Cheap oil at Halfords

[elbrownos]

http://www.halfords.com/webapp/wcs/stores/servlet/SearchCmd?storeId=10001&catalogId=10151&langId=-1&action=discount&promotionCode=232174

All £10

Halfords 5W30 Fully Synthetic 4L (usually £34)
Halfords 5W40 Fully Synthetic 4L (usually £34)
Halfords 5W30 Semi Synthetic 4L (usually £24)
Halfords 10W40 Semi Synthetic 4L (usually £17)

[andybesy]

Is the 10 w 40 suitable for bikes?

[Doddsie]

Is the 10 w 40 suitable for bikes?

 whats the difference???     

[andybesy]

I read about some  friction agents unsuitable for bike's wet clutches?

[sadlonelygit]

none of it suitable for bikes.
api-sf/sg only for bikes, all that stuff is SL/M

[elbrownos]

You sure? Even Halfords Motorcycle Oil is SL

[sadlonelygit]

i was refering to the use of car oils , unless you have a bmw or dry clutch bike then stick what you like in there!

[notoriusb.e.n]

I've always just used their own brand 10w40 brown bottle stuff - 7 different bikes no problems with it thus far.
 
Used £5 classic car oil in my Boxer though cos that tractor engine will run forever on pretty much any oil.
 
But then this is another one of those subjects that you could write 20 page essays on and still not have a "true" answer at the end of it. Just follow the owners manual and you can't go too far wrong.

[sadlonelygit]

if it doesn't have JASO-MA (2) or MB then don't use it (here speaks a man who put slick 50 in his ageing cb500t and found a bike that would slip it's clutch in 1st)