FAQ Register Login |
10w40? |
Post Reply |
Author | |
Pete 86
Moto GP Alien Joined: 16 Nov 2019 Location: Leeds Status: Offline Points: 350 |
Post Options
Thanks(0)
Posted: 27 Apr 2020 at 12:15 |
Manual says 15w50 .
So why do i see 10w40 reomended for the Vtwin? Viscosity with temp i know. So which is better? Ill proably find a thread on here somewhere sorry for being lazy |
|
legend88
Premium Member Joined: 18 Aug 2013 Location: Newcastle Status: Offline Points: 6598 |
Post Options
Thanks(0)
|
Loads of threads on here about oil choice, take your pick. My take on it is that for a big V twin like these with larger mass parts moving around, the heavier weight oil helps to maintain the oil layer between moving parts. The most important thing that an oil does inside an engine is to maintain an oil barrier between components to keep those components apart. That's why oil pressure is so important as it's the pressure that maintains the oil barrier. It's much more important than the lubrication itself. Many use 10W40 and report no problems but it's over the long term that
these things manifest themselves and then how do you prove the cause of any failure?
Only by extended comparative testing which only the oil companies and the
manufacturers do. I use Motul 5100 15W50 and always have. |
|
Spoonz
Admins Group Joined: 11 Feb 2008 Location: North Devon Status: Offline Points: 10726 |
Post Options
Thanks(0)
|
Either or. Some brands of oil didn’t do a 15W50 so that has more to do with it than any benefit from the different viscosity.
|
|
Ice-mille
Moto GP Alien Joined: 19 Aug 2016 Location: Iceland Status: Offline Points: 786 |
Post Options
Thanks(0)
|
10/50 works top, lots of brands.
|
|
Shake'n bake
|
|
Stevex
Moto GP Alien Joined: 05 Jul 2016 Location: UK Status: Offline Points: 1333 |
Post Options
Thanks(0)
|
Depends on who's doing the recommending; 15w/50 all the way here.
|
|
People say I don't know Jack Sh1t; but I do, he lives next door.
|
|
Post Reply | |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |