Fuel for the Murena

[brinkie]

Hej folk fra Danmark...

This summer we've spent our holiday in Denmark, unfortunately not with the Murena (way too small for a family of four, I even needed a roof box to carry all our stuff with the Peugeot 308) and we got some sunshine and some showers, but it was still better than back home in The Netherlands where summer was skipped and moved to autumn altogether!

I noticed that, apart from prices that may vary over 1 Krone per liter from town to town (*), there is no such thing as RON 98 available. You can get RON 92 and 95 (and Diesel of course), that's it. Quite different from the situation in The Netherlands, where 95 octane is the lowest octane fuel available, some petrol stations have 98 octane available as well (though harder and harder to find, most are switching to 95 for their "Premium" fuels).

How do you refuel your Matra's there? I never got mine working on 95 octane without early detonating, I put either Shell V-Power (which is RON 97 here) or BP Ultimate (RON 98) in the tank. I know there have been previous topics about this, and it should be possible to run the 1.6 and 2.2/2.2S engine on 95 unleaded, but I know very few people who actually do.

_{(*) obviously there was a price war going on in Ribe, I paid DKK 9,98 per liter Diesel, while in some places prices were over DKK 11 per liter...}

[Anders Dinsen]

Good to hear you had a nice holiday here - we think weather was horrible this summer!

Sure, we can find 98 RON. It's still available in a few places:
http://www.eof.dk/Priser-og-Forbrug/98%20oktan%20stationer.aspx

I personally run my Murena on V-power

Cheers,
Anders

[northmurena]

Me too. I would have no good feeling to run my Murena with 95 octan. We have a "Shell" 18 kilometres away from here. That´s where i drive to, when i need fuel. Also when i´m travelling, i look everytime to the red/yellow sign.

~Kai

[RazorbackNOR]

This has probably been answered before, but I think we all can benefit from a recap....

I seem to understand that the Murena CAN run on 95 unleaded.
But what SHOULD it be run on.....?

[JV]

Years ago, someone else published these pictures on a forum, I do not remember where I found them.


My Murena - indeed - runs well with 95 octan. However, this seems to be rather unusual.

[Oetker]

The instruction manual tells you to run the 2.2 on RON 98 (superplus).
I stick to that.
Also the Shell V-power is only RON97, en my car has trouble with it pinging.

[northmurena]

The Shell V-Power was 100 Octan when it started some years ago. But i think ( when i rember right ) actually it has in Denmark 99 Octan, doesn´t it ?

[michaltalbot]

We have Shell V-power 95 and Shell V-power Racing 100, but due to our bluffers who are mixing it with something else, I hope that V-power Racing 100 has at least 96 octans as was Super which was prescribed for Murena. When I take this fuel or Super 98 in Germany - oh my god, the car runs like hell

[JV]

The instruction manual tells you to run the 2.2 on RON 98 (superplus).
I stick to that.
Also the Shell V-power is only RON97, en my car has trouble with it pinging.

Where did you find that in the instruction manual? I can only find they tell you to use super.

Of course it is better to be safe and use RON 98 in case you have doubts or expect problems.

[Oetker]

As far as I know superfuel in the 80s was RON 98

[JV]

Yep, that is the same I found and I could not find anything else.

The Murena instruction manual was written in the time we had leaded fuel. I did not find indications about the RON of leaded super in that time, but I remember that it varied in several countries and sometimes other indications than RON were used (MON, motor-octane number).

Unleaded fuel was introduced in 1986 and later. The guideline from EU (1985) ordered that unleaded super had to be at least RON 95.
So, I presume the leaflet I mentioned is from the second half of the eighties.

[Morne]

A bit of an old post, but still relevant 9 years later 

Last year when I bought my 1600 Murena, I found a bottle of fuel lead additive behind the drivers seat. So presumably the previous owner was using lead additive. As per the post above the manual only refer to using super.

So my question is if I should be using fuel lead additive in a 1600 1981 engine?

[suffolkpete]

You don't need lead additive in either the 1.6 or the 2.2.  I have been running my 1.6 on 99 RON super unleaded for the last 12 years.  I don't know where you are based, but in the UK super has to be at least 97 RON.  While my car will run on 95 RON, it runs better on 99 and the lower fuel consumption offsets the higher cost.

[Morne]

I live in Belgium, and here we get 98 and 95. As a rule I stay away from the 95, as this comes with the "nice" E10 ethanol mix.

Since I purchased the car last year, I have not driven it yet as first it needs a few repairs before it will pass the technical test. And then when one starts repairs, one thing leads to the next, or let me quickly fix this also while I am at it. So going a bit slower than anticipated. In fact it still has the fuel in from last year, so I want to empty the tank and put some fresh fuel in, which triggered my question if I need the additive or not.

[Oetker]

I had som communication with Shell.
The V-power doesn"t contain ethanol so that is for my 2.2 OK.
In Holland aboout the only one useable (the superfuels not in count, They are best thing in my opinion).
I'm testing my 1.6 on E10 now and that drives excelent.
Some disadvantage of the E10 is that rubbers in the carb seize in shorter time.
I have changed my fuel lines to DIN certified that can resist the ethanol and my fuelpump to a modern electric.
The carbureter I can overhaul every 4 year to stay save.
Best is if the car is stored for a longer period to get the fuel out.
Ethanol likes water and takes it from te enviroment making the fuel unusable.
I had some things from carb on test and things don't look good after 6 months.





Herman