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Marine SAE 15W-40 CK-4 Oil

Lucas Oil Marine SAE 15W-40 CK-4 Oil is blended with premium base oils and Lucas additives. You can expect less oil consumption and reduced engine wear. It resists oxidation and thermal breakdown for total protection in new and older marine engines. Provides increased lubricity, lowers oil temperature, reduces engine noise, increases oil pressure and reduces soot levels. Suitable for use in gasoline and diesel powered engines.

Recommended for all engines specifying SAE 15W-40 heavy duty oil, CK-4 and previous, including CJ-4, CI-4+, CI-4, CH-4, CG-4, SN and SM; and European and OEM specifications: ACEA 9, Mack, Volvo, Caterpillar, Cummins, Detroit Diesel, Daimler, MAN, Renault and Ford.

Key Benefits

  • Less oil consumption and reduced engine wear
  • Resists oxidation and thermal breakdown
  • Increased lubricity
  • Reduces engine noise
  • Reduces soot levels
 

Packaging

#10991 1 Gallon (Case of 4) 32 lbs
#10807 55 Gallon Drum 440 lbs
 

HEAR IT FROM OUR CUSTOMERS

It helped my 2003 Mazda MPV van perform better.

Came to your site and found out about Complete Engine Treatment, so I got some of that too!! It helped my 2003 Mazda MPV van perform better. Thanks much.
Ed G.

Whether I’m chasing Trophy Game animals or chasing Trophy Fish Lucas Products are running with me

My name is Jim Klinkner the owner of Klinks Premium Wildlife Blend. I'm a firm believer in Lucas Products. I use Lucas Synthetic Outboard Marine Oil in my Bass Boat and I use Lucas oil in my ATV's. I depend on Lucas Products whether I'm chasing Trophy Game animals or chasing Trophy Fish Lucas Products are running with me. My machines seem to love Lucas Products better than the rest. Less plug fouls, less smoke the machines running better and smoother. Thanks Lucas
James K., Dairyland, WI

It was like riding a completely different bike.

I have a 2008 Harley Dyna Street Bob which has been completely customized to include engine work, custom exhaust and multiple dyno tuned sessions. The motor has 31k miles on it. The engine has always run extremely hot and destroys any oil thats in it in less than 2000 miles. This past weekend, I decided to switch over and try Lucas Oil and added 6 oz of Motorcycle Oil Stabilizer to the fresh oil. The bike is extremely quieter now (always had a sewing machine noise) and runs significantly cooler. It was like riding a completely different bike. I am sold. This stuff rocks.
Daniel F.

In 2 days my steering is back to normal. Honest.

My '06 Ford Freestar was gradually getting harder to steer. No leaks and a tight belt so no slipping. I emptied as much fluid as I could and added a bottle of Lucas Power Steering Fluid and Conditioner which the bottle says eliminates hard spots.. in 2 days my steering is back to normal. Honest. It worked for me and its been 3 wks now. A garage near me gave me a price of $569.00 for a new rack installed. I lucked out. For $10.00 a bottle it was worth a try. I'm very happy.
Frank D., Waterford, NY

Lucas is SERIOUS about what they sell.

After checking my Power Steering Fluid on my Kia Spectra, I noticed the level was low. Bought the Kia new and its now 4 years old. I decided to drain the rest of the power steering fluid and replace with Lucas Power Steering Fluid purchased at Auto Zone. What a noticeable difference in steering! Price was a few dollars higher and I would spend a few more knowing Lucas is SERIOUS about what they sell. 100% would recommend Lucas Power Steering Fluid.
Gene Zeier Jr., Richmond, TX

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