GotQuestions? PC-11, The New Engine Oils

Q. How does the lubricity and anti-wear properties of the CK oils compare to the old CI formulations?

In flat tappet applications (such as the 5.9 Cummins ISB), an increase in scuffing potential was observed when transitioning to the CJ formulations with markedly lower zinc and phosphorous. Do the CK lubes address this shortcoming of the CJ formulation, or does the "catalyst friendly" CK formulation make it a non-preferred choice for flat tappet engines?

A. API CK-4 oils can be used in engines with flat tappets. The API CK-4 specification, like the specification that preceded it, does include a testing requirement that ensures protection of flat tappet engines. READ MORE

Author: Shawn Whitacre | Posted @ Tuesday, November 8, 2016 2:49 PM | » Comments(0)

Q. If I don’t purchase HDMOs, would I be affected by PC-11?

A. PC-11 changes are specific to Heavy Duty Diesel Engine Oils. READ MORE

Author: Shawn Whitacre | Posted @ Tuesday, November 8, 2016 12:00 AM | » Comments(0)

Q. Are CK-4 and CJ-4 oils compatible?

A. Yes, they are fully compatible, and there should be no concern if the two are mixed. However, full performance benefits of API CK-4 oils will only be realized when the engine is full transitioned from API CJ-4 to CK-4 READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:15 PM | » Comments(0)

Q. Will OEM’s be issuing their own specifications aligned with these new categories?

A. Yes. It has become very common for engine makers to issue their own specifications which incorporate requirements from the industry standard along with additional OEM-specific requirements to help customers spec oils that are appropriate for use in their engines. In some cases, this involves using the same performance tests, but with more stringent limits. In other cases, new OEM-specific tests are introduced and required alongside the standard tests. This is particularly true for OEM-specifi READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:14 PM | » Comments(0)

Q. How has Chevron been testing these oils under real world conditions?

A. It takes thousands of hours of engine dynamometer testing to qualify new products against these demanding test standards. But at Chevron, we understand that true proof of performance can only be demonstrated by exposing our products to real life customer demands – on the road, on the farm, in the heat of summer and the dead of winter. Chevron and our partners have been testing new PC-11 engine oils in a variety of equipment, both on-road and off-road, to further demonstrate the performance be READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:13 PM | » Comments(0)

Q. Are the new CK-4 and FA-4 oils expected to be more expensive to the customers?

A. There are a number of factors that can influence the price of oil, so it is difficult to generalize. One thing that we understand well is that most of our customers are running a business. Our objective is to understand how their fluid selection best integrates into their operation and how it can positively affect their bottom line. This includes selecting a product that meets the technical requirements of all of the hardware they utilize, as well as considering the potential advantages of lo READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:13 PM | » Comments(0)

Q. How will you determine which oil is right for your equipment?

A. As is the case today, selecting the right engine oil product for your fleet starts with an evaluation of the types of engines (make, model, vintage) that make up the fleet. Your Chevron representative will then be in a position to recommend the products that carry the industry and OEM specification credentials along with the viscosity grade options that meet the engine maker’s requirements. This will be increasingly important with PC-11, since there will be even more choices and new OEM requi READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:12 PM | » Comments(0)

Q. What is the difference between CK-4 and FA-4 oils?

A. The primary difference in the two categories of PC-11 heavy duty oil is with backward compatibility. API CK-4 oils will support virtually all high-speed four stroke cycle diesel engines – including older engines that were using CJ-4, as well as new engines that are currently being developed. Use of API FA-4 oils will be OEM dependent and may not be suitable for use in older diesel engines. This category will focus on the next generation of diesel engines that are currently in development to d READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:10 PM | » Comments(0)

Q. When will the new CK-4 and FA-4 oils hit the shelves?

A. API will allow licensing of these two new standards beginning on December 1st, 2016. We expect API CK-4 products to show up on retail and wholesale shelves by December 2016. READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:09 PM | » Comments(0)

Q. What are the benefits of the new API –CK-4 and FA-4 oils a.k.a. PC-11 oils?

A. The principle goals of the new engine oil categories are to increase fuel efficiency and to help reduce CO2 emissions. However there are REAL performance upgrades that are being introduced as well. These new oils will deliver greater oxidation stability to meet the needs of hotter running engines, benefiting not only the new engines, but also existing engines that are running at very heavy duty cycles. The off-highway segment can really gain benefit from the use of these new CK-4 oils, which READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:08 PM | » Comments(0)

Q. What role does low viscosity PC-11 Oils play in regards to fuel economy?

A. While high film thickness oils have been used for a number of years, lower viscosity has become a bigger focus given the need for enhanced fuel economy. The fuel economy improvement that can be expected from using lower viscosity oils depends on the engine type and duty cycle, and with the oil that is selected. Compared to conventional API CJ-4 SAE 15W-40 oils, studies have shown that fuel economy improvements of 1.5% or more can be achieved when oils like those that will be licensed as API F READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:08 PM | » Comments(0)

Q. Why do we need two new categories of heavy duty engine oils?

A. In 2010, the U.S. Environmental Protection Agency and National Highway Traffic Safety Administration (NHTSA) announced regulations designed to reduce greenhouse gas (GHG) emissions and mandate fuel economy improvements for medium and heavy-duty engines and vehicles. The new regulations would be phased in between 2014 to 2017, imposing different fuel-efficiency targets based on the size and weight of vehicle/equipment types. Diesel engine design is undergoing a period of significant change to READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 12:05 PM | » Comments(0)

Q. Why do we need a new heavy duty engine oil category?

A. In 2010, the U.S. Environmental Protection Agency and National Highway Traffic Safety Administration (NHTSA) announced regulations designed to reduce greenhouse gas (GHG) emissions and mandate fuel economy improvements for medium and heavy-duty engines and vehicles. The new regulations would be phased in between 2014 to 2017, imposing different fuel-efficiency targets based on the size and weight of vehicle/equipment types. Diesel engine design is undergoing a period of significant change to READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 10:29 AM | » Comments(0)

Q. Is PC-11 just for the On-hwy segment and is it relevant to off-hwy?

A. PC-11 will offer improvements to engine oils that are important for diesel engines of all types, even off-highway! With improved oxidation stability, wear performance and shear stability, PC-11 oils will deliver additional benefits to customers around engine durability, oil drain interval extension and a wider range of products formulated for a wide range of off-road applications. READ MORE

Author: Shawn Whitacre | Posted @ Thursday, September 29, 2016 10:26 AM | » Comments(0)

Previous||1||Next

Author Bio

sponsored by

Shawn Whitacre

Senior Staff Engineer

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.

Newsletter

We offer e-newsletters that deliver targeted news and information for the entire fleet industry.

GotQuestions?

sponsored by

ELDs and Telematics

Scott Sutarik from Geotab will answer your questions and challenges

View All

GotQuestions?

Sleeper Cab Power

Steve Carlson from Xantrex will answer your questions and challenges

View All