collesidis
New member
Is anyone using low octane fuel in their wetheads? I was riding with someone last week who only uses low octane in his K1200. I know it's a different engine but I wondered if anyone ever gave it a try on their new wethead.
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https://plus.google.com/+JohnSherman2/posts/AmHm7Qj4rk6Is anyone using low octane fuel in their wetheads? I was riding with someone last week who only uses low octane in his K1200. I know it's a different engine but I wondered if anyone ever gave it a try on their new wethead.
Higher octane will yield better gas mileage, so in my book it's almost a wash and certainly not worth possibly damaging a very expensive engine. Pay for the high octane if it's available.
I use low octane fuel during winter cold months but when I do I don't run engine RPMs higher than 4.5k. Summer higher octane then I will take RPMs to rev limiter stop. Just my theory for my 2016 R1200RT wet head.
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The question is higher than what? My GS is rated for 89 aki. You might get some knock using 87 but you do NOT get better mileage or anything else from going to 92. The BMW engineers built the engine for 89 and state you can use 87 in a pinch. 92 was never in the game. If you want better mileage get non-alcohol, straight, old fashioned gas rated at 89.Higher octane will yield better gas mileage, so in my book it's almost a wash and certainly not worth possibly damaging a very expensive engine. Pay for the high octane if it's available.
Well, answer to your question: octane, RPM, & winter, my theory applied. No high RPMs with lower octane fuel used during cold winter riding.
See generally,
https://www.hemmings.com/blog/2014/...the-fiction-behind-those-higher-priced-fuels/
http://www.faqs.org/faqs/autos/gasoline-faq/part3/section-1.html
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The simple answer: Use the BNW OEM suggested octane fuel minimum rating for entire RPMs use and enjoy the ride [emoji4]still leaves me asking that proverbial question "why bother with either limitation- lowered rpm and/or lower octane? to save a few pennies? I know on my '16GS, keeping it under any arbitrary rpm (other than redline) is not an easy task... and certainly not when it's just getting into the fun zone of above 5K.
i guess that's why they make bagels, ice cream, pie, donuts and pizza in all kinds of flavors... to each his own.
This is not true and has been proven study after study. Google is your friend....If it were true every single car manufacturer would call for super unleaded in every car to help epa mpg requirements.Higher octane will yield better gas mileage, so in my book it's almost a wash and certainly not worth possibly damaging a very expensive engine. Pay for the high octane if it's available.
This is not true and has been proven study after study. Google is your friend....If it were true every single car manufacturer would call for super unleaded in every car to help epa mpg requirements.
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My 2015 LC RT calls for 93. Not sure where all these other numbers come from but 93 is what my bike runs.
My 2015 LC RT calls for 93. Not sure where all these other numbers come from but 93 is what my bike runs.
I'm sure that's exactly what's being done Marc. The manual specifies 93 RON for some BMW engines (European rating - an older system with flaws) which is 89 AKI (North American rating - a better method of classification). I have never seen any volume produced car or motorcycle in NA specify 93-AKI. The RTW calls for 95-RON which is 91-AKI.... Are you looking at the RON -- and not AKI -- number?