Increased Corrosion Protection with CamGuard Marine

There is nothing more satisfying than being out on the water with a boat full of friends, or fishing off shore on a warm summer’s day. Those memories live on even through the winter when your boat is safely tucked away in storage. The life of a boat owner is full of ups and downs. There is an endless battle with maintenance, corrosion, and seasonal preservation rituals. Finally, boat owners can gain some peace of mind when it comes to protecting their engines. CamGuard Marine was designed to specifically address the engine headaches boat owners face year-round. Now you can capitalize on the most cutting edge lubrication science available to protect your marine investment.

CamGuard Marine is a blend of high performance additives that fortify gasoline and diesel marine motor oils to provide the utmost in engine protection. The latest marine-specific engine oil formulations are at best a compromise due to cost, and new oil specification delays. Cost pressures lead to reduced additive concentrations as well as the inability to utilize the latest additive technology, both of which lead to less than optimum performance.

CamGuard Marine delivers uncompromised performance using the most advanced additive technology available to prevent corrosion, dramatically reduce wear, reduce friction, protect seals, and decrease deposit formation within the engine.

CamGuard Marine Prevents Corrosion – CamGuard contains powerful multi-metal corrosion inhibitors that prevent rust and corrosion. This is essential for all boat engines subject to sporadic or seasonal use and is highly recommended when undergoing winter storage.

CamGuard Marine Reduces Wear – CamGuard contains advanced anti-wear additives that provide a dramatic reduction in wear when compared to current ZDDP (zinc) containing oils. This improvement in wear performance is especially important in older engines designed using flat tappet valve trains and today’s marine oils. An additional benefit of reduced wear is less iron in the oil. Excessive iron in the oil promotes the formation of sludge. CamGuard Marine provides excellent anti-scuff protection during “dry starts” when the engine has been sitting unused.


CamGuard Marine Reduces Friction – CamGuard utilizes the latest generation of friction modifiers that provide a measurable increase in fuel economy throughout the oil change interval.

CamGuard Marine Protects Seals – CamGuard contains seal conditioners that nullify the effects of heat and time to keep seals supple, flexible, and performing like new.

CamGuard Marine Decreases Deposit Formation – CamGuard utilizes advanced antioxidants to prevent cylinder varnish and ring belt deposits. This is particularly important with the “trolling and/or high power cruise” duty cycle of marine use.


CamGuard Marine is available in an 8oz bottle.
Each 8oz bottle will treat one oil change.*  Add at each oil change. Available at many fine dealers. Download Brochure



Three of the top selling marine oils were tested for corrosion resistance both with and without the addition of CamGuard Marine. The testing was performed at an independent laboratory utilizing the DIN 50017 procedure in a humidity cabinet. The DIN 50017 test demonstrates excellent field correlation, unlike the often used ASTM 1748 humidity cabinet test.

[Click on the images for a larger view] The graph indicates the average number of days until failure, which is defined as the observation of three 1mm spots of rust on the steel test panels. The red bars indicate time to failure for the untreated oils while the blue bars represent the corresponding oils with the addition of 5% CamGuard Marine. While all the oils made the claim of preventing rust, they all performed poorly. By comparison, all the oils show a remarkable improvement with the addition of 5% CamGuard Marine.

The CamGuard Story began with CamGuard Aviation
which was developed as an ultra-high performance aviation product.

[Click on the images for a larger view] The photos above are pistons removed from two different Lycoming IO-540 aircraft engines. The piston on the left is from our FAA certification engine using CamGuard for 500 hours. The certification test was in an aerobatic aircraft that utilized very high power settings resulting in extremely high temperatures. The piston on the right was taken from a non-aerobatic aircraft engine that was flown at typical cruise power settings, without CamGuard, for 500 hours. The difference in deposits is striking. Because of this extraordinary experience, we expanded the CamGuard family to include other applications.  To learn more about why CamGuardAviation was created click here.

*Read product label for specific usage instructions.


CamGuard is the only lubricant product to undergo certification testing in the extremes of aerobatic use and the first product ever tested at large public gatherings. During certification nearly one million people witnessed CamGuard in action at air shows throughout the US.