I have only been using this oil for a year now but it's fully synthetic and a reasonable price

Great product all my river boat buddies run this oil and Love it 👍🤝

Excellent oil if you have a 2-stoke outboad. Low smoke, non-fowling. Hard to find marine 2-stoke synthetic oil anymore.

Running in my 150 Etec for the past 80 hours with no issues!

Solid product that is dependable, especially in salt water. Very satisfied with the quality.

No other oil will go in my Yamaha 250 outboard or my ford F-350.

Changed to this oil from Optimax oil. A huge difference in performance , easier start up and cleaner burning. Love this oil !! Kevin

Use this in both of my mercury outboards, neither has any issues. Both are oil injected

I've trusted amsoil since the 70's and I trust them now.

Great oil, motors with 1350 hours have perfect compression and plugs last a long time without fouling. Used this oil since engines were new.

Great oil. Run it in my Mercury Optimax Pro XS 250 for several years with zero issues.

…..really???

I was told about this oil by a friend that has racing outboard's and built them and I thought he was joking about it!! I tried it out a couple of year's ago and he was absolutely correct and have been using it ever since and will continue to use it!!

Great service. Fine product.

Love the stuff. 20-year-old 2 stroke engines barely smoke. Engines run clean and quiet and smell free.

10 years of service on my 1999 (rebuilt powerhead, 2012) and no mechanical failures...even at 100:1... enough said

Just a great product. No smoke, clean plugs, 2018 Evinrude Etec 250 runs like a champ! As it should!

I have used HP marine oil for many years in my finicky Johnson 115hp. Last year I tried a different oil and had many problems. After 600.00 in” diagnosis , they said it probably needed a new computer. I took it to a local small engine/ mechanic ( who is a true mechanic) it was the oil. Now a Hp marine oil for life

Been using HP Marine for many many years. Couldn't ask for a better value. Burns clean, protects well and is very affordable.

I like the peace of mind that comes with Amzoil protection. I run this product in my lean burn Mercury Optimax and feel confident there will be no lubrication and wear issues on this engine. I have used Amzoil products through the years in my air/oil cooled BMW motorcycles with great results. Amzoil is the only product in the motorcycles that doesn't cook off, even in the Texas heat.