Just did the 100 hr service on my new Yamaha VF90. I read and researched for weeks before deciding what brand oil to go with. I went 10w-40 because sometimes I’m running hard in +100° temps. From all the research I did on this oil, I have no doubt that it will fulfill my expectations.
I have been using Amsoil in my Harley for year. I bought a seadoo this year and it was a no brainer for me to check the Amsoil site to see if they have an oil for it. They did not disappoint. Excellent product and highly recommend it. A friend of mine just bought a new seadoo. He called me up and ask about the first oil change. I told him to get the Amsoil. We did our oil changes together and love the product.
Hands down the best decision you can make for your seadoo
For the same price as conventional Yamalube, I'm running what has always been considered the gold standard of oils. My boat feels quicker, it *is* more fuel efficient, and after 50 hours it still looks brand new.
I'm sold.
Looked for this product everywhere. Finally sourced it from Amsoil. Using it in my Suzuki 50hp marine engine. Fine product. Will definitely use again.
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Great oil
By 
PHILLIP, 
a 
Verified Buyer 
on 
November 03, 2022
Great oil, picked up an extra 2 mph on my Suzuki DF90. Synthetic is the way to go in outboards especially if you operate in saltwater. Motor was super quiet and ran smooth.
Have used the Amsoil marine products in my last two Yamaha SHO outboards (150 and 225). The oil shows minimal discoloration and wear even after a full season on the water, in addition it meets all of Yamaha's standards for oil per their manual. My boat is used from March to Nov and I never worry about drastic cold or hot temps impacting engine performance when running Amsoil.
Used it on my salt water engine for 3 years. Worked well
Bottom Line
Yes, I would recommend this to a friend.
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5 star rating
Excellent Oil
By 
TIM, 
a 
Verified Buyer 
on 
June 14, 2022
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.
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