BSA Owners' Club Workshop Discussions

The BSA Workshop => Pre War => Topic started by: K Walton on 23 Jan, 2025, 17:13

Title: OILS FOR B21
Post by: K Walton on 23 Jan, 2025, 17:13
Having only recently obtained the bike I don't know how long the oil has been in the engine , gearbox and primary  chain case. As the only reference i can find for recommended oils is Castrol XL or equivalent, it doesn't mention the grade, can anyone advise.
Thanks
Title: Re: OILS FOR B21
Post by: Greenfield on 23 Jan, 2025, 18:00
Go for a good quality classic oil. You won't go far wrong with Castrol XXL40. Use it in engine, gearbox and primary drive.
Title: Re: OILS FOR B21
Post by: K Walton on 23 Jan, 2025, 19:35
Thanks, I'll go and get some
Title: Re: OILS FOR B21
Post by: Mark Cook on 03 Feb, 2025, 16:30
Another option https://pesltd.uk/?product=GF40

Mark