Regards from Spain!
I have a question I can't solve with the manual. In it, it's said that the car must run on 95 octane petrol or 98 octane petrol (no more types are avalible in Spain, anyway). ¿Which one do you recommend?
My father used to run it exclusively on 95 octane, and I think that this may make the engine beind a bit... lazy?

¿What type of fuel woud you recommend for my 1989 2.0 Injection?
and, btw... ¿What type of fuel do you use?

95 octane is plenty. If you fill up with 98 octane (or even 100 octane) fuel, you're wasting your money. Spend the difference on a new air filter, new plugs and an oil change instead

I even used to run my B200F - powered 360 on 91 octane fuel - which was still within the manufacturer's recommendations. Now the prices for 91 and 95 octane fuel have been equalised in Germany (basically, the fuel companies raised the price of 91 RON fuel to that of 95 RON fuel and many filling stations have now stopped selling "Normalbenzin"). So now I fill up on 95 octane fuel as well - and notice no difference between the two.

Tom

An '89 360 Should run 95 RON petrol no bother. My '85 prefers the 98 RON, but it doesn't always get it. Fuelling will be optimised to one or the other, so higher octane fuel is, as Tom points out, usually a complete waste of money on a later car. Modern Porsches sense the octane and adjust their map accordingly.

Yes, good quality 95 octane will be absolutely fine. These later B200s were tuned for 92 octane I believe so will run great on 95, make sure that its a good quality one though, Shell or Esso are probably best, but any of the main brands because its got a good detergent and additive package. The one thing to try and avoid is the supermarket fuel, its cheaper for a reason and although it obviously won't damage your car it won't run just quite as smoothly as it will on a good quality fuel.

pettaw wrote:The one thing to try and avoid is the supermarket fuel, its cheaper for a reason and although it obviously won't damage your car it won't run just quite as smoothly as it will on a good quality fuel.

I Totally agree. I usualy fuel my car at 'Cepsa' or 'Repsol' and I use the best quality 95 octane gasoline. I haven't noticed any difference in city use, but for long trips, it makes more kilometers per liter (or miles per galloon ).

Thanks everybody for answering!

José_Manuel wrote:

pettaw wrote:The one thing to try and avoid is the supermarket fuel, its cheaper for a reason and although it obviously won't damage your car it won't run just quite as smoothly as it will on a good quality fuel.

I Totally agree. I usualy fuel my car at 'Cepsa' or 'Repsol' and I use the best quality 95 octane gasoline. I haven't noticed any difference in city use, but for long trips, it makes more kilometers per liter (or miles per galloon ).

Thanks everybody for answering!

Mine runs like a supercar (comparitvely) on Shell, and like a Dirty Old Broken Spluttermobile on Morrisons Supermarket Value unleaded.