The Dyna-Plex 21C line of high-quality engine oils offers generations of proven protection.

Discover a full range of Dyna-Plex 21C heavy-duty and natural gas engine oils formulated specifically for over-the-road, long-haul diesel or natural gas engines.

The Dyna-Plex 21C line of railroad lubricants protect locomotive diesel engines, bearings and components.

Dyna-Plex 21C Corvus Railroad Engine Oils are recommended for locomotive and medium-speed stationary and marine diesel engines. Dyna-Plex Draco protects support bearings and locomotive truck center plates.

The Dyna-Plex 21C line of transmission fluids includes solutions for automatic and manual transmissions.

All Dyna-Plex 21C products are formulated for exceptional all-weather performance and protection for heavy wear, and are particularly effective for bus fleets and over-the-road trucks for long transmission life.

The Dyna-Plex 21C line of gear oils are specifically formulated for heavy-duty trucks and machinery with performance additives to protect under extreme pressure and in extreme temperature environments.

The Dyna-Plex 21C line of hydraulic fluids is designed to protect hardworking equipment and complex systems.

Dyna-Plex 21C hydraulic oils and fluids include specific solutions for rust and oxidation prevention, biodegradable applications, and zinc-free formulations, all with premium anti-wear agents for long-term reliable performance.

Dyna-Plex 21C Circulating Oils include full synthetic blends for excellent gear and bearing protection, heavy-duty turbine oils for steam, hydraulic, and gas turbines, and high-viscosity oils for superior propulsion gear protection, even in extreme heat and moisture.

The Dyna-Plex 21C line of compressor oils are all formulated and blended for excellent rust and oxidation resistance, anti-foam properties and anti-wear additives. In addition to the full-synthetic Dyna-Plex 21C Synzol Compressor Oils, the Dyna-Plex 21C Heavy-Duty Turbine Oils are specifically made for turbine bearings and propulsion gears.

Dyna-Plex 21C industrial high-performance greases offer excellent wear protection for the world’s toughest equipment.

The Dyna-Plex 21C line of industrial greases includes heavy-duty greases, gear lubricants, high-temperature greases, synthetic grease and lubricating grease.

Dyna-Plex 21C antifreezes and coolants provide long-lasting protection of heavy duty cooling systems.

Trust the Dyna-Plex 21C line of coolants and antifreezes for maximum durability in heavy-duty and diesel applications, preventing metallic corrosion and erosion.

The Dyna-Plex 21C line includes a broad selection of heavy-duty and industrial oils uniquely formulated for specific applications within many industries, including logging and timber, steel milling and manufacturing, paper milling, asphalt and concrete, textiles, and more.

The Dyna-Plex 21C line of metalworking fluids and cutting oils are among the industry’s highest performers.

Find superior non-chlorinated and chlorinated cutting oils, machining and grinding coolants, cleaners, stamping and drawing fluids, rust preventatives, and specialty oils.

Dyna-Plex 21C Metalworking Cleaners include highly effective industrial anti-microbial solvents and industrial process cleaners to keep manufacturing processes and environments free of defects.

Dyna-Plex 21C products are carefully formulated to meet or exceed all industry licensing and specifications.

Product Data Sheets provide product benefits, a full list of industry approvals and specifications, typical analysis data, and health and safety information. For questions about specific products, contact a Dyna-Plex 21C solutions expert today.

Dyna-Plex 21C Heavy-Duty On-Road products protect engines across thousands of miles of highway driving.

The Dyna-Plex 21C heavy-duty on-road line offers premium formulations for long-haul trucking, mass transit, military vehicles, and a wide range of over-the-road fleets. The line includes diesel engine oils, tractor oils, hydraulic oils, greases and gear oils, and coolants.

Dyna-Plex 21C Heavy Duty Off-Road products protect some of the world’s largest engines and equipment.

The Dyna-Plex 21C heavy-duty off-road lubricants offer premium protection for heavy construction, agriculture, mining and manufacturing, and any equipment required to operate at peak performance for profitability.

Dyna-Plex 21C Industrial Lubricants are specifically designed to protect heavy machinery and components.

The Dyna-Plex 21C industrial line of premium proprietary products deliver superior protection from harsh friction during metal-on-metal operations. The line includes both synthetic and zinc-free hydraulic oils, gear oils, greases, circulating oils, and solutions for specialty applications.

Dyna-Plex 21C Metalworking Fluids and Cutting Oils are among the industry’s highest performers.

The Dyna-Plex 21C line of metalworking fluids is created, formulated and blended for superior performance. The line includes non-chlorinated and chlorinated oils, machining and grinding coolants, cleaners, stamping and drawing fluids, rust preventatives, and specialty metalworking oils.

The Dyna-Plex 21C Service Platform is a complete solution for engine and equipment performance and profitability.

Discover the Dyna-Plex 21C Difference:

• Equipment and Services
• Industry’s Top Technical Advisors
• Engine-Saving Oil Analysis
• Product Research and Development

All Dyna-Plex 21C customers are invited to receive the engine-saving benefits of Engine Guard Analysis, a powerful business support tool exclusively from the experts at the PetroChoice Laboratory.

Save time and money with the exclusive LifeLines® Equipment Maintenance Program from PetroChoice. Schedule and track maintenance jobs and receive online access to oil analysis results and all work orders.

Dyna-Plex 21C is a proprietary line of premium products, offering the same protection of major heavy-duty brands. Decades of research, oil analysis, and documented engine and field tests demonstrate the line’s superior performance.

The combination of Dyna-Plex 21C products and services results in engine and equipment performance and real-world business savings. Discover how the right oil at the right time can result in significant financial benefits in these case studies.

Dyna-Plex 21C grew because customers told other customers about the efficiencies, protection and performance of the line. Review comments from owners and operators about why Dyna-Plex 21C is the choice for heavy-duty excellence.

All Dyna-Plex 21C products are warranted by PetroChoice, of the largest distributors of lubrication services and products in the U.S.