Performance Engineered Lubricants - Since 1919


    D-A Lubricant Company, Inc. manufactures PennGrade Motor Oil in Lebanon, IN.
    diesel truck oil

    You Can Depend on Reliant™ J-4 Diesel Engine Oil For The Long Haul

    The proof of performance is always measured in the field and the new norm is the standard set by the family of the D-A Reliant™ J-4 oils. Designed specifically to meet the stringent requirements of the API Service Category CJ-4. This new classification is required in 2007 and later model diesel engines running on ultra-low sulfur diesel fuel and equipped with after-treatment devices. More info.
    HydroGuard™ oil in dredging crane

    HydroGuard™ Makes Sure That Oil and Water Don't Mix

    D-A HydroGuard™ is designed to separate and shed water in applications where water is inevitable. Whether it is a result of a working environment, such as in a dredging operation, precipitation or moisture condensation, water can get into the lower gear case of a crane's travel mechanism and contaminate the gear lubricant. When compared to conventional automotive gear oils, HydroGuard ensures protection of gears in wet applications. More info.

    D-A Products by Industry

    D-A Line Cards
    Where can you purchase PennGrade Motor Oil? Click here.

    Indycar and PennGrade Lubricants
    The historic 100th Running of the Indianapolis 500 on May 29 added more history today with the race's first presenting sponsor, PennGrade Motor Oil.

    Indianapolis, IN and Lebanon, IN (January 21, 2016)
    A brand of Lebanon, Indiana-based D-A Lubricant Company, PennGrade Motor Oil will serve as presenting sponsor through a multi-year deal running through 2018. This historic announcement is welcome news for the Indianapolis Motor Speedway and generates even more momentum for the entire Verizon IndyCar Series, Hulman & Company CEO Mark Miles said. PennGrade Motor Oil, with its deep understanding of the heritage and tradition that fuels the Indy 500, is the perfect presenting sponsor for the world s greatest race. We re thrilled that PennGrade Motor Oil is joining us, not only for the 100th Running of the Indianapolis 500 but for more Indy 500s going forward, Indianapolis Motor Speedway president Doug Boles said. My grandmother worked for D-A Lubricant so I m well-versed in the company s history and I know our fans will appreciate the Hoosier connection as well.

    See the Press Release

    BROWNSBURG, IN and LEBANON, IN (March 10, 2015) - Rahal Letterman Lanigan Racing (RLL) announced today that D-A Lubricant Co., a privately owned heavy duty, and industrial lubricant compounder/blender, will be the primary sponsor of the No. 15 Indy car driven by Graham Rahal at the inaugural Indy Grand Prix of Louisiana April 10-12 at NOLA Motorsports Park. In addition, D-A Lubricant Co. has joined the team as a multi-year, major associate sponsor of the entry. This partnership marks a return to Indy car racing for D-A Lubricant Co., based in Lebanon, IN, who sponsored entries in the Indianapolis 500 from 1955 - 1958 with a highest finish of sixth in "The Greatest Spectacle in Racing" in 1956 with driver Bob Sweikert. D-A-sponsored cars also ran in the USAC Championship Car series during that time period, earning one win in 1957 and four wins in 1958.

    In addition, the relationship provides a business-to-business opportunity with the LANCO Group of Companies, whose president is RLL co-owner Michael Lanigan. D-A Lubricant Co. will provide additional technical support to the team in 'development' of performance lubricants that will be used on the race car.
    See the Press Release