Great product. Use it in my 1982 FORD 351W with an Ea015, AMSOIL oil filter. Orders are delivered next day. Great service.

Can’t find a better marine oil then this one 👍🏻👍🏻

Very dependable oil use in my 150 merc

Switched to Amsoil 25-40 in my Mercruiser 454. It seems to hold better oil pressure than other oils I’ve used. I would recommend this oil.

This is some of the best oil available for Mercruiser engines that I have ever used. The three star rating is for the shipment. Half the bottles were leaking oil from the caps. Enough to soak thru the boxes. Neighbor had the same problem with motor oil delivery.

Great value

We use this product for a 60HP Mercury 4-stroke outboard motor. Love the product, and it is a great value also!

switched over from mercury oil to this...amsoil is the only oil I use for everything

Switched my marine big block over to Amsoil 25w-40 and have seen better oil pressure and increased performance over 30w oil. I'll definetly use this oil again.

I purchased tis for my mercury, and i cant say enough about it, I have enjoyed using the amsoil product in everything i have and i will continue the use of it

I ran this in my mercury optimax 125. It ran cleaner and smoother than when running on the mercury oil!