Cenex® Premium Diesel Additives

Cenex® Premium Diesel has a more complete additive package for a more complete burn. Every gallon contains a tailored blend of seven additives that are terminally injected to ensure the highest standards of quality and performance.

As the final part of the Cenex Premium Diesel education series that kicked off in September, we will review the final three terminally blended additives that are found in Cenex premium diesel fuels, today we will focus on storage stabilizer, cetane improver and corrosion inhibitor.

Storage Stabilizer

For those who store large quantities of fuel for long periods of time, storage stabilizers are especially important. It works by forming a coating to prevent oxidation (a fuel’s process of breaking down), which help extend the life of the fuel. It also reduces gum and varnish buildup, helps protect the fuel with extreme changes in outdoor air temperature and increases injector life by optimizing combustibility.

Cetane Improver

Cetane measures a fuel’s ignition delay — or how quickly the air and fuel mixture combust in your engine. Cenex premium diesel has higher cetane content, which means a shorter delay and better ignition quality that lead to faster start-ups and reduced wear on the battery and starter. Not to mention, less pollution. Cenex premium diesel fuels have a typical cetane number of 47-49.

Corrosion Inhibitors

Corrosion inhibitors provide superior corrosion protection, preventing the formation of rust on metal parts. This slows the natural degradation of diesel fuel caused by exposure to oxygen and prevents leaks, blockages and breaks that can be caused by corrosion.

Cenex premium diesel provides a more complete burn to keep fuel and exhaust systems clean, increasing power and efficiency with less repairs or down time.

Learn more about the complete additive package.

If you would like to learn more about these additives and how Cenex Roadmaster XL® or Cenex® Ruby Fieldmaster® can benefit your business, contact Landmark today.

*Original article drafted from “CHS in the Know”

Propane Referral Form

Thank you for the referral! $50* will be credited to your Landmark account for every qualified new propane customer you refer that signs up for propane service with Landmark.

*Qualified referrals must meet all the following requirements:

  • Referred Customer must sign a 48-month propane agreement with Landmark.
  • Referred Customer must take delivery of propane into a 500-gallon tank or larger.
  • Referred Customer must not have purchased any propane from Landmark in the last 24 months.
  • Landmark has not delivered any propane to the Referred Address in the last 24 months.
Propane Referral



Enjoy summer grilling safely

Get ready for summer grilling! Check out these safe grilling tips:

  • Keep your grill outdoors and at least five feet from the house.
  • Use a soapy water solution to check connections for leaks.
  • Follow proper lighting procedures, keep the lid open and don’t lean over the grill when lighting it.
  • Be present. Stay close and never leave your grill unattended.

Also, make sure you’re following best practices when it comes to transporting, handling and storing portable propane cylinders. Check out this safety video.

You Could Earn Tax Credits on HVAC Efficiency Improvements 

In December 2019, Congress passed legislation that renewed the tax credits for 2020 and made them retroactive back to 2018. For qualified HVAC improvements, homeowners may be eligible to claim the federal tax credits equal to 10% of the installed costs; a maximum tax credit of $500.

If you have purchased a system from Landmark Heating and Cooling in the past, or are thinking of purchasing a new system in the near future, you could be qualified for up to $500 in additional savings in the form of tax credits for 2018, 2019, and 2020! The tax credit is retroactive.

Be sure to consult your tax advisor before making taxes.

Read more: Energy Star

Form 5695

Instructions for Form 5695

Contact Landmark Heating and Cooling for more information.

608-819-3118 or HVAC@landmark.coop


Landmark Heating and Cooling and Lennox Industries Team Up to Help a Neighbor

Landmark Heating and Cooling team members in Cottage Grove, WI, know that the frigid winter temperatures will be here soon. That’s exactly why they will be spending next Saturday morning installing a new furnace for helping a deserving Edgerton family. The recipients this year are the Gumbles. Teagan has health issues that are reactive to heat, cold, humidity, allergens and clean air so a program like Feel the Love can really make a difference in her quality of life.

For ten years the Landmark Heating and Cooling team has donated all labor and installation materials to install a brand new high-efficiency furnace, which is  generously donated by Lennox Industries, for a family whose existing unit is severely inefficient or unrepairable at no cost to the recipient.

The Wisconsin family was nominated and selected as part of the Feel the Love program, which asks members of the community to nominate people who are in need. Nominations for the program are accepted year-round, with recipients chosen based on specific criteria each September—before the temperatures start to drop.

“It’s such a rewarding program to be a part of,” says Tom Stangl, sales coordinator at Landmark Heating and Cooling, “There’s no better feeling than knowing that you’re bringing warmth and a sense of security to a well-deserving neighbor in your community. For me, it’s a great way to spend a Saturday.”

Propane Convenience with Peace-of-Mind

Make propane monitoring simple with this easy to use app that allows you to see propane levels and usage through the convenience of an automatic propane level monitoring system. Understand your energy consumption and keep an eye on remote tanks to make your life a little simpler.

5 Tips To Beat The Heat

With exceeding temperatures ahead, here are a few tips to keep you “cool as a cucumber” this summer.

1.) Shut the Door and Close the Blinds

Closing the door behind you or shutting the blinds during the day is an easy step to keeping the hot sun from beating into the house and preventing the cool air from escaping. Closing off unused rooms in your home can also minimize the amount of area your air conditioner has to cool.

2.) Check Air Filter

It will not only improve air quality by removing the dust and dirt but also improve the energy efficiency of your HVAC system. Replacing your air filter every few months could save you some extra cash when it comes to your utility bill and extend the life of your air conditioner.

3.) Turn Off Lights and Reduce Stove Use

Keeping the rooms in your home darker can prevent extra heat escaping from light bulbs and the dim lighting will make the room seem cooler. Cooking with an oven set at 400-degrees will increase the temperature of your kitchen and surrounding rooms. If possible, try out a new grill recipe instead.

4.) Clean Vegetation Away from Outdoor Unit

Planting flowers or tall shrubs close to an outdoor HVAC unit can restrict the airflow to the system and it will become unable to cool properly. Plants should be at least 2-3 feet away from the unit so that it is also accessible in the event of repairs or maintenance.

5.) Program your Thermostat

A programmable thermostat will maintain a suitable temperature depending on the time of day instead of running a continual temperature all day. Consider investing in a programmable thermostat to keep the temperature of your home comfortable while still saving you money.

Landmark Services Cooperative’s team of heating and cooling specialists are here to answer your questions or be of service during these warm summer months.

Energy News – (Propane) Safety First

Safety firstWinters in high snowfall areas can be some of the most magnificent, but they can also be the most challenging. Accumulated snow and ice have the potential to damage your propane system. While you can’t predict the first snowstorm or hazardous weather condition, you are in the best position to take measures to plan for them. Snowstorms require prompt attention, but your safety comes first. Use caution in the areas surrounding your home after the storm.

Get to know your propane system.

If you are not familiar with your propane system, take a few minutes to review it. Identify core components—tank, regulators, meter, piping, and supply valves—as well as any appliance vents. Be sure you know where your gas supply valve is located, in case you need to close it in the event of an emergency. For more information, contact your propane retailer.

Mark your tank and regulator.

Mark your tank with a brightly colored stake or flag taller than the maximum anticipated snow depth. Also, mark your secondary pressure regulator or meter. It is usually near the side of your home (see photo below at left). Check local ordinances about marking tanks and regulators, and follow any rules applicable to your jurisdiction. It is important to mark your tank and equipment to enable emergency and propane service personnel to locate it at all times. Have an adequate supply  of propane in your tank. In high snowfall areas, roads leading to your home might not be accessible for delivery, particularly after a snowstorm. It is recommended that you establish a regular delivery schedule with your propane retailer.  Designate an area to pile any accumulation of snow safely away from any propane equipment. Advise snow removal companies of the location of your propane tanks and equipment, so they can keep clear of it to avoid damage and potentially dangerous gas leaks. Talk to your contractors. If you use a snow removal service, make sure that the service knows the location of all propane equipment on the property. Instruct them to keep their equipment clear of all parts of your propane system. If your snow removal service shovels snow off your roof, instruct them to never shovel snow onto any part of the propane system. Provide a copy of this brochure to your snow removal service. If you need additional copies, contact your propane retailer.

Keep snow and ice from accumulating on propane equipment.  Snow or ice accumulation can potentially cause parts of your propane system to crack or break, resulting in a gas leak. It is your responsibility to make sure that all propane pipes, valves, regulators, and tanks are clear of snow and ice. Gently brush away snow or ice that has accumulated around the tank, meter, regulator, and any other piping. Do this using a broom or by hand. If you must use a shovel, use extreme caution around all equipment. If you notice any snow or ice buildup that cannot be removed easily, contact your propane retailer immediately. DO NOT attempt to remove snow or ice by kicking or hitting equipment.

Be alert to snow buildup on rooftops and other areas.

Frequently check where snow or ice collect on your roof, structure, or nearby trees and clear it if you believe it might fall on any part of your propane system. Never shovel snow off roofs and onto propane

equipment. Heavy accumulations of snow or ice falling on tanks, regulators, meters, piping, or valves may cause damage that could result in a gas leak.

In high snowfall areas, drifting snow and snow and ice sliding off the roof may require additional regulator and vent protection. Consider installing snow protection or a “snow shelter” above your meter or regulator to prevent snow and ice damage. Contact your propane retailer for more information.

Keep vents clear.

Appliance vents and chimney flues must ALWAYS be clear of snow or ice. Some homes may have “direct” vents, which are close to the ground. Improper venting can cause carbon monoxide to become trapped in your home, causing serious illness or even death.

Clear driveways and pathways to propane tanks.

Please remember that a propane delivery truck needs at least a 10-foot-wide path to be able to deliver fuel to your home. Also, keep the tank area and a path to the tank free of snow. When plowing, snow blowing, or shoveling, do not push or pile snow around your tank, meter, regulator, or piping.