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RTEX Railcar Leasing & Sales provides tank cars for the safe and compliant transportation of liquid and gaseous commodities across North America. Tank cars are built to strict regulatory standards and are engineered to handle a wide range of chemical, energy, and industrial products.

Selecting the appropriate tank car requires careful consideration of commodity classification, pressure requirements, lining compatibility, and loading and unloading systems. RTEX works with shippers to ensure proper equipment alignment with regulatory and operational requirements.

→ View our current tank car inventory

What Is a Tank Car?

Tank car generic

A DOT 111 general service tank car — the most common non-pressure tank car type.

A tank car is a cylindrical pressure or non-pressure vessel mounted on a railcar underframe, used to transport liquid, liquefied gas, and certain gaseous commodities by rail. Tank cars are regulated under DOT/AAR specifications and must be matched to the specific commodity being shipped — including its chemical properties, temperature sensitivity, and pressure requirements.

Unlike most freight cars, tank cars are often commodity-specific. A car used for ethanol cannot simply be switched to caustic soda without cleaning, relining, and regulatory re-qualification. RTEX helps shippers navigate equipment compatibility before placing a lease.

Tank Car Configurations

Tank cars are classified by specification (DOT/AAR), pressure rating, and commodity suitability. The three most common categories in RTEX's market are:

General Service Tank Car
Configuration 1
General Service (Non-Pressure)
DOT 111 / CPC-1232 / TC-117 spec cars. Used for ethanol, petroleum products, vegetable oils, and non-hazardous liquids. Most common spec in the North American fleet.
Pressure Tank Car
Configuration 2
Pressure / DOT 105 & 112
High-pressure cars for LPG, anhydrous ammonia, chlorine, and other pressurized commodities. Thicker shells and safety valves rated to higher pressures than general service cars.
Coiled Insulated Tank Car
Configuration 3
Coiled & Insulated
Heated and/or insulated cars for viscous or temperature-sensitive commodities like molasses, asphalt, tall oil, and certain chemicals that must stay warm to remain flowable.

Tank Car Specifications

Key specifications vary widely by car type. The table below summarizes common tank car categories in North American service:

SpecificationTypical CapacityPressure RatingCommon Commodities
DOT 111 / TC-11720,000–34,500 galNon-pressureEthanol, petroleum, vegetable oils
DOT 105 / 11211,000–33,000 gal100–500 psiLPG, anhydrous ammonia, chlorine
Coiled & Insulated16,000–30,000 galNon-pressureAsphalt, molasses, tall oil
Lined/SpecialtyVariesVariesAcids, food-grade, industrial chemicals

Not sure which tank car specification is right for your commodity? Contact RTEX — we work with shippers to confirm commodity compatibility before placing equipment.

Commodities Shipped in Tank Cars

Tank cars serve a wide range of liquid commodity markets. RTEX has experience sourcing and leasing cars for the following:

CategoryExamples
Energy & PetroleumCrude oil, fuel oil, diesel, gasoline, ethanol, biodiesel, condensate
ChemicalsCaustic soda, sulfuric acid, hydrochloric acid, sodium hydroxide, solvents
Agricultural & FoodLiquid fertilizers, vegetable oils, corn syrup, molasses, food-grade liquids
Industrial GasesLPG, anhydrous ammonia, propane, chlorine, liquid CO2
Specialty ChemicalsResins, adhesives, industrial acids, tall oil, asphalt

Industries Served

  • Petroleum refiners & distributors
  • Chemical producers & distributors
  • Agricultural chemical manufacturers
  • Food & beverage processors
  • Ethanol producers & blenders
  • Industrial gas companies
  • Asphalt & road products companies
  • Liquid fertilizer producers

Lease or Buy a Tank Car Through RTEX

Flexible Leasing. Personal Service. Fast Decisions.

At RTEX, every lease is structured around your specific needs. We work with shippers and rail-served facilities of all sizes — and every transaction is handled directly by a principal with the authority to get the deal done.

  • Short-term, long-term, and multi-year lease agreements
  • Customized rate structures based on fleet size and commitment
  • Cars sourced from our network across North America
  • You deal directly with decision-makers — never a call center
  • Sales, brokerage, and remarketing also available

Frequently Asked Questions

Do tank cars need to be cleaned between commodities?
Yes. In almost all cases, tank cars must be cleaned, inspected, and in some cases re-qualified before switching between commodities — especially when moving from hazardous to food-grade service or between incompatible chemicals. RTEX helps shippers identify cars already in compatible service to minimize cleaning costs.
What does DOT 117 / TC-117 mean and why does it matter?
DOT 117 (TC-117 in Canada) is the current standard for non-pressure flammable liquid tank cars, introduced after the 2013 Lac-Megantic accident. These cars have thicker steel shells, protective head shields, and improved bottom outlet valves. Most Class I railroads now require DOT 117 compliance for ethanol and crude oil movements.
Can RTEX source tank cars for a specific chemical or commodity?
Yes. RTEX has industry connections to locate cars already in compliant service for specific commodities. Provide us with your commodity, volume, and routing and we'll identify appropriate equipment options.