Velocette 350 MAC 1954

[Itopman]

Hi.. new to classic bikes and have owned this Velo for a few months and need to carry out oil change (engine and gear box) need advice on what is the best oil to use

I searched and SAE 50 for gearbox but looking on amazon there are loads listed so thought best to ask

Currently not got a manual but will be getting one

Cheers

[Mr Fro]

I take it that's SAE 50 motor oil in the gearbox.

Castrol do a "classic" line of mono-grade oils.

[fastbob]

Demon Tweeks do a range of Miller,s oils for old vehicles but you definitely need to go on a Velocette website for the best advice.

[Itopman]

Thanks will google mono-grade oils and see if the classic comes up

[fastbob]

I believe this has been debated many times before but why do old fashioned bikes have to use old fashioned oil ? In other words, oil technology has made great advances over the years so wouldn't an old bike benefit from using a semi synthetic oil provided it was of the correct viscosity ? I guess in 1954 you just had to use whatever was available so maybe moving parts were machined to tolerances' that worked best with the oils of the day. By the way I've remembered that Silkolene do an oil for old bikes with the quaint name of Chatsworth that comes in a suitably antique style tin .

[Stu]

Does this help at all?

http://velocette-amateur.com/technical_figures.htm