SOHC.co.uk Forums > CB750

What oil?

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Andy1976:
Hi all,
What oil should I be using, 10/40 or 20/50? should it be mineral, semi synthetic or synthetic?
I've been using Halford's own 10/40 mineral.
Just wondered what you guy's recommend?

Thanks

Andy

Bryanj:
Oh boy, if this was the US site people would be putting on the popcorn and opening the beers!!!

In the UK use the 10w40 mineral oil to the spec in the handbook I.E. "SE". NOT SYNTHETIC unless specificaly designed for motorcycle with wet clutch.

More important is change it every 1500 miles----with the caveat of at least once a year--- and although Honda say filter every 3,000 i would say every time oil is changed

Spitfire:
I'm a creature of habit and use the same oil now that I used in the 70's Duckhams 20/50 Classic oil, the important bit is to change it regularly, I always stick to changing the oil every 2000 miles. As Bryan says watch for modern synthetic oils they can affect on your wet clutch.

Cheers

Den

mick:
Hi Andy i use Halfords 10w40 in both my 750's had no problems with it  8), i have also used over the years cheap 20w50 stuff from the supermarkets and had no problems either  ;) change my oil and filter every 1500 miles, cheers Mick.

matthewmosse:
I used to use silkolene 10/40 but price wasn't too good and got worse (

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