95 or 97 octane?

[Martin]

I read somewhere that the RT should be run on 97 octane. I have run my GS on 95 octane since I bought it and have never had any problems.

Which fuel should I be usung?

 

[Steve]

95 is all you need.

 

[alimey4u2]

Run on the lowest "octane" that the motor doesn't show signs of pre-ignition. Any higher & you're just p*ssing money away....

 

[Shep]

It will run well on either, personally i use the cheapest I can buy

Shep

 

[Greg Masters]

Run on the lowest "octane" that the motor doesn't show signs of pre-ignition. Any higher & you're just p*ssing money away....

Largely yes, but not entirely.

The 1200 has an anti-knock sensor and will advance/retard the ignition timing
to make the best of the fuel that it's running on. However, there is a limit to how much advance the ECU will apply. That is determined by the engine's ideal advance characteristic.

Greg

 

[alimey4u2]

Largely yes, but not entirely.

The 1200 has an anti-knock sensor and will advance/retard the ignition timing
to make the best of the fuel that it's running on. However, there is a limit to how much advance the ECU will apply. That is determined by the engine's ideal advance characteristic.

Greg

......

I should have added, or loss of performance

 

[GS TRV]

I think I put in 93 or something the other day in Austria

It was the cheapest they had and the bike ran fine

 

[davidgibson999]

I read somewhere that the RT should be run on 97 octane. I have run my GS on 95 octane since I bought it and have never had any problems.

Which fuel should I be usung?

the RT manual does recommend 97 octane but its engine is in a higher state of tune than the 1200gs. 95 is fine for the GS

 

[terayon]

The new RT's specify 97/98 with it being able to run 95 with the knock sensor. Most of the new BMW's are going this way. Suppose they will make the new GS that way too

 

[NLS]

two SAME topics in the same page

anyway, my GS manual talks about "super unleaded" which I suppose means 97 (or even more?)... I used to use 100, I think I got a bit better mileage (not enough data though) and now usually use 95

 

[Pathologic]

dealer advice

I was advised to use 97 + for my 07 GS. Sales person reckoned it was worth the extra dosh. Thought I would try a tank full and see. I filled it Cambridge and the stated range was 194 miles. by the time I got to London the rang was down to 186 miles. So either it was the fuel, the crap computer or I have found the best short cut

Anyone else had this advice. the salesman can't have been on commission can he?

 

[alimey4u2]

Anyone else had this advice. the salesman can't have been on commission can he?

Lots of action in oil futures, don't trust anyone.....