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AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil

Product code : WCMQT-EA

4.8 star rating Read 30 reviews

Customer Rating

4.8

83% would recommend

  • 5 27
  • 4 1
  • 3 2
  • 2 0
  • 1 0

AMSOIL 25W-40 Synthetic-Blend Marine Engine Oil

4.8 star rating Based on 30 reviews
  • 5 star rating
    25W-40 Marine oil
    By  KIERAN,  a  Verified Buyer  from  Long Island NY  on  November 23, 2024
    Used this oil in my Mercruiser 350's for 1 season So far so good . Better value than mercruiser's oil and easy to locate and buy. Definitely using from now on.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Excellent and good price
    By  STEVEN,  a  Verified Buyer  from  Quebec  on  November 01, 2024
    Very good Martine engine oil for mercruiser engines, only upgrade that could be made is having 1 liter bottles instead of 1quart
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Makes the Merc purr
    By  BRIAN,  a  Verified Buyer  on  October 29, 2024
    Good quality oil
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Equal or superior
    By  TIM,  a  Verified Buyer  on  May 10, 2024
    Seems on par or superior to mercury oil. Will see next year when I change it but maintaining warranty and half the price of the alternative and a brand I trust is with the try.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great product. Excellent customer service
    By  WILLIAM,  a  Verified Buyer  from  Mississippi  on  June 08, 2023
    Seems to perform better than oem oil. Fast shipping.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    It turned up and I put it in the boat
    By  Candid ,  a  Verified Buyer  from  Peterborough   on  May 28, 2023
    It is impossible for me to rate the quality and performance of this engine oil as it would require equipment, technology and scientific knowledge that I do not possess. The only thing I can say is that it turned up and I put it in the boat. Anything beyond that would be speculation on my part (Rating - I don’t know; Would I recommend- I don’t know). If Amsoil wishes I can send them a sample of the oil at the end of the boating season and they can run the appropriate tests to determine if the oil is still functioning to their specifications. Review complete!
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Excellent
    By  ALEX,  a  Verified Buyer  from  B.C.   on  May 24, 2023
    Originally I was using too light of an oil and I went to this 25W40 and was very happy with the oil pressure increase and now it doesn’t seem to go through any oil. Big block Chevy
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 3 star rating
    Oil and Oil fileter
    By  TOM,  a  Verified Buyer  on  May 19, 2023
    The oil is awesome. Customer service SUCKS! I called and asked 3 times on the live chat to get info for an oil filter for my Merc Pro XS 150.....NO RESPONSE!. Check your owners manual and then go a Merc rep to get the oil filter. Apparently AMSOIL doesn't update or do any type of referencing when looking up parts that we can service ourselves
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    BEEN USING THIS 25W-40 SINCE it has been offered
    By  MICHAEL,  a  Verified Buyer  from  Long Island NY.   on  March 09, 2023
    Great Oil. Have used it on my 1998 7.4 MPI Bravo 3 since it was first offered. Very little oil consumption. No smoke; engine have been running great with good oil pressure at idle at operating temperature.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Security on the water
    By  JEFF,  a  Verified Buyer  from  Colorado  on  November 23, 2022
    We've used Amsoil in both of the boats we've had and neither one ever had any issues. They quietly fire right up and purr like a kitten going across the water. I'll never use anything else.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best you can get
    By  ERIC,  a  Verified Buyer  from  Vermont  on  August 16, 2022
    I trust all of Amsoil products and I am using this in my Mercuriser IO cheaper than Quicksilver and I'm sure its a much better oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great stuff!
    By  JOHN,  a  Verified Buyer  on  May 06, 2022
    Engine runs smooth.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Marine Oil
    By  BRIAN,  a  Verified Buyer  from  Granum Alberta  on  April 14, 2022
    My 150 Merc runs smooth and and cool
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 4 star rating
    Becareful, this is a blend!
    By  Nate,  a  Verified Buyer  on  November 23, 2021
    Not pure synthetic as the name states, its misleading because this is a synthetic blend not %100 pure.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great oil!
    By  JEFF,  a  Verified Buyer  from  Highlands Ranch, CO  on  November 01, 2021
    We've used this oil in our previous boat and our current boat. Our old boat had the 4.3 V6 in it and the new one has the Mercruiser 4.5 V6. We've never had any engine issues with either boat. They both had good oil pressure with no engine noise aside from the expected. Even after it sits for a while I've never heard any lifter noise or anything like that when I first fire it up.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    8.1 mercruiser - 1300 hrs
    By  CHRISTOPHER,  a  Verified Buyer  from  Tampa   on  October 22, 2021
    Best oil marina oil on the market. Using oem oil my engines would burn oil every trip . Changed to amsoil instantly stopped consuming oil. Also holds better oil pressure .
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Amsoil Marine Engine Oil
    By  JOHN,  a  Verified Buyer  on  September 23, 2021
    Good quality ... great price, came quickly
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  • 5 star rating
    25W-40 Synthetic Blend Marine Engine Oil
    By  Eugene,  a  Verified Buyer  from  NY  on  August 21, 2021
    Good lubrication properties and strong oil film. Easy start. Recommend.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    25w-40-synthetic-blend-marine-engine
    By  JAMES,  a  Verified Buyer  from  Ontario Canada  on  July 26, 2021
    Great product. Use it in my 1982 FORD 351W with an Ea015, AMSOIL oil filter. Orders are delivered next day. Great service.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Best
    By  CHRIS,  a  Verified Buyer  from  Michigan   on  November 28, 2020
    Can’t find a better marine oil then this one 👍🏻👍🏻
    Bottom Line
    Yes, I would recommend this to a friend.
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