MACDADDYBMWR1200RT
The Kansas Tornado
Hey I've got a good question for Y'all, if BMW recommends 91 or better octane for the R1200RT, could you run 94 octane Ethanol 85 in it?
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Hey I've got a good question for Y'all, if BMW recommends 91 or better octane for the R1200RT, could you run 94 octane Ethanol 85 in it?
I wouldn't do that. The fuel system wasn't designed with E85 in mind.. It might run - for a while (and where you you find 94 octane E85?)Hey I've got a good question for Y'all, if BMW recommends 91 or better octane for the R1200RT, could you run 94 octane Ethanol 85 in it?
IIRC most 'older' BMW's are designed for use of 89 octane gas with perhaps the new K engines for higher rated octane gas.
I have run all my bikes , boats and cages on 87 or 89 octane and never had any issues. I also rarely redline the engines either or expect maximum power from them running this type of fuel. Spending extra $$ on higher octane is a waste of money if the engine is not designed for it. If you take it easy on the engine(s), you can get away with a lower octane fuel. If you do hear pinging than you need to step it up a notch from what you have been using. Higher octane does NOT provide more power. It is a anti-knock index not a HP index. Just my 0.02 cts. YMMV.
Hey I've got a good question for Y'all, if BMW recommends 91 or better octane for the R1200RT, could you run 94 octane Ethanol 85 in it?
IIRC the biggest problem with E85 fuel is that an ethanol content of more than 10% can damage rubber components in the fuel system. Many automobiles cannot run ethanol for this reason. I would play it safe and avoid it.
We have that E-85 crap here in WI.
15% gasoline, 85% 'corn crap.'
Big loss of power & harsh on seals and gaskets.
Avoid it like the plague!
I sure notice it. I get 250 miles on a tank full of 93 octane but less than 170 miles if I have to use a lower octane. I do run at between 4,000 rpm and 5,000 rpm so maybe that hurts me. I was running on empty yesterday and filled it up with 91 octane then at half a tank topped off with 92 octane the highest I could find. Finally found a station with 93 and topped it off again. I ended up getting 164 miles on that tank before my "42 miles to go" warning came on.
I can repeat it every time, which I try not to do but it is hard to find 93 octane so I get to test it more than I like.
HATE THE E-85!!!!!
Your local Quik Trip has Top Tier premium with NO ETHANOL.
I'm not sure, but I think the mandate for ethanol use is for regular grade with no demands for it's use in the higher grade fuels.
The law states that the ethanol "mix" fuel shall be clearly marked on the pump. Keep your eyes open for the clean stuff.
Hope this helps.