4 Star in my Waggon

[oilyrag]

Yes Mark 90 oct for the 70's american market

Mark, If you've followed the excellent web contacts provided by 937 Carrera you will notice that for fuel at the pump in the states, 90 octane (PON) is equivalent to our 95 (RON).
Just to throw a real curve ball, my '72 2.4 was originally sold in France so my handbook is in French......this states use 91 ROZ whatever that means (I can't think of any French word that fits the bill yet) !!
I get on fine with standard 95 unleaded ....no hint of pinking at any loading ....engine was set up by JZ on a rolling road. []

 

[937carrera]

By the way Vin, going back to the original question, have you decided what fuel you are going to use ?

 

[Mark_Bennett]

you will notice that for fuel at the pump in the states, 90 octane (PON) is equivalent to our 95 (RON).

I noticed[]

In my defence, my figures were pulled out of the air (and I did say "something like".[]

All I really remembered, was that there was a wild difference between the rating shown on USA pumps, and ours. After posting I looked it up in a USA Boxster handbook, and it stated 98 Octane RON, known in the USA as 93 Octane CLC (Cost of Living Council octane rating)
Quaint...[]

 

[SJW BASIRE]

Makes me feel smug that I ended up with a low-compression 188 hp "2 Star" SC when I was looking for mine[]

 

[937carrera]

Nicked from another web site

ROZ stands for Reguläre Octan-Zahl which translates to Regulation Octane Number. ROZ is the German equivalent of RON.

 

[Guest]

Tim,

cheers for info.
I have to say I was put off magnatex in my wifes MX5 as I was informed it had a larger than usual ash content in it ?Do you know of this ??

Vin.[8|]

 

[oilyrag]

Many thanks 937 Carrera........
I think you'll have to become the forum's fuel expert.....you seem to know all the good web sites.

Doh!! & there was me thinking ROZ was French...never thought it could be German!! []

 

[944Turbo]

I notice no one mentions additives ! any reason for this or does this open another can of worms???

My old man runs a scooby in Botswana (92 Ron = bad) best additive we found was toluene

http://www.elektro.com/~audi/toluene/

I don't suppose it is readily available in the UK though

Tony

 

[937carrera]

...... and HM Customs & Excise would be a little miffed if they found people using it in vehicles without paying fuel duty.

Remember the furore when some supermarkets in South Wales were found to be having huge sales of sunflower oil. People were using it as part of the fuel for their diesel cars[][]

http://www.sovereignty.org.uk/features/footnmouth/biofuel.html

http://news.bbc.co.uk/1/hi/england/1750734.stm

It's a bit stupid really. By no means would I describe myself as "green" but given the choice of a renewable energy store or further consumption of crude oil for fuel then it seems crazy not to promote the renewable source. The next time a government brings up a tax increase as environmentaly friendly this should be shoved back in their face. The only thing that's important to them is the tax take "Rant over"

 

[944Turbo]

and should you forget to declare your toluene to HM C&E and add it to unleaded it would work out cheaper, as toluene is approx 30p litre. (effectively diluting your petrol with a cheaper additive)
Tony

 

[bones]

ORIGINAL: Vin

Tim,

cheers for info.
I have to say I was put off magnatex in my wifes MX5 as I was informed it had a larger than usual ash content in it ?Do you know of this ??

Vin.[8|]

I use Magnetec and think it's the best thing since sliced bread. If an oil has 'ash' in it whatever that is how does it manifest itself. Do you leave an 'ashtray' next to the exhaust when you put back in the garage? What is this mysterious 'ash'? Did a BMW dealer tell you this?

 

[Guest]

toluene

I thought toluene was a bit of a no-no, chemical wise, as it is based on the benzene ring, which is carcinogenic.

Or am I completely wrong ?

 

[944Turbo]

we did look into it on the web and research indicates that Toluene is not a carcinogen, however it should be treated with some respect - no prolonged contact with skin - do not inhale vapours etc. - very similar to petrol in fact.
Tony

 

[Guest]

I used semi synthetic oil in my old 1982 204HP SC when I had it. Used unleaded without any problems or power loss.. optimax when i felt generous.
Had heard that the additives in LRP did very little and were not really required. Also heard that some additives caused damage?.
Changed oil every 5,000 but didnt use the car every day. It literally did not leak a drop of oil anywhere! (rare for an SC) and the oil on the dipstick looked clean always.

Some other lucky blighter has the car now... I miss it!... boo hoo...[]

 

[oilyrag]

You exchanged this superb car for a Boxter !!!!!!!???????
Ahhhh... the follies of youth! [8D]

 

[bones]

ORIGINAL: jonhale2000

I used semi synthetic oil in my old 1982 204HP SC when I had it. Used unleaded without any problems or power loss.. optimax when i felt generous.
Had heard that the additives in LRP did very little and were not really required. Also heard that some additives caused damage?.
Changed oil every 5,000 but didnt use the car every day. It literally did not leak a drop of oil anywhere! (rare for an SC) and the oil on the dipstick looked clean always.

Some other lucky blighter has the car now... I miss it!... boo hoo...[]

Yep repent at leisure (although I don't know why people don't think the Boxter is a superb car, it clearly is) and you'll be hard pushed to find a really good SC like the one you had and that's why I intend to keep mine ( I've had it 20 years next year)and move somewhere where I can have a larger garage with a later model Porker too. GT1 would be nice , a big lottery win must happen sooer or later surely?

 

[oilyrag]

The comment was meant as no reflection on the quality of the Boxter....it is probably the best everyday car ......BUT for fun I know what I would choose!

There again at my age you would not expect me to say anything else.......we hanker after the impossible cars of our youth, made possible only by the passage of time. (ie car value down, disposable income up) ! []

 

[Guest]

I have the same problem too. I used shell LRP because the previous owner used it, but because this will be discontinued, I checked with the SC technical expert (phone no. in PP) and he said normal unleaded 95 is fine and anything else is a waste of money! Higher than 95 is not necessary because the SC is not a high compression engine.
Hope this helps.

P.S. Why is Mobil 1 better than say the oil my garage uses - Castrol Magnatec?

 

[oilyrag]

Because........as Tina Turner would have it..........
"it's simply the best,... better than all the rest"!!

Oh & it's fully synthetic.....almost stops wear......lots of POA in it.
Pure POA is what is in jet engines as a lubricant......only gets changed at major service intervals & they're not too frequent. [8|]