Screwed up...please help

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Jul 3, 2013 | 07:36 AM

Michael Motorcycle

Thread Starter

Intermediate

Joined: Jul 2012

Posts: 36

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From: East Central Indiana

Screwed up...please help

I went to gas station and filled my FLHX with 87 octane gas instead of 93 octane. I had about half a tank when I did this.
It seems to be running rough now. Only has 4200 miles on it.
Will this screw up my bike?
Should I put some octane booster in it? (if so, what kind?)
Any help appreciated...THANKS!

Jul 3, 2013 | 07:39 AM

circlenine

Tourer

Joined: Apr 2012

Posts: 326

Likes: 1

From: Enfield, CT

I am no expert, but I would say no, 3 gallons of gas will not kill your engine. Diesel on the other hand...

If you're worried, top off with 93 now, ride some more, top off again, ride some more, top off again...

(Just my .02)

Jul 3, 2013 | 07:40 AM

Scuba10jdl

Stellar HDF Member

Joined: Aug 2009

Posts: 3,212

Likes: 212

Just go top it off with 93 and continue to top it off every 50 miles or so for a couple fill-ups. Then it will be diluted enough and you shouldn't need to worry about it.

Jul 3, 2013 | 07:42 AM

06Cummins

Road Captain

Joined: Jul 2012

Posts: 597

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From: Quitman, MS

Any octane boost will help look for the one that provides the most boost points. I don't think it will hurt it.

Jul 3, 2013 | 07:43 AM

WG2011

Outstanding HDF Member

Joined: Jun 2011

Posts: 3,036

Likes: 19

From: Savage, MN

Your fine just fill it up with the 93 or whatever is recommended next time. Its not going to hurt anything for one tank. If your really worried run down about half of it and then fill it the other half with the correct fuel. Octane numbers will not hurt an engine as much as it will just not perform as well with the correct octane and if it were an automobile with a much larger tank menaing it would be using this octane longer it may start to ping. But even the pinging is not going to kill the engine its just not great for it. No worries, as said above diesel would be a whole nother story you would have to drain that out.