Oil & Fuel - NAPA Premium Heavy Duty Traactor Hydraulic and Transmission Fluid Specs (2024)

FAQs

What viscosity is tractor hydraulic transmission fluid? ›

Universal Tractor Hydraulic Fluid is a SAE viscosity grade 10W-30 and meets API GL-4 gear oil specifications.

Tractor hydraulic fluid—the most popular packaged item at Pack Logix—has several different names that all mean the same thing. You may see it labeled as tractor hydraulic oil, torque converter fluid, universal tractor transmission oils (UTTO), universal dynamic tractor oil (UDT) and others.

One simple answer would be that tractor fluids and hydraulic oils are products that have different formulations and are for different purposes. They are designed for applications in different tractor and heavy-duty machinery components.

No. They are different fluids. Tractor hydraulic fluid performs a different function; while it may be used in the transmission it also runs the hydraulic cylinders for the three point hitch and loader (if equipped).

AW-46 oil is thicker and has a moderate viscosity, so it is recommended for use in temperate climates where weather is not extreme. A hydraulic system operating in a cold climate, however, would operate better with a lower viscosity oil like AW-32 because the thinner oil will be less resistant to flow on start-up.

ATFs are usually less viscous and designed to work under lower pressures and temperatures than hydraulic fluids. The operating temperature range of hydraulic fluids is larger i.e. they maintain their viscosity better in a broader temperature range. Also hydraulic fluids are very pure compared to ATFs.

"Is it all right to mix an R&O hydraulic oil with an AW hydraulic oil in a hydraulic application?" Mixing oils with different additive packages is never recommended. Doing so could compromise the additive performance of both constituents, cause corrosion of component surfaces and lead to increased mechanical wear.

As far as possible, it is always best to avoid mixing different hydraulic fluids.

Choosing the right hydraulic fluid is crucial to guarantee the best performance and efficiency of the system. Each fluid has its specific characteristics in terms of viscosity, suitable operating conditions, anti-wear properties, etc.

Most hydraulic systems will operate satisfactorily using a variety of fluids. These include engine oil, automatic transmission fluid and oil formulated specifically for the hydraulic compartment.

What's the difference between transmission fluid and hydraulic fluid? ›

Transmission fluid is enriched with additives to improve lubrication, minimize friction, and shield against wear and corrosion. In contrast, hydraulic fluid incorporates additives for anti-foaming, anti-rust, and anti-oxidation properties, along with viscosity stability under diverse conditions.

We highly recommend checking out UTTO and UNITRAC - our premium lubrication fluids developed for tractor transmissions, as well as other similar equipment. UTTO and UNITRAC account for heavy-duty transmission fluids and are recommended for a range of tractor components.

Failure to use the correct proper oil will not only decrease the efficiency and performance of the hydraulic system, but it can also seriously shorten the life of the system and the many components that comprise it.

Transmission fluid and hydraulic fluid are both petrochemicals. They'll mix and you'll have a whole other fluid that will have different properties from the original two. It could be beneficial or deleterious depending on the mixture.

Based on the division of hydraulics into hydrodynamics and hydrostatics, there are different hydraulic fluids. Hydraulic fluids for hydrodynamic applications are called power-transmission oils. Hydraulic fluids for hydrostatic application are called hydraulic oils.

Both Hy-Gard fluids are multi-viscosity fluids with high-viscosity index. Low-Viscosity Hy-Gard has an ISO 32 viscosity grade. Hy-Gard viscosity places it between ISO 46 and 68 grades.

The appropriate viscosity range for hydraulic oil varies depending on the type of hydraulic system and operating conditions. Most equipment works optimally with an operating viscosity range of 13 to 860 cSt, with the best-performing viscosity of the hydraulic oil typically between 16 cSt (80 SUS) and 40 cSt (180 SUS).

We highly recommend checking out UTTO and UNITRAC - our premium lubrication fluids developed for tractor transmissions, as well as other similar equipment. UTTO and UNITRAC account for heavy-duty transmission fluids and are recommended for a range of tractor components.