need oil advice HP4 to GN4


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jlsdcen2
Posts: 4
Joined: Sun Apr 28, 2013 2:22 pm
Location: EDGERTON,Ohio
Motorcycle: 2001 GL1800

need oil advice HP4 to GN4

Postby jlsdcen2 » Fri Jun 07, 2013 11:54 am



I recently purchased an 2001 1800 Wing with 25000 miles that has used nothing but Honda HP4. Is it necessary to stick with this or can I switch to the Honda GN4. Could this damage the engine?
Thanks



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Sally
Posts: 421
Joined: Wed Apr 20, 2011 10:25 am
Location: Dundee,NY
Motorcycle: 02 goldwing

Re: need oil advice HP4 to GN4

Postby Sally » Fri Jun 07, 2013 1:58 pm

When I bought my 02 with 23000 miles on it they always used amsoil. Well I'm not paying 40 bucks a gallon and did a lot of research and this is just what I use and know others don't agree. I used shell Rotalla T 15w40 in every bike I've owned and never had a problem and the 02 went to rotella my first oil change it's been 35000 miles since with no problem . and still $ 13.50 a gallon today. Sally

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themainviking
Posts: 2578
Joined: Wed Sep 29, 2010 6:59 pm
Location: North Bay, Ontario, Canada
Motorcycle: 2009 GL1800 AD

Re: need oil advice HP4 to GN4

Postby themainviking » Fri Jun 07, 2013 3:23 pm

jlsdcen2 wrote:I recently purchased an 2001 1800 Wing with 25000 miles that has used nothing but Honda HP4. Is it necessary to stick with this or can I switch to the Honda GN4. Could this damage the engine?
Thanks


No, you do not have to stick with the same oil as was used before. As long as the GN4 meets the specs that Honda decided upon for the GL1800, you can switch. As Sally mentioned, Rotella is a good oil. You could switch to it also, without incident as long as you get one that is JASO MA certified. Read the label carefully. Sally also mentioned Amsoil. It is indeed more expensive than the Rotella, and you could use it also. Bottom line - use a motorcycle specified oil which meets JASO MA standards with an API service classification of SF or SG and Viscosity rating suitable for the bike and you will be fine. (10W30 10W40 15W40 and 15W50 seem the most suitable) Oil does not care what it is lubricating, as long as it is not too slippery for the clutch plates.
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