Regular or mid grade gas for 2006 GL1800?


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twv60s
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Regular or mid grade gas for 2006 GL1800?

Postby twv60s » Wed Aug 22, 2012 7:56 am



My owners manual says to use gasoline rated above 86 octane so I use Regular (87 Octane) but the other day while filling up my bike a couple of other Goldwingers said I was making a mistake by not using Mid Grade (89 Octane). I know that in a Automobile using a higher octane fuel than required is a no-no but am now worried I may have messed up.

Please give me your thoughts as to the proper fuel to use in my 2006 GL1800 Goldwing.

Thanks for your help,
tom



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st4r50
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Re: Regular or mid grade gas for 2006 GL1800?

Postby st4r50 » Wed Aug 22, 2012 8:21 am

FWIW...
I copied the following from a publication from the Minnesota Department of Commerce.

Octane Myths
• High octane gasoline improves mileage.
In general, if your car is designed to run on 87 octane gasoline, high octane gasoline will not improve
mileage. If switching to high octane gasoline does improve mileage, you might find that your engine, or its
control systems, need repair.
• High octane gasoline gives quicker starting.
No, it doesn’t.
• High octane gasoline increases power.
If your car is designed to run on 87 octane gasoline, you shouldn’t notice any more power on high octane
gasoline. Again, if it does make a noticeable difference, your engine, or the engine’s electronic control
systems, may need repair.
• High octane gasoline has been refined more – it is just a better product.
Additional refining steps are used to increase the octane; however, these additional steps do not necessarily
make the gasoline a “better” product for all engines. They just yield a different blend of hydrocarbons that
burn more slowly. The additional steps also increase the price.



If you refer to your owners manual, you will find plan old regular gas is recommended. IMO it's not worth the added $ for higher octane gas. I do however like regular gas and not ethanol blends but it's becoming harder to find and usually costs more. Not because it's better but it is more stable for storage. If you drive your bike often you shouldn't have a gas problem with ethanol blends. If you leave it sit for weeks at a time or longer then you should spend the extra money for non ethanol blend gas or use a suitable stabilizer for ethanol blended gasoline.

It's not likely to damage your bike using high octane fuel, however it's a waste of money.
KG4USG
73

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thrasherg
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Re: Regular or mid grade gas for 2006 GL1800?

Postby thrasherg » Wed Aug 22, 2012 11:31 am

My father in law was on the European Gasoline standards board (honestly what he doesn't know about Gas isn't worth knowing), he is now retired, but he always told me to run the lowest octane rating that doesn't cause your engine to knock.. Higher octane ratings can give more power, but only if the engine is modified/tuned to use the higher rating, otherwise you are just wasting money. I run my 2005 GL1800 on regular gas and in 34,000+ miles have never had a problem. If I am going to high altitudes 9,000+ feet then I sometimes use higher octane fuel as it just seems a good idea (No proof that it helps). If your bike runs fine on regular then stick with it..

Gary

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Re: Regular or mid grade gas for 2006 GL1800?

Postby WingAdmin » Wed Aug 22, 2012 2:46 pm

thrasherg wrote:My father in law was on the European Gasoline standards board (honestly what he doesn't know about Gas isn't worth knowing), he is now retired, but he always told me to run the lowest octane rating that doesn't cause your engine to knock.. Higher octane ratings can give more power, but only if the engine is modified/tuned to use the higher rating, otherwise you are just wasting money. I run my 2005 GL1800 on regular gas and in 34,000+ miles have never had a problem. If I am going to high altitudes 9,000+ feet then I sometimes use higher octane fuel as it just seems a good idea (No proof that it helps). If your bike runs fine on regular then stick with it..

Gary


Actually at higher altitudes you can get away with running LOWER octane. Higher octane values are used for turbocharged or supercharged engines that have higher intake manifold pressures, to prevent detonation. At high altitudes, the manifold pressure is even lower than normal.

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Re: Regular or mid grade gas for 2006 GL1800?

Postby SteveB123 » Thu Aug 23, 2012 5:33 am

twv60s wrote:My owners manual says to use gasoline rated above 86 octane so I use Regular (87 Octane) but the other day while filling up my bike a couple of other Goldwingers said I was making a mistake by not using Mid Grade (89 Octane).


Unless the random octane observations were made by Honda Engineers, I'd pay no attention. If they WERE made by Honda engineers, I'd ask them to explain the descripency between their advice and the Factory manual.
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Possum51
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Re: Regular or mid grade gas for 2006 GL1800?

Postby Possum51 » Thu Aug 23, 2012 7:14 am

I look at it this way, if it has ethanal in it, it ain't going in my bike. I'd rather pay a little extra per gallon that pay a mechanic to clean all that gunk out of my carbs and fuel system. Some say use 87 oct and then add the stable fuel treatment, well doing that is fine but you are still paying extra to do so.
Rick.....

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Re: Regular or mid grade gas for 2006 GL1800?

Postby WingAdmin » Thu Aug 23, 2012 8:12 am

Possum51 wrote:I look at it this way, if it has ethanal in it, it ain't going in my bike. I'd rather pay a little extra per gallon that pay a mechanic to clean all that gunk out of my carbs and fuel system. Some say use 87 oct and then add the stable fuel treatment, well doing that is fine but you are still paying extra to do so.


You're lucky to have that option. Up here, there are only a handful of places that sell ethanol-free gas, and most of those are boat marinas.

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Possum51
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Re: Regular or mid grade gas for 2006 GL1800?

Postby Possum51 » Thu Aug 23, 2012 10:47 am

WingAdmin wrote:
Possum51 wrote:I look at it this way, if it has ethanal in it, it ain't going in my bike. I'd rather pay a little extra per gallon that pay a mechanic to clean all that gunk out of my carbs and fuel system. Some say use 87 oct and then add the stable fuel treatment, well doing that is fine but you are still paying extra to do so.


You're lucky to have that option. Up here, there are only a handful of places that sell ethanol-free gas, and most of those are boat marinas.

Everywhere I've been for gas around home and traveling inside the state of Georgia its the same, low and mid grade have ethanal, but the high grade (premium 93) does not. Can't say about other states (yet :D )


Rick.....


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