A GT380B gearbox oil

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oldbiker
Posts: 57
Joined: Sun Apr 26, 2020 6:54 pm

A GT380B gearbox oil

Post by oldbiker »

So I looked in my aging Haynes manual to see what type of oil the gearbox takes. Its been a while since it was changed and now is the time of year to do these "little" jobs.
The dear old Haynes manual says Castrol GTX. I suppose 45 years ago that was the best thing in town.

I dont remember what I put in the bike last time so I was wondering what to use for this oil change. Something oily no doubt. But any favorites out there.

Ta
Oldbiker.
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Alan H
Posts: 12118
Joined: Fri Aug 05, 2011 6:38 am
Location: Wombwell, Republic of South Yorkshire

Re: A GT380B gearbox oil

Post by Alan H »

Any 20w50 or other similar MINERAL oil.
Proof that four strokes are over complicated
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2strokejohnny
Posts: 1362
Joined: Sun Nov 08, 2009 7:20 am
Location: Bed/Cambs border

Re: A GT380B gearbox oil

Post by 2strokejohnny »

Suzuki GT750B
Suzuki GT750K
Triumph T100 Unit Bonny
oldbiker
Posts: 57
Joined: Sun Apr 26, 2020 6:54 pm

Re: A GT380B gearbox oil

Post by oldbiker »

Thanks for the info. So cheap oil is good. Which is great and a trip to Halfords completed. The old oil was still "looking" ok but its been in a while and must have done 1600 miles at least. Now for a dry day and add a few more miles.
Thanks
Oldbiker
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