Customer Ratings & Reviews

I bought a Seadoo GTR 215 supercharged unit and was looking for oil to complete an oil change. I've had great success with Amsoil in the past in sleds and atvs so I wanted to use in my Seadoo. I had read mixed reviews about using the Amsoil Synthetic marine oil in the supercharged skis due to supercharger clutch slip. But so far I've had no issues after approx 12 hours of riding.

Can't tell the difference.

Oil I could trust running offshore

We run our sea doos hard and this oil has never let us down. For supercharged skis there are no friction modifiers and it's JASO MA2 which is safe for our superchargers. I've been running amsoil in all my products for a while now and won't run anything else.

Good product, quick delivery, nice website, I'm a fan of Amsoil.

Better than Mobile 1. Increased top end, engine runs more smooth at idle. Don't waste your time buying oil from the outboard manufactures, over priced and over rated. Amsoil exceeds Suzuki requirements and will not void warranty. Bought a case, saved on the shipping.

I started using amsoil in my Yamaha because I did not have hour meter to keep track of hours thinking amsoils superior oil would give me some forgiveness if I went a little over recommend hours. I added hour meter, will still use amsoil under preferred customer plan.

I use this in my 50hp 4- stroke and you could immediately tell a difference. It ran much smoother and quieter.

Great marine oil. Use it in the boat and jetskis.

I've added this to my marine inboard motor and seems to be running very well

Outstanding product...

Installed in both of my 8.1L Mercruuser engines on my 40' Boat. Also going in my generator. Hope to get the advertized results.

I have used the 10w40 Marine oil in my Yamaha Waverunner for awhile and to date just great results.

I have ued this in my 115 mercury efi fourstroke and also my 150 efi fourstroke. Now I use it in my Mercury 225 Verado. Best oil to use here in Canada . No more hard starting when the température gets down close to freezing and a great remplacement for Mercury 25-40 semi synthétique oil.

Using it in my third engine with great results. Not a repair one on the first two. Keeps engine very clean.

I like the product, oil seems to be better then YamaLube, Stays clear longer, while YamaLube becomes non transparent and dark grey almost black within 10 hrs. Have AmsOil in high RPM SVHO engine for 35 hrs now and its still clear and light yellow color. However overall purchasing experience was less the pleasant. First, even though the address was correct, they did not ship on time because they could not read the address properly, then the courier didn't know what to do with the package. So because of that it unnecessary took long time to receive the product.

having a $15k investment and protecting it starts with Amsoil. I use it in everything I own an have had ZERO problems.

Works great in my supercharged Sea-Doo. No issues with supercharger slipping, motor runs very smoothly. Will continue to use this.

I use this oil in my 7.4 liter mercrusier motor. Now Amsoil and Mercrusier recommended that I use the 20w 40 synthetic blend. But I wanted full synthetic. This oil is AWESOME!

Use in my 150HP and 9.9HP Suzuki Outboards