You put..4 litres x 2...= 8 Litres....!!
. It runs nice and quietly, all the time 
This is what I'm using...Big problem in UK is that its not easy to find a 20W50 grade of oil in synthetic/semi synthetic for a reasonable price, most oil of that grade is the cheap mineral stuff for old classics. The only stuff I found was at a H-D dealership at a stupid price per litre, until I found Westway Lubricants (links below).
I bought a 20Litre bulk drum of "Westway Lubricants" Fully-Synthetic 15W50 to JASO MA2 spec when I had my Hexhead, I still use the stuff in my Tmax. I'm tempted to try it in my 1250 once out of warranty to stop it rattling and clattering like a bag of spanners with its piss-thin oil from BMW.
![]()
Westway Lubricants | Oils & Lubricants for Vehicles & Machinery
Shop high quality oils and lubricants for cars, motorcycles, vans and industrial machinery. Fast delivery and trusted performance for every application.www.westwayoils.co.uk
They sell a bike-specific 20W50 Fully Synthetic (also suitable for wet clutches) in 5L and 20L drums:
![]()
20w50 4T Fully Synthetic Motorcycle Oil V-Twin
20w50 Fully Synthetic Motorcycle Oil Suitable for use in air cooled V-Twin 4-stroke motorcycles,specifying a SAE 20w50 viscosity. Perfect for V-twin and older, larger capacity motorcycles.Suitable for use where oil immersed ‘wet’ clutches are present.Incorporated with anti-wear properties and...www.westwayoils.co.uk
Hot climates sell plenty of 20W50, when I lived down under most of the petrol stations had plenty on the shelves.
Yep. That's a good price and for 5ltrs!The one I recommend is £31.99/5 Litres, see link above.
My current 1250 is still under dealer servicing/warranty, but my old Hexhead 1200 got new oil and filters very regularly. If I ever end up doing home servicing on my 1250 I will likewise change the oil and filters more often than the dealership would.
FWIW I used to visit Fuchs Lubritech in Wembley once a month to service their machinery, and seeing oils and lubricants blended its amazing how little there was in it and how few fucks were given by the workforce (I think they have now been liquidated and production returned to Germany).

The link in my post #7 above for smith and Allen is 5 litres for £29.99. Delivered.Yep. That's a good price and for 5ltrs!
Just bookmarked the link
Sent from my SM-S908B using Tapatalk
15/50 fully synthetic in mine the last few years too. It rattles less when really hot.
![]()
Fully Synthetic 15W-50 Motorcycle Engine Oil Ultra 4T 4-Stroke 5 Litre 5L | eBay UK
Limitless Ultra 4T 15w-50 is a high quality fully synthetic motorcycle lubricant, which is formulated to provide ultimate engine and gear performance for all kinds of modern bikes. Limitless Ultra 4T 15w-50 exhibits excellent wear protection and outstanding resistance to oxidation.www.ebay.co.uk

Ordered this yesterday for my TC.I usually use 15w 50. It's comes in at the same price here for the Castrol 15w 50 full fat. It will be interesting to see if it quietens the bike some more.This is what I'm using...
I don't think it's particularly cheap...and I probably change it more than necessary. But I plan to keep the bike for as long as...![]()
Sent from my SM-S908B using Tapatalk
Missed that one! Also bookmarkedThe link in my post #7 above for smith and Allen is 5 litres for £29.99. Delivered.

Ok. So you're all at it. Mine is always filled with 20/50... Very happy about that in Italy, in the summer. V cold starts aren't helped much, but with my super duper 5yr old lithium battery I have no worries. It runs nice and quietly, all the time
Sent from my SM-S908B using Tapatalk