Case TCH Fluid Equivalent(For All Brands)

Case TCH fluid has been a trusted hydraulic and transmission oil for vintage Case tractors and equipment. Although it is still referenced in many operator manuals, the original formulation can be difficult to find today.

This guide explains what Case TCH fluid is, what to use instead, and provides a full table of equivalent fluids from major brands.

Case TCH Fluid Equivalent

Brand	Equivalent Product Name	Type	Notes
Case IH	Hy-Tran Premium / Hy-Tran Ultraction	Hydraulic/Transmission	Official Case replacement for TCH; modern upgrade
Mobil	Mobilfluid 424	Tractor Hydraulic Fluid (THF)	Meets many OEM specs for TCH-type fluids
Mobil	Mobil DTE 15M	Hydraulic Oil ISO 46	High-performance anti-wear hydraulic oil
Shell	Shell Tellus S2 M 46	Hydraulic Oil	Excellent anti-wear and oxidation control
Shell	Spirax S4 TXM	Tractor Transmission/Hydraulic Fluid	Suitable for older Case equipment
Chevron	1000 THF	Tractor Hydraulic Fluid	All-season universal tractor fluid equivalent
Chevron	Rykon 46AW	Hydraulic Oil	ISO 46 anti-wear match
Phillips 66	PowerTran Fluid	THF	Compatible with TCH applications
Phillips 66	Triton 10W Hydraulic Oil	10W Hydraulic	Good cold-flow performance
Valvoline	Valvoline Tractor Hydraulic Fluid	THF	Fits a wide range of farm equipment
Valvoline	VV935 46 Hydraulic Oil	ISO 46	Anti-wear hydraulic match
John Deere	J20C Hy-Gard	Tractor Hydraulic/Transmission	Closest JD equivalent to TCH
John Deere	Low Viscosity Hy-Gard (J20D)	Low-viscosity THF	Cold-weather alternative
Kubota	Super UDT2	Tractor Hydraulic Fluid	Highly refined THF alternative
CNH	MAT 3540/MAT 3505 Fluids	Multi-use THF	Meets Case TCH performance range
Petro-Canada	Duratran	THF	Premium long-life tractor fluid
Petro-Canada	Hydrex AW 46	Hydraulic Oil	ISO 46 anti-wear formulation
Mystik	JT-5 Tractor Hydraulic Fluid	THF	Suitable for Case TCH applications
Mystik	JT-9 AW 46 Hydraulic Fluid	ISO 46	Anti-wear hydraulic
Tractor Supply	Traveller Universal Tractor Fluid	THF	Common farm-store equivalent
O’Reilly	O’Reilly Premium Tractor Fluid	THF	Meets most THF/TCH requirements
NAPA	NAPA 85-405 Tractor Hydraulic Fluid	THF	Suitable match for TCH
NAPA	NAPA AW 46 Hydraulic Oil	Hydraulic Oil	ISO 46 anti-wear fluid
Citgo	Citgo TransGard Tractor Fluid	THF	Designed for older tractors
Citgo	Citgo AW 46 Hydraulic Fluid	ISO 46	Hydraulic equivalent
Warren	Warren Universal Tractor Fluid	THF	Budget-friendly TCH replacement
Lucas Oil	Lucas Universal Tractor Fluid	THF	Good anti-wear and seal compatibility
Amsoil	Amsoil Tractor Hydraulic/Transmission Fluid	Premium THF	High-performance alternative
Gulf	Gulf Harmony HVI 46	Hydraulic Oil	ISO 46 match
Kendall	Hyken 052	Hydraulic Oil	Anti-wear ISO 46 hydraulic oil
Schaeffer	Schaeffer 315 Simplex Supreme	Hydraulic Oil	Known for high film strength

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Best Case TCH Fluid Equivalent

1. John Deere Hy-Gard Transmission & Hydraulic Oil

• Multi-purpose fluid for hydraulics, transmissions, final drives, and wet brakes
• Excellent anti-wear and corrosion protection
• Smooth operation of wet brakes and clutches
• Widely used as a dependable substitute for older tractor hydraulic oils

2. Shell Spirax S4 TXM Tractor Hydraulic & Transmission Fluid

• Designed for hydraulic systems, transmissions, PTOs, and wet brakes
• Strong oxidation resistance for longer service life
• Helps reduce brake chatter and transmission noise
• Suitable for mixed-fleet and older tractor applications

3. Mobilfluid 424 Tractor Hydraulic & Transmission Oil

• Universal tractor fluid for hydraulic and power-shift systems
• Good thermal stability under heavy working conditions
• Protects gears, pumps, and bearings from wear
• Commonly used where Case TCH-type fluids are specified

4. Chevron THF 1000 Tractor Hydraulic Fluid

• All-purpose tractor hydraulic/transmission fluid
• Reliable lubrication for wet brakes and clutches
• Helps maintain a consistent hydraulic response
• Suitable replacement for legacy Case hydraulic fluids

5. MAG 1 Universal Tractor Hydraulic & Transmission Fluid

• Designed for hydraulics, transmissions, and wet brake systems
• Provides solid pump and gear protection
• Budget-friendly option for older tractors
• Works well in general farm and utility equipment

Choosing the Right Case TCH Equivalent

1. For Older Tractors (1970s–1990s)

Use a universal tractor hydraulic fluid (UTHF) like:

• Mobilfluid 424
• Chevron 1000 THF
• Hy-Gard

These give good transmission and hydraulic protection.

2. For Pure Hydraulic Systems Only

Use ISO 46 hydraulic oil like:

• Shell Tellus S2 M 46
• Mobil DTE 15M

These are excellent for loaders, pumps, and cylinders.

3. For Cold Weather

Choose a low-viscosity THF:

• John Deere Low-Viscosity Hy-Gard
• Kubota Super UDT2

They improve winter startup and pump lubrication.

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Case TCH vs Hy-Tran: What’s the Difference?

Feature	Case TCH	Hy-Tran
Intended Use	Older tractors/hydraulics	Modern Case IH equipment
Viscosity	~10W / ISO 32–46	Multi-vis, high-performance
Friction Modifier	Basic	Advanced, wet brake optimized
Moisture Handling	Standard	Superior water-handling
Replacement	Mostly outdated	Current Case standard

What is Case TCH Fluid?

Case TCH fluid is a hydraulic transmission oil originally designed for older Case tractors, construction equipment, and power systems. It was formulated as a mid-viscosity, anti-wear lubricant suitable for:

• Hydraulic systems
• Power steering
• Wet brakes
• Torque converters
• Power-shift transmissions

Case TCH fluid is not to be confused with Hy-Tran, although they are used in similar equipment. TCH is typically equivalent to a SAE 10W or ISO 32-46 hydraulic oil with enhanced anti-wear additives.

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Case TCH Fluid Specifications

Most Case TCH fluid substitutes meet or exceed:

• ISO VG 32–46 viscosity range
• SAE 10W / 10W-20
• Anti-wear additive package (AW)
• Rust & oxidation inhibitors
• Good low-temperature flow
• Compatible with older seals and pump materials

How to Replace Case TCH Fluid

1. Warm the equipment so the fluid drains easily.
2. Open the drain plug and drain completely.
3. Remove and replace any hydraulic or suction filters.
4. Flush with a small amount of new fluid (optional but helpful for dirty systems).
5. Refill with your chosen TCH equivalent.
6. Run the equipment, check for leaks, and top up.

FAQs

What does TCH fluid stand for?

TCH stands for Tractor, Crane, and Hydraulic fluid. It is a multi-purpose fluid designed by Case for older tractors and equipment to provide hydraulic, transmission, and wet brake lubrication in a single product.

Is the transfer case oil the same as transmission fluid?

Not always. While some tractors and equipment use the same fluid for both, transfer case oil often has different friction and viscosity properties than standard transmission fluid. Always check the manufacturer’s specification before using a substitute.

What is Case ETHB fluid?

Case ETHB is a high-performance hydraulic and transmission fluid designed for modern Case tractors and construction equipment. It is an updated alternative to TCH and Hy-Tran, offering better anti-wear properties, oxidation resistance, and protection for wet brakes.

What is the alternative to ISO 46?

ISO 46 hydraulic oil can be replaced by equivalent anti-wear tractor hydraulic fluids (THF) or other ISO 46 AW hydraulic oils from brands like Mobil, Shell, Chevron, or Valvoline. These provide similar viscosity and lubrication performance.

What kind of hydraulic fluid does a Case tractor use?

Older Case tractors originally used TCH fluid, while modern Case tractors often require Hy-Tran, ETHB, or other ISO 46 THF equivalents. The exact fluid depends on the tractor’s year, model, and whether it has wet brakes, power steering, or a power shift transmission.