E10 or not

[ymfb]

I was told by the dealer to use super unleaded, which I have, except when in France where the choices in the only filling station I used was 95 or 95 E10, so I did a splash & dash of 95.

In those circumstances whats best ?

TIA

 

[matchbox]

I use standard unleaded all the time without a problem.

 

[Nice 'n' Fat]

I use standard unleaded all the time without a problem.

Me too

 

[Deleted account 190920001]

E10 is a higher ethanol content which is probably best to avoid.

 

[roamer]

We have around 5% bio ethanol in unleaded, not sure about 98,
I did try e 10 in France , it didn't seem to make a lot of difference apart from smell,
but run super when available or 95,,when abroad,
I work near the refinery, that's what they told me not sure if it's every brand,,
Roamer

 

[Oilcracker]

Personally I'd go for as low an ethanol content as possible. The reasons? Ethanol is a fantastic solvent and I'd be concerned for any rubber seals in fuel injection systems. Newer systems should be designed around this fuel but you never know what o seal has sneaked into assembly. Ethanol also is a great absorber of water. If you bike is stood around for a good amount of time I.e. Over winter the chances are any condensation built up in your tank will be absorbed into the ethanol causing erratic fuelling on start up.

 

[Jacal]

Honestly didn't know what the "E10" stuff was but if I remember correctly on a recent trip to the Ring, there was a a choice of E5 or E10 in a couple of the station in the Eiffel region so choose....blindly....the E5.
I use the super stuff at home because it's recommended and the cost saving isn't worth doing otherwise, also seems to run better compared with the supermarket shite! and up to press no bluing of exhaust

 

[ymfb]

If you bike is stood around for a good amount of time I.e. Over winter the chances are any condensation built up in your tank will be absorbed into the ethanol causing erratic fuelling on start up.

Bike being stood is not a problem for me, I haven't got a car.

 

[Engineer]

The manual says 95 or E10.

I use 97 or above most of the time because it's posher

 

[Rockred]

I read somewhere that the engine runs a little cooler on 98 than 95, so I put the posh stuff in when I can get it.

 

[sampleman]

E10 was launched in some european countries in order to reduce CO2 output. It has the same octane as Eurosuper (95 octane). In order to rise acceptance of E10 it has a slightly lower tax load, so one liter E10 is three or four cent cheaper than one liter of ordinary Eurosuper.

The good news is that BMW has certified all motorbikes for E10, at least back to 1980. It is known that the R90S with Dellorto carburettors cannot stand E10, but this bike is older. In 2010 BMW launched the latest generation of the aircooled boxer, which has a knock sensor and an engine control computer. This engine is both certified for 95 and 98 octane fuel, but it will reach its maximum power with 98 octane. The new liquid cooled boxer is rated for 95 octane again, and of course also suitable for E10.

I have a '98 R1100GS and I run it on E10 whenever it is available. I never noticed any negative effect, neither engine damages nor fuel consumption. The only effect I can see: I save money.


Beste Grüße vom Sampleman und seinem Tatschpätt

 

[Jacal]

Nice bit of info sampleman....Cheers

 

[batman1]

Interesting thread...I was out with my mates the other weekend and my mate was wondering what was causing the paintwork to bleb up on his Triumph Daytona 955 petrol tank. the tank is GRP on those bikes. My bro kindly pointed out to him that it was the ethanol fuel on it's way out through the walls of the grp tank.

Apparently the ethanol dissolves the resin in GRP, we suggested that he should not burst the blisters if he wanted to get home okay!

He's now on the look out for another bleb free tank, and then he's gonna use the best fuel that he can find.

I believe that early GRP tanks if caught early can be re-sealed with a new ethanol resistant resin slurry...nasty stuff that ethanol.

 

[Clifton]

I run E10 in everything simply because unfortunately that's all there is around here. O2 sensor equipped engines compensate for the additional oxygen, and water won't build up in fuel systems because alcohol blends with both gasoline and water, as long as the ethanol laced fuel is regularly run through. You should try to avoid using E10 in carbureted engines as they'll run lean. Also avoid E10 in the tank for long term storage as it'll actually attract moisture. As far as octane I normally use 89 octane AKI which is your 93 octane RON and I've never heard any pinging. For whatever reason some gas stations price 93 octane (98 Europe) only 10-15 cents a gallon above 89, in those cases I treat the bike to the good stuff.