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Old 03-07-2012, 08:02 AM   #1 (permalink)
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What GAS to run in my Dyna?

I was flipping through my manual other night and found that I'm to be using a high octane fuel in my bike. I kind of question this and wonder.... what grade of fuel do you run in your Dyna Wide Glide?
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Old 03-07-2012, 08:07 AM   #2 (permalink)
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Originally Posted by Lil Fire Dog View Post
I was flipping through my manual other night and found that I'm to be using a high octane fuel in my bike. I kind of question this and wonder.... what grade of fuel do you run in your Dyna Wide Glide?
Harley is obviously in cahoots with Big Oil and just trying to screw you.
I'd ignore the lubrication requirements, too.
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Old 03-07-2012, 09:09 AM   #3 (permalink)
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I look for exxon 93, but just as important, carry/add Sta-Bil to the fuel.
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Old 03-07-2012, 09:39 AM   #4 (permalink)
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Run the lowest grade you can without the motor pinging.
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Old 03-07-2012, 09:48 AM   #5 (permalink)
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dynageno is reading this now saying WTF is this?
I recently stepped down to a mid grade gas and the bike runs just fine.
I add some gas additive once and awhile.
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Old 03-07-2012, 09:57 AM   #6 (permalink)
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89 should be fine. Let the computer do the work.
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Old 03-07-2012, 10:00 AM   #7 (permalink)
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89 should be fine. Let the computer do the work.
Alot of manufacturer recommend premium fuel, but the computer can adjust to lower octane fuel.
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Old 03-07-2012, 10:48 AM   #8 (permalink)
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Alot of manufacturer recommend premium fuel, but the computer can adjust to lower octane fuel.
Oh, absolutely. That's why we spend thousands on cams, heads, big bore kits and dyno tunes. So the ECM can retard the timing, making the bike run hotter and produce less power in order to save us a dime a gallon on gas when we're already gettimg 40 MPG anyway.
I wanna party with you guys.
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Old 03-07-2012, 12:07 PM   #9 (permalink)
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Quote:
Originally Posted by WideOne View Post
89 should be fine. Let the computer do the work.
Quote:
Originally Posted by Luckeman View Post
Alot of manufacturer recommend premium fuel, but the computer can adjust to lower octane fuel.
A couple of the least informed and most illogical comments offered up in a while. Perhaps there was sarcasm intended but I'm doubting it.
While it's true that the computer has some ability to compensate for changes in operating conditions, when it comes to stupid operator decisions, it has its limits. It has to change several operating parameters to try to first try to protect the engine from melt-down and second retain some drivability. Running crap gas to save some pennies might just cost a lot before it's over.
Oh, and while you're counting your savings, consider that while you're saving 5% per gallon of gas, you're now burning 13% MORE of it.
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Old 03-07-2012, 12:20 PM   #10 (permalink)
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All actual standard street-going H-Ds run well with normal 91 octane fuel, exception made for the XR 1200 and the CVOs, the latter need higher octane.
I'm trying to avoid bio-fuels, the admitted 10% is often exceeded by the manufacturers and that is not good.
I never use additives , exception made for a fuel-stabilizer when the bikes start their more than 5 months wintersleep.
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Old 03-07-2012, 12:52 PM   #11 (permalink)
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Originally Posted by ultraplusrotax View Post
All actual standard street-going H-Ds run well with normal 91 octane fuel, exception made for the XR 1200 and the CVOs, the latter need higher octane.
I'm trying to avoid bio-fuels, the admitted 10% is often exceeded by the manufacturers and that is not good.
I never use additives , exception made for a fuel-stabilizer when the bikes start their more than 5 months wintersleep.
I didnt know it was possible to park a bike that long.
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Old 03-07-2012, 03:23 PM   #12 (permalink)
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93 octane usually. lower but still Premium at higher altitudes.
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Old 03-07-2012, 05:59 PM   #13 (permalink)
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I filled up with 110 octane racing fuel, no ethanol and I THINK it was even leaded. Touch the starter and it started and idle was as smooth as it has ever been. I have an 01 Fatboy and it seemed to like it! 8 bucks a gallon!!!
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Old 03-07-2012, 06:03 PM   #14 (permalink)
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Fred1369 is reading this now saying WTF is this?
my 2002 has a carb. 88>96 with KB flattops and 37g. runs just fine on regular. I have put in premium several times and can not feel or hear a difference .
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Old 03-07-2012, 06:28 PM   #15 (permalink)
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Quote:
Originally Posted by HDMoneyPit View Post
I didnt know it was possible to park a bike that long.
The dealer brought themback today; didn't run since end September.Next week first ride-out.
My 2004 UC 96 was always 6 months in hibernation; now and then Optimate-trickle-charger, comes Spring it starts immediately, traded it in with more than 60.000 miles end 2009, except from oil, filters & plugs nothing was ever replaced. Same positive experience with my 2008 Sportster 1200,only 4303 miles.
Less luck with my 2010, a sharp stone was inbedded in the belt; $$$.
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