COS Blog
COS Blog

COS Blog

Information about Central Oil Supply and all of its divisions.

Making the Switch: Reasons you should be Using T6

Jennie McRae - Monday, April 27, 2015

There’s a new Rotella in town, and we’re not talking about TTP.

You read us right—Shell has a newer version of Rotella that is a full synthetic heavy duty oil with advanced multi-functional, low-ash additive technology to help add protection that will continually adapt to your driving conditions.


Rotella T6 delivers 34% better wear performance on average compared to the previous API CI-PLUS 5w40 formulation. In seven out of seven industry-standard, diesel wear test measurements, Shell Rotella T6 outperformed the previous formulation.


A problem you probably don’t realize you’re having in your HD engine is blocked particulate filters. This can increase fuel consumption. T6 is formulated to help maintain the efficiency of the latest vehicle-emissions technologies. Not to mention—the use of low-viscosity synthetic base oils further energize the oil’s protective capability that promotes fuel-economy performance with absolutely no compromise in durability. This new Rotella is also:

  • Extended-drain capable

  • Energy saving –fuel economy performance

  • Excellent engine cleanliness and wear protection

  • Excellent extreme high/low temperature protection

  • Improved low-temperature flow

At Central Oil & Supply, it is our mission to help you operate smoothly. We carry the full line of Rotella products to better serve you in your industry. For more information on Rotella T6, and what it can do for you (including how much money it can save your business!), call one of our sales specialists at 1-800-883-8081.


Sources: http://www.shell.com/rotella/products/t6.html

PC11: What It Is and What It Means to You

Jennie McRae - Monday, April 20, 2015


In 2010, the National Highway Traffic Safety Administration (NHTSA) announced some major changes that would come our way to help us reduce the levels of greenhouse gas emission of trucking fleets around the country. This new PC (Proposed Category) 11 regulation is being driven by changes to fuel economy and emissions regulations that have been set forth by the EPA. You’ve been hearing about PC11 because this is to be phased in between 2014 and 2018, and these new regulations will impose different fuel-efficiency targets based on the size and weight of vehicle types. The vehicles impacted by PC11 are: ON-Road vehicles, including combination tractor & trailers, pickup trucks, buses, vans, and vocational service vehicles.


There will be two categories of HDMO oils to meet these specs. PC11A will be backward compatible with API CJ-4 and API CJ-4 PLUS oils, and PC11B will define new low temperature oils in the HDMO sector. These will NOT be backward compatible with API CJ-4 and API CJ-4 PLUS oils. These new oils will most likely be recommended by OEMs for use in 2017 model diesel engines to take advantage of improved fuel economy. We can most likely expect to see this new category of API in March of 2017.


Rather than seeing PC11 as another regulation you have to begrudgingly follow, we see it as opportunity for some positives in the Heavy Duty Motor Oil Space. Here are a few:

    • PC11 will provide improvements in shear stability, aeration, adhesive wear, oxidation stability, and fuel economy for your heavy duty engine or fleet.

  • PC11 will protect while also strive to improve fuel economy though the progression to lighter viscosity oils

  • These new PC11 oils will not only help to protect us from harmful emissions, but they will also be designed for unmatched engine protection and performance

If you have any questions about PC-11 and what that means for you, please contact one of our expert sales specialists at 1-800-883-8081. Central Oil & Supply is dedicated to keeping you in-the-know. We will keep you informed as more information comes out on PC11 and how that will affect you and your business.


Sources: http://www.shell.com/rotella/products/proposed-category-11-updates.html; http://www.delolubematters.com/2014/11/05/explaining-the-new-pc-11-oil-categories/#sthash.RsvH3JVH.dpbs; http://www.deloperformance.com/expert-knowledge/proposed-category-11.aspx

Passion for our Products: Castrol Brand History

Jennie McRae - Tuesday, April 14, 2015

 Castrol is a leading manufacturer of premium lubricating oils, greases, and related services to automotive, industrial, marine, aviation, oil exploration, and production customers across the world. Headquartered in the UK, the company operates directly in over 40 countries and employs approximately 7,000 staff worldwide. And, in nearly 100 other markets, Castrol is represented by third party distributors who market and sell their products locally.


Castrol was founded by Charles “Cheers” Wakefield under the name of CC Wakefield & Company in 1899, when he was 39. Wakefield had just left his job at Vacuum Oil to start this new business in Cheapside, London. Wakefield had a particular passion for motorcycles and airplanes, so this new company started manufacturing oil specifically for these types of engines that needed oils that were runny enough to work from a cold start-up. The trick was that they also needed to be thick enough to keep working at very high temperatures. Wakefield researchers eventually found that adding a small amount of castor oil made from castor beans to the oils did the trick nicely. They called this new product “Castrol.”


By 1960, after many sponsorships and attempts to break the land speed record with his new type of oil, it became apparent that the “Castrol” name had eclipsed the company’s original founding name. It was then that CC Wakefield & Co became Castrol Ltd.


Over the years, the Castrol brand has helped some of the most powerful and iconic engines across the world. The QEII (Queen Elizabeth II), the world’s largest ocean-going passenger liner in 1967, was powered by Castrol Lubricants. And more recently, when NASA’s curiosity rover began its exciting mission on Mars in 2012, a Castrol industrial grease played a central role in the smooth operation of the mission.


Castrol attributes the success of its company over the years to its founder, Charles Wakefield. On their website, they state that “he drew on the help and encouragement of his customers in developing his new Castrol Oils, because he had the foresight to see that working in partnership was the best way to achieve success for both parties.” For more information on what Castrol products we carry, and which are best for you, please call 1-800-883-8081 to speak with a regional sales specialist. For more information on the Castrol brand, please visit: http://www.castrol.com/en_us/united-states/about-us/history.html.

All About Transmission Fluid

Jennie McRae - Monday, April 06, 2015


As vehicle owners, we all know that transmission fluid, or ATF (Automatic Transmission Fluid--specifically used in self-shifting automatic transmissions), is important to our vehicles. And not only is it important to be mindful of our transmission fluid, but choosing the correct one is imperative to the health of our engine.


But first: what exactly is transmission fluid, anyway?

Put simply, transmission fluid is oil for the transmission of your vehicle. Pistons and bearings aren’t the only parts of your engine that need TLC: since the transmission in your engine is responsible for controlled application of power, it needs special attention, too!


There are two main types of transmission fluid: Dexron and Mercon. Dexron is the trade name for a group of technical specifications of ATF created by GM. The original Dexron transmission fluid was introduced in 1968, and over the years, newerversions of the fluid have been released. (This explains the numbers that always follow the name i.e. Dexron III.) Mercon is the ATF that was created by Ford Motor Company in the 1990s, and similarly to Dexron, the number that follows the name of the product indicates when that fluid was released.


Your vehicle owner’s manual will tell you which one to use, and it is very important that you follow the instructions set forth by your OEM (Original Equipment Manufacturer). Within each type of transmission fluid, be it Dexron or Mercon, you will have the option of using a synthetic or conventional fluid type. And just like synthetic oils are better for your engine in higher temperatures and in overall performance, the same goes for your transmission fluid. However, in some cases where the engine is much older, it is better to stick with a conventional fluid type.


Something else to note is that the transmission fluid in your vehicle should be changed at (about) every 24,000 miles to 36,000 miles (source: autos.com). This translates to about every 2 to 3 years. But just as your owner’s manual should have information on what type of fluid to use, it should also tell you how often to change the transmission fluid. When it is appropriate to have your transmission fluid changed, be sure to get a transmission flush and don’t skimp on getting a new transmission filter.


At Central Oil & Supply, we offer several different brands of transmission fluid, including Castrol, Shell, Motorcraft, Pure Guard, and even our house brand, Delta Pride. For a quote on what it would cost you to purchase this for your shop, or to get more information on what type of ATF is right for you, please contact one of our Sales Support Specialists at 1-800-883-8081.

Logo Lowdown: Why a Shell?

Jennie McRae - Tuesday, December 16, 2014

Have you ever found yourself wondering why Shell Oil Company uses a shell as their logo? Or why they're called "Shell" at all? 


...Us, too!


Legend has it that there was a small London business, Marcus Samuel and Company, that dealt in kerosene, antiques and oriental seashells. (Seashells were apparently a hot commodity in the Victorian era!--people used to decorate things like trinket boxes with them.) The company capitalized on this demand so much so that they changed their name to the the "Shell Transport and Trading Company" in 1897. Soon to follow was the first mussel shell logo in 1901. By 1904, a scallop shell or "pecten" emplem was introduced.  


There have been contradicting reports, however, that the reason why the shell actually stuck as the brand's image and name is because of Mr. Graham, or Graham Oil, who eventually became director of the Shell Oil Company. Mr. Graham's family's coat of arms included a shell emblem.


Whatever its origins, the shell logo was originally a faithful reproduction on the pecten or scallop shell. And when the Royal Dutch Petroleum Company and Shell Transport and Trading merged in 1907, it was the "shell" brand name that was chosen to bring the company into a new era.


The form of the shell emblem has certainly changed over the years to keep in line with current graphic design trends of the time--to learn more about the history of Shell Oil Company and to see the evolution of their logo, visit their history page at http://www.shell.com/global/aboutshell/who-we-are/our-history/history-of-pecten.html.



History: Synthetics Edition

Jennie McRae - Tuesday, December 09, 2014

We've all heard of synthetic oils, but do you know where they came from? Or why we use them? In this installment of our History Blogs, we're giving you the low-down on all things man-made (oils, that is).


Synthetic oils are just lubricants made of chemical compounds that are artificially made (or synthesized).There are two main types of synthetic oils widely used today: Poly-alpha-olefin oils (PAOs) and Esters. PAOs are polymers that are made by polymerizing an alpha-olefin (an alkene that has a carbon-carbon double bond between the #1 and #2 carbons in the molecule). And esters are synthetic chemical compounds with the carbonyl adjacent to an ether linkage.1


The very first synthetic oil was actually made during WWII in Germany because the allied bombings destroyed most refineries and cut oil supplies off. The first synthetic oil to be API certified is said to be Amsol, in 1972. And finally, the first large-scale, commercially available synthetic was Mobil 1, which actually came on the market for commercial use in 1976.


Since the '70's, synthetic oils have come a long way--Pennzoil just released their Platinum synthetic oil with Pure Plus technology, made from natural gas instead of crude oil (Learn more here.), and Castrol's Edge Extended Performance guarantees a whopping 15,000 miles between oil changes (Learn more here.)


Whatever your motor oil needs are, COS is equipped to help. To find out what synthetic oil is best for your car, call 1-800-883-8081 to speak with our experts.


1. SynLube Incorporated. [1] All About Synthetic Oil

All About Brake Fluid

Jennie McRae - Tuesday, December 02, 2014

We probably all agree that "braking" is one of the most important functions of our cars, and although adding brake fluid is not a part of routine vehicle maintenance, it's important to know when, and why, a brake fluid flush is necessary.


But first: what is brake fluid, actually?--


--It's a type of hydraulic fluid used in hydraulic brake and hydraulic clutch applications in automobiles, motorcycles, light trucks, and even in some bicycles.1 It transfers force into pressure, and amplifies braking force. Most brake fluids used are either glycol-ether based, mineral oil based, or silicone based.


And have you ever wondered what the DOT numbers mean?


DOT actually stands for the U.S. Department of Transportation, and DOT 3, DOT 4, etc., are just broad classifications that reflect concerns addressed by the SAE's specs, but with local details based on temperature and humidity ranges considered when making regulations.2


Specifically, DOT 3, 4, and 5.1 are polyethylene glycol-based fluids. These fluids are hygroscopic and will absorb water from the atmosphere. DOT 5 is silicone-based and is actually hydrophobic, so DOT 5 brake fluids have a more stable viscosity index over a wide temperature range.3


Basically, it's important to know which brake fluid your system requires. And just like you wouldn't skimp out on regular oil changes for your vehicles, it's important that you don't let your brake fluid get contaminated by particles, either. It's typically a good rule of thumb to have your brakes flushed about every 30,000 miles. It is also important to note that brake flushing and brake bleeding are two different procedures. Brake flushing could be compared to an oil change--it involves removing all the brake fluid from the system, and replacing it with brand new brake fluid. Brake bleeding is when just enough brake fluid is removed to get air bubbles out of the brake lines.4


If you ever notice your that your brakes aren't performing like they should, have them inspected immediately. For more information on what brake fluid is right for your car or your fleet's engines, give us a call at 1-800-883-8081.



1. ^ "Standard No. 116; Motor Vehicle Brake Fluids". U.S. Department of Transportation. 12 Apr 2013. Retrieved 22 May 2013

2.  "MSDS for DOT 3 brake fluid". Retrieved 2012-06-04.

3. ^ Standard No. 116; Motor vehicle brake fluids Code of Federal Regulations, Title 49 - Transportation, Chapter V - Part 571 - Federal Motor Vehicle Safety Standards (49CFR571), Subpart B, Sec. 571.116 Standard No. 116; Motor vehicle brake fluids

4. http://auto.howstuffworks.com/auto-parts/brakes/brake-tests/is-brake-flushing-necessary.htm

Industrial Best Practices: Safety

Jennie McRae - Tuesday, November 25, 2014

Central Oil & Supply is very proud to have two D-FLTS certified account managers (there are only approximately 30 in the country!). So when it comes to workplace safety and industrial best practices, we have you covered. Safety is something that we feel very strongly about at COS; after all, an unsafe work environment has the potential to harm your most valuable resource--your employees. And, it's important to note that often, shortcuts are made in efforts to save money and time, but the safety hazards that could result might end up costing you much more in the long-run. 

Here are a few tips from Nicole Morgan, our North Louisiana/Arkansas D-FLTS Account Manager:

1. Wear Personal Protective Equipment (PPE):

-Hard Hats (to protect from falling objects/walking into sharp objects)

-Safety Glasses/Goggles (to protect eyes from debris, dust, and contaminants to eyes)

-Steel Toe Footwear (to protect against heavy items dropped on feet)

-Light-Colored, Cotton Clothing (to reflect light and protect against heat exposure)

-Gloves (to protect from chemical burns, hot surfaces, and dirt contamination)

2. Take Time Out to Hydrate:

-Exposure to excessive heat and enclosed places promotes over-exertion and sweating, which leads to dehydration.

-Re-fueling with room temperature water or Gatorade is essential to keeping your body cooled down 

3. Take 5:

-Create small teams that meet for 5 minutes to discuss surroundings and potential hazards/check for safety equipment and safety performance issues. 

-Use these teams to evaluate any changes since the last huddle in order to promote awareness and accountability.

4. Lock out/Tag out:

-Lock out/tag out is the proper way to shut down equipment: lock the machine/power source to it cannot be turned on

-Tag the machine so it is not tampered with until the tag is removed, showing that the power source can be turned back to on position

5. Don't be Tempted by Shortcuts:

-Shortcuts reduce safety, and guidelines are put in place to take the time to do it right the first time

-Report any unsafe conditions/guideline negligence--after all, it's your safety on the line

-Always have a watchful eye for yourself and others! (If everyone is watching, everyone is safe.)


For more advice on how to create a safe work environment at your facility or plant, please call one of our nationally certified D-FLTS (2) trained account managers at 1-800-883-8081.


Non-Detergent Oils: Why Use Them?

Jennie McRae - Tuesday, November 18, 2014

When it comes to choosing the right oil for your engine, there are many things to consider. Not only do you have to think about the weight of your oil and the brand you should use, there is also the issue of whether or not you will use an oil with a detergent.


One of the benefits of using a main-line, conventional or synthetic oil is that there are detergents added to help keep your engine clean--they fight sludge and trap particles that would settle on the internal surfaces of your engine. Basically, the detergents suspend harmful particles in the oil until the oil is changed. Detergents can also assist in the deterring of oxidation and rust in your engine.


So, why would anyone ever not want to use an oil with a detergent?


Believe it or not, using a non-detergent may not be so bad for your engine! They still provide excellent lubrication and ensure that your engine will run at a cooler temperature. It is important to note, however, that oil analyses should be conducted regularly because non-detergent oils do not protect against sludge and contaminants. Your non-detergent oil will need to be changed at regular intervals in order for your engine to remain healthy and running efficiently.


There are also many applications where the use of a non-detergent is prevalent. Appliances that require gasoline, aquatic motors, and motorcycle engines often use non-detergents.


For more information on non-detergent oils and whether they are right for your engine, please contact one of our lubricant experts at 1-800-883-8081.

Coolants/Antifreeze 101

Jennie McRae - Tuesday, November 11, 2014

Engines are hot. Even engines with maximum efficiency will produce an excess amount of heat that could expand and seize parts of your engine. And since your business depends on the effectiveness of your equipment, it is imperative you use the right antifreeze to keep your engine healthy.


Antifreeze, or engine coolant, is used to lower the freezing point of a solvent. Typically, antifreeze is added to the water in your engine's cooling system--it causes that water to be cooled below the freezing point of pure water without freezing. And if you want to get really technical, ethylene glycol, methanol, ethanol, isopropyl alcohol, and propylene glycol are all used as the 'cooling agents' in popular brands of antifreeze. There will also most likely involve substances that inhibit corrosion in this mix, as well as antifoaming agents.


The two main types of antifreeze are standard and ELC (extended life coolants). Standard antifreeze will be either yellow or green in color, and is usually a mixture of ethylene glycol and water. ELC antifreeze will appear red in color and uses OAT (organic-acid technology) to provide superior protection. All antifreeze is offered in a 50/50 diluted mix or as a straight concentrate.


At COS, we offer a wide variety of antifreezes, such as:


ELC Antifreeze: ELC stands for Extended Life Coolant; these coolants appear red. Shell Rotella® ELC offers excellent heat transfer, corrosion inhibitor technology, and money-saving technology that will prolong the life of seals, hoses, and other cooling system components.


 Castrol HD Antifreeze with SCA: Castrol Heavy Duty Antifreeze with Supplemental Coolant Additive is designed to provide superior engine protection for heavy-duty cooling systems. This is a universal formula antifreeze, with advantages of low total dissolved solids, low silicate, and nitrite to provide superior wet sleeve liner cavitation protection.


 Shellzone Antifreeze: Shellzone is a superior quality, single phase, ethylene glycol based antifreeze. It is low silicate, all-purpose, and designed for use in both automotive and heavy duty diesel engines (with the use of SCAs).


To learn more about which antifreeze is right for your equipment, call one of our experts at 1-800-883-8081.








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