Good product

Delivered in 2 days. Great service. Oil is in the boat engine. 2nd change. 1st for Amsoil. Time will tell how well it works.

Best oil money can buy!

I have used Amsoil products for as long as I can remember in all of my equipment and personal vehicles and vessels nothing beats Amsoil.

Thanks Amsoil

Used it on my salt water engine for 3 years. Worked well

Simply the best protection you can buy for any watercraft. I think I actually got a slight bump in less fuel consumption with this product too. I run Amsoil in everything I own. Great oil with always superior performance.

wonderful oil for my Suzuki outboard, never had any problems with this oil

The brand I believe and trust in.

I believe Amsoil oils are about as good as you can get, alwsys been happy with the quality of their oils for many years, have used them in automotive, marine, motorcycle, and misc applications without a single related problem or issue, will continue to use only their oils in all my applications

In use this oil in my smaller kicker motors and it is great

Highly recommend using Amsoil . I use it in all my outboard motors and diesel truck for over 10 years now. Phenomenal Oil . Awesome Customer Service

Oil used in 9.9 hp Pro Kicker Engine trolls all day with no problems and little wear

I switched the oil in my boat to Amsoil 10W40. I have noticed that the motor runs more smoothly and temp has lowered a bit. I should of done this along time ago. Great product!! I’m in the process of changing all my equipment over to Amsoil.

The best oil for my Yamaha that I have used. Put Amsoil in all of my toys. Harley, Rzr, Tundra, Corolla, & Silverado.

Great oil. Never had given me a problem. I use it in a Yamaha 150 outboard and I have experienced no oil consumption and my motor runs quiet and smooth.

The marine 10-40 synthetic oil is absolutely the best oil I've ever used. No doubt the best.

I have run my 225 hp Honda engines now with 1000 hrs. 16 years with Amsoil..they run like new

I've been using Amsoil as far back as 1996 in car's boat and small engine's . two and four cycle and Hell I even use it in a modified dirt car oil's lube's tranny fluid gas treatment's . and for those of us the live in sub zero climate the product's stay pliable every thing starts easier . When rebuilding the engine they are clean and cylinders still hash marks from honing yet. I'm sold , I've been wrenching for year. Keep up the good work and keep America running strong.

I bought a new four stroke outboard and the mechanic said if it was his new engine he would use synthetic oil. I replaced the breaking oil with Amsoil and I noticed it ran smoother and quieter. Love it