Engine oil AMSOIL or IDEMITSU

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

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 am of the mindset of using oil from the region. my GTI is a german car and gets liquimoly, a german oil. my toyota/subaru is Japanese, Idemitsu is a japanese oil (and the oem supplier for Subaru). i have 5w30 in it now.

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.

At 156k after cam/lifter replaced I started doing DIY Amsoil changes. At 255k I put in a crate engine. If Amsoil made a difference it got the bottom half of the engine to 250k miles from 156k so about 13? oil changes. I think the cost difference is minimal so yes, I think it was worth it. Delaying $10k for new engine is the goal.

Mopar oil filter, amsoil 0w20, don’t over torque filter housing.