PC-11 For Off-Highway: Eliminating pain points and embracing the full benefits of this new oil category

by on May 4, 2016 0 Comments



While we’ve been telling you quite a bit about the new PC-11 engine oils for some time, we wanted to focus on the possible pain points for off-highway equipment users, as well as how customers will benefit from the new CK-4 oil.

As a reminder, PC-11 is for both On- and Off-Highway heavy-duty diesel engines and there are two subcategories of the new oils. API CK-4 oils are backward compatible with previous generation oils and meet the needs of new engines, as well as engines calling for earlier API commercial categories, while API FA-4 oils are for the next generation of on-highway heavy-duty diesel engines that will be introduced in 2017.

PC-11 oils in both categories are required to pass nine fired engines tests to meet the newest API standards. Included is the Volvo T-13 oxidation test and the Caterpillar Oil Aeration Test (COAT).


Possible pain points in off-highway operations

Those stringent tests help assure off-highway equipment users that the new CK-4 oils address any possible pain points.

For example, the aggressive 360-hour Volvo T-13 evaluation of an oil’s propensity to break down at high operating temperatures, which are common in off-highway operations, means CK-4 oils are not likely to thicken, foster corrosion and generate harmful deposits. Similarly, the COAT test helps assure users that CK-4 oils are designed to reduce the likelihood that problematic air pockets will form in the oil, which can be detrimental for engines.

Construction sites thrive on ensuring their equipment is up and running efficiently, as unscheduled downtime subtracts from the bottom line. But severe-duty off-highway operations present unique and demanding challenges, including the need for equipment that may be called on to operate for extended periods of time. In a typical construction and mining operation for example, the average work schedule for an excavator can be as many as 150 hours a week.

That heavy workload and the need to idle equipment, sometimes in very hot weather, can lead to higher than normal oil temperatures. That in turn reduces the oil’s ability to protect engine components and may lead to equipment failure. API CK-4 oils are designed to protect diesel engines in exactly such a demanding environment.

API CK-4 oils build on the protection levels afforded by their predecessor API CJ-4 products. The new API CK-4 category oils will be available in a range of viscosities and will have the same conventional, syn-blend, and synthetic options that are available today. That’s important for meeting fuel efficiency needs and for operations that have to address cold weather startability issues.


Benefits of CK-4 oils

With all the necessary elements in place to provide highly effective engine protection capabilities in off-highway operations, CK-4 oils also may bring about an advantage in terms of drain intervals. In fact, OEMs are already testing API CK-4 in the off-highway space, and the results show that there may be the possibility to nearly double current drains intervals. API CK-4 is a part of making that happen, along with other maintenance and operational measures.

When they hit the market in December 2016, API CK-4 oils will bring direct and ancillary benefits to off-highway equipment operations. This oil will offer improvements that are just as important for off-highway diesel engines, as API FA-4 oils are for on-highway equipment. You can be confident that API CK-4 oils will stand up to the demands of off-highway operating conditions in some cases even more effectively than current oils.

To learn more about CK-4, get all the latest news and information at: www.PC-11Explained.com 


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About the Author ()

Shawn’s career spans nearly 20 years focused exclusively on research and engineering dealing with heavy-duty engine lubricants, fuels, and materials. Before joining Chevron in 2013, he spent 12 years leading global fluids and materials engineering activities for Cummins. He also spent five years conducting lubricant, fuel, and emission research for the Department of Energy’s National Renewable Energy Laboratory in Golden, CO. At Chevron, he is a Senior Staff Engineer primarily responsible for product formulation of the Delo Brand of Heavy Duty Engine Oils. He is currently the lead formulator responsible for development of Chevron’s PC-11 product line upgrade. Whitacre is the new chairman of the ASTM Heavy-Duty Engine Oil Classification Panel, which is tasked with the final development of the Proposed Category 11 (PC-11) requirements that take effect in late 2016.


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