to the cats.

---
That mix works nicley and does not flare, it is less good than the mix I outlined earlier and you can go up 15/20% without too much fear (incrementally, so as to not 'shock' the motor) but it means a rather prolonged contact with the cocktail than you would really want.
---


Are you referring to :
"I found that Toluene with about 2% iso-propyl to be best at around 7% by volume of the fuel used. "?

Is this mix more/less carciogenic than the one I listed? If I were (hypothetically speaking of course , to get a batch mixed up would I need more details on a particular iso-propyl to use? With your mix that would mean 4.2l to a 60l tank, correct? Why is it less good than the mix above? In addition, would your mix even at that concentration not be more damaging on the fuel lines?

__________________
Regards,
Andre

Mycroft

Leaded fuel mixed with unleaded fuel effects the performance of lots of things, Japanese cars in particular have been using unleaded for a very long time and the alloys chosen for many components just are not lead tolerant.

I have only done the work necessary to be confident that my own mix works safely, 7% gives me the ability to advance my ignition enough to get a good bit of extra power safely, I have always erred on the side of caution and will continue to do so, the mix you describe has been used and documented on the net and if you wish to proceed then fine, but as always take great care.

The carcingenic properties of all this stuff can be found at numerous websites, toluene and Xylene are not considered carcinogenic, you must check the others for your self and read the warnings, which are comprehensive, carefully.

If in doubt---check it out.

adair69

Mycroft

Following my earlier post, My curiosity is sufficiently aroused to try your mix, but where can you buy Toluene? And as I asked earlier has it got a shelf life?

Thanks

swan

For those interested http://www.toluene.org/pr02.htm and TOLUENE (AMOCO/TOTAL)

__________________
Regards,
Andre

Guy

Over 10,000 viewings of this thread, just thought I'd bounce it back to the top......

Guy