If your facility has in-ground tanks for diesel fuel storage, Penray, suggests that it’s time for cleaning. After a long, hard winter, stored diesel fuel will have accumulated moisture, corrosion, oxidation, and sludge, along with sediment deposits. If introduced into vehicles or stationary diesel engine tanks, these deposits and materials can cause a host of problems. And such issues are especially problematic with Ultra-Low Sulfur Diesel (ULSD) and bio-fuels.

Fortunately help is on the way.

For those facilities that prefer to do their own treatment, Penray offers their Fuel Prep™ Biocide. It’s no secret that cold weather condensation can add significant quantities of water to stored diesel fuels. Further, new systems and processes, like vapor recovery systems and the blending of bio-fuels, can introduce water into the fuel. And once water is present, harmful bacteria and fungi can grow in these fuel supplies.

Penray’s Fuel Prep Biocide is specially blended to eliminate such microbial activity in diesel fuel supplies. By doing so, this product can help eliminate the clogged filters, clean-out costs and, in extreme cases, corrosion that can be sufficient to cause tanks to leak, resulting in expensive repairs and costly environmental remediation.

If professional help is needed, you’ll be happy to know there is a Doctor in the house…

Penray offers its exclusive Fuel Doctor program for fleets, distributors, and other facilities that store large quantities of diesel fuel. Penray’s Fuel Doctors are specially-trained diesel fuel experts who are available to make house calls. They can provide on-site diesel fuel sampling, analysis, and treatment.

Penray’s Fuel Doctors provide testing that can reveal the presence of water, evidence of corrosion, and indications of microbial growth, all of which can compromise the viability of the fuel. Samples can then be sent to off-site testing labs for confirmation of field testing results. Penray provides complimentary initial system testing free of charge. Armed with all of this data, Penray’s Fuel Doctors then schedule a consultation with the facility manager with recommendations for remediation.

If testing and evaluation suggest the need for “intensive care,” it’s comforting to know that Penray has partnered with Allied Oil & Tire Co. to provide a full range of treatment, maintenance, and remediation services for diesel fuel storage tanks. Allied has extensive history and expertise in such services and, in concert with Penray, can provide any level of corrective action needed. Allied technicians have earned confined space certification, so they are fully qualified to enter, clean and repair fuel storage tanks as needed.

Explains Penray’s Greg Mixon, Director Heavy Duty Sales , “Penray has more than a half-century of experience in developing and producing additives that support the viability of diesel fuels. Our Fuel Doctor Program is just one more example of the knowledge and customer service we bring to the diesel fuel industry.”

Adds Mixon, “The combination of our made-in-the-USA additives and treatment chemicals, along with our industry-leading Fuel Doctor program and our partnership with Allied, allow us to offer the industry’s most complete package of the products and services needed by owners and operators of diesel fuel storage facilities. They can reach out to Penray to assure that diesel fuel supplies remain fresh and potent, especially with the change of seasons upon us.”

Penray engineers recommend twice-yearly testing of in-ground diesel fuel storage supplies, with treatment as necessary to assure that fuel will not cause problems in the vehicles and equipment that rely on diesel power.

For an appointment with a Fuel Doctor, fleets and other customers can contact their Penray sales representative or call us at Ph. 800.323.6329

Fuel Doctor Program


Penray, Inc. has been selected by The Aftermarket Auto Parts Alliance (The Alliance) to be the exclusive supplier of their Parts Master and Perfect Stop private label aerosol service chemicals. In addition, Alliance members will have the opportunity to purchase the full line of Penray-branded products.

Under this new partnership, Penray will supply over thirty separate part numbers under the Parts Master and Perfect Stop brand names. These will include a host of products such as brake parts cleaner, carburetor and choke cleaner, and other aerosol service chemicals . At the same time, Penray has been named an authorized supplier of Penray-branded products for their entire line of nearly a hundred different chemicals, treatments, cleaners, and additives.

All of these Parts Master, Perfect Stop, and Penray products will be available throughout the entire Alliance distribution network, which includes Auto Value and Bumper to Bumper warehouses and auto parts stores throughout the U.S., Canada, and Mexico.

The new private label products will feature fresh and exciting new packaging, and will be supported with targeted promotions. Penray will also provide training, marketing and merchandising support for parts and service professionals.

“This important new business will greatly increase the availability of our various chemical products to automotive service professionals and DIYers alike,” notes Randy Fowler, Vice President – Automotive and Private Brand Sales for Penray. “Customers can choose with confidence either the Parts Master, Perfect Stop, or Penray branded product, knowing that these products will enhance their productivity and efficiency. These products are developed, blended, and manufactured in the U.S., under strict quality control standards, as they have been for more than six decades. There’s no doubt that our reputation for quality helped the members of The Alliance make this important decision.”

Adds Dan Rader, Vice President of Product and Category Management for The Alliance, “The decision to choose Penray to provide private label and branded product was the result of extensive research and analysis, and was not made lightly. The value of our Parts Master and Perfect Stop private label products is an essential part of our posture in the aftermarket, and we only trust that label to products of the highest quality.”

Adds Justin Hebert, Category Manager Under Hood, “We researched many manufacturers before making this decision, and we are confident that we have selected in Penray the supplier that is most able to supply us with top-quality products at competitive prices, along with the marketing, merchandising, and technical support needed to meet the needs at all levels of our distribution network, which includes more than 2,200 auto parts stores and over 3,000 certified service centers throughout North America.”

The Aftermarket Auto Parts Alliance is comprised of over 50 independent shareholders who offer a wide array of quality auto products through Auto Value and Bumper to Bumper warehouses, parts stores, and certified service centers across the US, Canada, and Mexico, and even into Europe with over 1.9 million parts and accessories.

More information about Aftermarket Auto Parts Alliance and products can be found at