Switched to Amsoil 25-40 in my Mercruiser 454. It seems to hold better oil pressure than other oils Iβve used. I would recommend this oil.
Bottom Line
Yes, I would recommend this to a friend.
3
Great Oil lousy Shipping
By 
Glen, 
a 
Verified Buyer 
on 
September 23, 2019
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.
5
Great value
By 
Bryan, 
a 
Verified Buyer 
on 
July 17, 2019
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!
Bottom Line
Yes, I would recommend this to a friend.
Your browser is outdated.
Thank you for visiting www.amsoil.com. Certain parts of this website may not function with Internet Explorer. To continue shopping with us, please update your browser using one of the options below.