I called Amsoil and asked about this many years ago. They said for *my* bike, with the 5 speed tranny, they recommended the same 20w50 in all 3 holes.
Reviews of AMSOIL parts For Business
USA
I run the 5w-40 amsoil diesel oil in mine. No issues whatsoever.
My GT350 gets Amsoil. Had no issues with either one.
Using the same oil but 15W50 for Himalayan. Satisfied with the performance. Even after long rides, the engine feels crisp.
used Amsoil 5w20 last oil change and just did an oil change at ford with motorcraft due to my poor planning… typewriter tick is back with this oil. Didn’t have that at all with Amsoil.
Having recently transitioned from Motul 7100 to Amsoil Metric 10W40 for my Yamaha MT 15, for about 4000km I sought an oil that could deliver reliable engine protection and smooth operation. here are my pros and cons
I have used the Amsoil Premium diesel oil and filters for the last decade, changing them once a year, and my truck is doing just fine.
I use amsoil oil and amsoil filter
As an avid amsoil user I am bought into the brand. Every product I have has made my equipment run better. I run a small farm and have amsoil in every fluid in all of my vehicles. If you are in the preferred deal it really isn't that much more expensive than regular oil.
My L5P doesn't tick with amsoil. My 5.3 you can't hear the lifters with amsoil. I have a 5.3 that has 300k on it and never had a motor problem with it and it has been pure amsoil since 35k miles.
I have a 2017 1500 5.7 that’s had nothing but Amsoil SS 0W-20. Purrs like a kitten. I have done multiple used oil analysis on all my family’s vehicles. They all use SS OW-20 and the analysis come back with very positive results. I will never use anything other than Amsoil.
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