Engine oil MOTUL or AMSOIL

I use it in my '14 1200 GS and it's the best oil for the job, tried Castrol and it's not even close. With Motul she runs much smoother and the gearshifts are much better than on Castrol, or OEM BMW oil for that matter

All my cars i use motul 8100 power so spending price ranging from 300 to 1000.

With Amsoil even if it's not signature series I trust it more than any other 0w8.

I run Amsoil and my oil change interval is 25k so the answer is it depends.

I only use Amsoil Signature Series in my B58.

I changed to that and really happy with it so far, shifting is butter smooth.

Based on my own tests, I found the AmsOil to be the best at reducing heat a few degrees. It's not cheap, but it's still cheap insurance, all things considered.

I use Amsoil 20w50 in all 3. You don’t need a different oil for the trans. Amsoil is not cheap but I’ve been using it on my 03 FatBoy since new and have had no problems.

The Motul oil you’re looking at is pretty similar to any old big box oil, but it costs a ton.

personally, I think Amsoil AFL is junk. They ruined a stout oil when they reformulated it to mimick 505.01.