Engine oil MOTUL or AMSOIL

Amsoil 10W-30 Signature Series here. It's on the expensive side but it's 100% synthetic, tests great, and made in the USA.

I have ran Amsoil since day one on my 2016. I change oil once a year currently sitting at 156,000 miles, no issues knock on wood.

Been using amsoil for a little over a year now and it's really quiet.

Amsoil. My s2k burned just about every oil when I beat on it until I started using Amsoil.

Motul 8100 stopped all oil burning issues I had in my Subaru Turbo. Mobile 1 would just burn off and I had to constantly add oil

I changed my engine oil at 5k km on my own because the bike felt shit to drive, heating up too much + shitty mileage, my guess is that RE uses an improper grade or bad quality oil, i used the motul 10w50 fully synthetic oil, it's an immediate and huge improvement, mileage, heating, smoothness, clutch, everything improved, and I'm not even exaggerating.

Would be better to use a quality full synthetic instead. Motul 7100 is very popular but there are other options. I'm thinking about giving the Shell/Ducati oil a try.

Any major brand of the correct rating and viscosity will work.

That being said, I have an 05 that was used as a DD for 12 years. Short trips, 3 days a week. After 12 years and 47K miles, I added a aftermarket supercharger. Put another 20K on it, including trips to the drag strip and track days.

I then had it rebuilt with forged internals because I wanted higher boost and more power. When the engine was pulled apart and measured. There was no wear. The cylinders were still within factory specs as was the crank.

I had used Amsoil SS 0W-20 the whole time.

Well if you ride a dirtbike i might not reccomend it i use motul 7100 10w50 i belive it isnt rly expensive and its a good oil most of the local racers use it including me.

Amsoil in everything I ever owned. My 2017 RAV4 hybrid is sitting on 350k miles and still running strong.