So, which is it? (final drive oil)

Information and questions on GL1200 Goldwings (1984-1987)
  • Sponsored Links
Post Reply
User avatar
Posts: 30
Joined: Sun Apr 24, 2016 6:17 pm
Location: Bentonville, Ark.
Motorcycle: 1987 GL 1200 Aspencade

So, which is it? (final drive oil)

Post by redjetty » Sat May 14, 2016 7:03 pm

Ok,, so i read in the manual that when changing the final drive oil it takes 4.4 oz's to refill,,,,Then you read on and its says fill to the bottom of the fill cap. Come online and 50% say dont over fill only use 4.4 oz's. Then the other 50% say fill to the bottom of the fill line. So,,,, which is it? Does taking it to the bottom of the fill line "over fill it" ? and do I run the risk of "damage'? BTW,,, I changed mine today and 4.4 doesn't even come close to the bottom of the fill cap, more like 6 oz....... So,,, which is correct? thanks rj

User avatar
Posts: 183
Joined: Sun Jul 17, 2011 11:57 am
Location: Coon Rapids MN
Motorcycle: 1987 GL1200I 126k
2009 Honda Silverwing 15k -- the wife's scooter

Re: So, which is it? (final drive oil)

Post by skier » Sat May 14, 2016 7:18 pm

I've change my final drive oil several times. Have always filled until it dribbles out of the fill hole.

User avatar
Posts: 43
Joined: Wed Mar 02, 2016 3:13 am
Location: Shrewsbury UK
Motorcycle: 1987 GL1200AH Aspencade

Re: So, which is it? (final drive oil)

Post by Asp » Sun May 15, 2016 4:18 pm

I fill to the bottom of the filler hole but have noticed a slight oil film near the breather, so perhaps a slightly lower level would alleviate this.
I also put in a dash of Molyslip last time I changed the oil & the reduction in whine is quite considerable.

User avatar
Posts: 92
Joined: Wed Aug 20, 2014 4:32 pm
Location: Spokane, Wa/Tucson, Az
Motorcycle: 98 GL1500 C, 00 GL1500CF, 06 GL1800 3A

Re: So, which is it? (final drive oil)

Post by salty1 » Sun May 15, 2016 4:39 pm

I've always overfilled, let it stop dripping and replaced the fill bolt. If you don't like ounces use 130 mls of hypoid. FWIW

User avatar
Site Admin
Posts: 18848
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: So, which is it? (final drive oil)

Post by WingAdmin » Mon May 16, 2016 6:11 pm

I've never bothered to even measure it. After draining it, with the bike on the center stand (important!), I squirt it in the fill hole until it starts to dribble out. I'll spin the wheel slowly once around, let it settle, then squirt a bit more in until it dribbles again, and then put the cap back on.

Post Reply