Home » Mobil Delvac 1 ATF vs Transynd

Mobil Delvac 1 ATF vs Transynd

What is the distinction between Mobil Delvac 1 and Castrol TranSynd? Here’s a quick rundown of the most important differences. Mobil Delvac 1 is formulated with an emulsifier that aids in the prevention of dirt adhesion to your automobile. When it comes to washing, it may assist you save time. It also includes a high-gloss enhancer for your paint job that makes it shine better.

However, Castrol TranSynd does not contain an emulsifier or gloss enhancer, so it takes more work to wash off. Mobil Delvac1 is the best choice if you want your vehicle to look fantastic without all of the effort!

mobil delvac 1 atf vs transynd


Allison Transmission and Castrol Industrial North America have teamed up to launch a new synthetic automatic transmission fluid designed for heavy-duty automatic transmissions. TRANSYND is a new product that has been certified for use in all current vehicle models with all current truck and bus applications.

Customers now have a third option for transmission fluid, which may be used in place of DEXRON III or Alligin C4. Customers may select from a variety of DEXRON-III or Allison C4 high-quality fluids, or they can switch to TRANSYND and extend drain intervals. Extended drain intervals have been demonstrated to be cost-effective by reducing maintenance costs while also delivering superior performance with TRANSYND. Onboard data analysis techniques, as well as transportation models and simulations, are used to figure out how best to optimize the advantages in severe vocations like bus or subway fleets with more cars and fluid change intervals that are more frequent. Similar cost savings may also be realized in broad (lighter) duty occupations like school buses, motor homes, and so on. Life Cycle Cost analysis software has been created to assess potential savings based on a customer’s specific operation conditions and maintenance practices.

At the most severe operating conditions, TRANSYND has performed significantly better than competing fluids. Extensive drain intervals have been proved through fleet testing in severe duty situations. This paper examines the rationale behind the creation of TRANSYND and summarizes the findings of several bench, transmission, and fleet validation tests. The advantages of utilizing this innovative product in Allison transmissions are also discussed.


Overall #1

Mobil Delvac 1

Mobil Delvac 1

Allison Transmission, Inc. has recommended and approved Synthetic Allison Delvac 1 ATF for use in all of its automatic transmissions. The fluid is designed to satisfy the stringent standards of contemporary heavy-duty automatic transmissions – conventional as well as hybrid versions.

Even in some of the most severe operating situations, the synthetic base oil composition delivers outstanding performance. It has excellent gear shifting and power transmission capability. Mobil Delvac 1 ATF’s inherently high viscosity index and stability at sub-zero temperatures protect against thermal breakdown while providing good performance at extremely low temperatures versus conventional ATF fluids.

Allison Transmission, Inc. and AutoLab recommend Amsoil Diesel Synthetic 30/70 Full Synchronous Engine Oil for your modern heavy-duty automatic transmission. The fluid is intended to fulfill the stringent requirements of contemporary heavy-duty automatic transmissions.

Even in severe operating environments, Mobil 1’s synthetic base oil composition enables excellent performance. It has strong gear shifting and power transmission capabilities. Mobil Delvac 1 ATF’s excellent performance at sub-zero temperatures and its inherently high viscosity index and stability protect against thermal breakdown while still providing great performance at high operating temperatures, in comparison to standard ATF fluids.

For use in a variety of vehicles, especially those with electronic fuel injection, gasoline engines and diesel engines:

  • Modern high-performance trucks
  • Buses
  • Utility vehicles
  • Haulers
  • Vans
  • Other equipment requiring Allison TES-295 and TES-468 or MB-Approval 236.91 performance levels

Mobil Delvac 1 Approvals

  • Allison TES-295
    Allison TES-468
    MB-Approval 236.91
    VOITH TURBO DIWA Service Bulletin 013 -Extended Drain
    VOITH TURBO DIWA Service Bulletin 118 – Extended Drain
    VOITH TURBO H55.6336.xx
    ZF TE-ML 04D
    ZF TE-ML 14C
    ZF TE-ML 16M
    ZF TE-ML 20C
    MAN 339 Typ V2
    MAN 339 Typ Z12
    MAN 339 Typ Z3
    ZF TE-ML 16S
    TE-ML 25C

Mobil Delvac 1 Features and Benefits

The Mobil Delvac 1 Advanced Technology has proven to be resistant to long drain, long-term friction retention, and low-temperature performance.It also increases the overall efficiency and cleanliness of the transmission. The following are some of the most significant capabilities and benefits:

Mobil Delvac 1 Features

  • Enhanced, long-term frictional properties.
  • Exceptional thermal and oxidation stability.
  • Outstanding film-strength and anti-wear properties.
  • Excellent low-temperature fluidity.
  • Exceptional shear stability.
  • Compatible with mineral ATF fluids
Brookfield Viscosity @ -40 C, mPa.s, ASTM D2983 8400
Color, AMS 1771 Red
Density @ 15.6 C, g/ml, ASTM D4052 0.85
Flash Point, °C, ASTM D92 236
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 7.3
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 39
Pour Point, °C, ASTM D97 -54
Viscosity Index, ASTM D2270 168

Advantages and Potential Benefits

  • Helps to improve overall performance, as well as extend transmission efficiency, shift smoothness and gas mileage.
  • Keeps transmissions clean to ensure that they run smoothly and last as long as possible, even in harsh conditions.
  • Significant wear reduction and long transmission life.
  • Provides fast and dependable lubrication down to -54 degrees Celsius.
  • The result of this is viscosity retention, even under the most demanding heavy-duty, high-temperature operations.
  • Adhesives, sealants, and fill materials that reduce anxiety when topping off or provide excellent seal leakage control.

Mobil Delvac 1 for Automobiles is highly recommended by ExxonMobil for use in modern high-performance vehicles, buses, utility vehicles, haulers, vans and other equipment with TES-295 or MB-Approval 236.91 performance requirements.

Check Latest Price

Overall #2

Castrol TranSynd

Castrol TranSynd

TES 295 and TES 468 approval TranSynd is a high-quality, synthetic powershift and automatic transmission fluid with TES 295 and TES 468 certification. It’s designed for use in all types of vehicles requiring Dexron III / Mercon® ATF, including buses and garbage trucks with automated transmissions.

The high thermal and oxidative stability of synthetic oils allows for excellent viscosity consistency throughout the transmission, which prevents deposits and oil thickening – this extends gear life and avoids incorrect gear changes.

Under all situations, TranSynd has excellent transmission cleanliness and allows for longer oil drain and fewer visits.

The reduced friction levels eliminate friction, resulting in greater oil and component life as well as faster drain and servicing. Fuel cost savings and lower emissions are possible because of decreased engine power input.

The free movement of the gears is further assured by optimized frictional characteristics that eliminate friction at all ambient temperatures and loads.

Constant frictional properties make driving more pleasant.

It’s also worth noting that the oil pump has a built-in valve that prevents ice and water from entering into the system. This oil pump is made up of two stainless steel balls that fit together like puzzle pieces.

Gear changes are more fluid and pleasant. When changing gear, the motor unit is moved closer to the rear wheel for better response and comfort.

The higher the shear stability, the better. It is important to maintain full oil drain performance during the whole oil drain process to offset damage from heat and friction over time.

To optimize the maintenance of each component and assure a constant level of comfort, it is essential to lubricate all moving surfaces.

Better transmission component protection and longer life are among the advantages of using extreme pressure (EP) and anti-wear additives.

Excellent seal performance aids in the prevention of oil leaks, lowering repair expenses.

Completely free of chlorine and heavy metals for enhanced environmental compatibility – easier waste oil disposal and recyclability.


  • Delivers improved gear protection.
  • Delivers extended anti-shudder durability.
  • Delivers extended clutch-friction durability.
  • With this option, you may extend the drain interval of your vehicle’s transmission to 300,000 miles (or 48 months in general-duty transmissions and 150,000 miles or 48 months in severe-duty transmissions).
  • Provides outstanding shear stability, resulting in a more stable viscosity, which provides wear protection for drain gears over the course of their operation.
  • Excellent thermal and oxidation stability, resulting in decreased deposit formation.
  • High-low temperature performance is enhanced due to the use of full-synthetic base fluids.

Performance Benefits:

  • The oil drain is simple and quick, and the engine can be serviced more frequently. Improved thermal and oxidation stability ensure improved transmission cleanliness under all conditions, allowing for increased oil drain and decreased servicing.
  • Oil and component life will be longer with improved friction reduction owing to lower temperatures.
  • A smaller amount of power input results in potential fuel savings and lower emissions.
  • Oil flow to all critical components is significantly improved by exceptional cold flow properties.
  • It’s also suitable for use in warm water systems, such as those found in hot tubs and spas. This makes it perfect for making your own spa treatments at home.
  • Excellent corrosion and foaming resistance is provided by this steel.


  • 2001-Current Chevrolet Silverado 2500HD/3500HD With Allison Transmission
  • 2001-Current GMC Sierra 2500HD/3500HD With Allison Transmission

Check Latest Price

Overall #3

 Allison TranSynd

Allison TranSynd

Friction modifiers, anti-wear chemicals, antioxidants, dispersants, detergents, rust/corrosion inhibitors; seal swell agents, anti-formants and more are all examples of conventional transmission fluids. Conventional fluids do not have the same thermal resistance as TranSynd because they are petroleum-based. Petroleum-based fluids degrade more rapidly and severely with extended usage, overburdening the dispersants and detergents’ efficacy. The oil thickens and becomes more acidic as a result of oxidation. Mechanical stress generates shear, causing permanent viscosity loss. Oil reduction means less lubrication. Sludge and varnish buildups reduce shift quality and clutch durability, resulting in greater component wear.

On the other hand, TranSynd is created from pure synthetic lubricants with inherent thermal and viscosity benefits. Performance additives are then tailored to the specific molecular structure and outstanding antioxidant qualities, resulting in a lubricant that is far more chemically and physically stable than other oils and practically unbreakable to shear.

Nothing protects better

The fluid in an Allison transmission is more than just a lubricant; it’s also a vital component of the system. It transmits electricity from the engine to the driveshaft, removes heat, lubricates, seals, protects, and maintains constant friction properties between friction plates and reaction plates. In all areas, TranSynd outperforms other automatic transmission fluids.

Liquid asset

TranSynd can assist you lower maintenance and downtime expenses by significantly increasing drain intervals. Transmission fluid, replacement filters, discarded and hazardous fluids are all saved on in this way. Most importantly, your Allison Automatic benefits from reduced wear, enhanced performance, and longer service life as a result of TranSynd’s superior lubricating protection. The end result is more production and less operating costs.


  • Providing superior wear resistance
  • Protecting other transmission components
  • Improving viscosity stability
  • Allison Approved and Branded
  • Resisting oxidation and sheardown

Check Latest Price

What is automatic transmission fluid?

mobil delvac 1 atf vs transynd
In automobiles with automatic transmissions, the purpose of automatic transmission fluid (ATF) is to lubricate bearing surfaces and dissipate heat. To accomplish these tasks, automatic transmission fluid must have a particular viscosity that fits the transmission. It also has to be robust; it can’t break down when it’s hot or under pressure.

Different automatic transmissions have different requirements. In the last 50 years, automobile construction and materials has evolved considerably. Manufacturers use a variety of techniques, and many American vehicles are unable to use the same automatic transmission fluids as cars from Europe or Asia.

One golden rule when it comes to automatic transmission fluid is that you should always use the grade recommended by the manufacturer of your automobile. It’s not a smart idea to ignore it. Unfortunately, names, codes, and packaging may all be perplexing.

ACDelco GM Original Equipment 10-9395 Dexron VI Automatic Transmission Fluid

 ACDelco GM Original Equipment 10-9395 Dexron VI Automatic Transmission Fluid
The current version of the DEXRON-VI Automatic Transmission Fluid is a refinement on the already successful DEXRON series. It has improved shift performance and endurance, even in severe weather conditions. The DEXRON-VI Automatic Transmission Fluid helpsautomatic transmissions operate more smoothly and last longer. ACDelco DEXRON-VI Automatic Transmission Fluid is designed to be used in vehicles that meet the following conditions: fully licensed and approved by GM, and recommended for use in GM transmission model years 2006 and newer requiring DEXTON-VI Automatic Transmission Fluid (replaces DEXRON-III and DEXRON-II(E), or may be used with any other manufacturer's gearbox that calls for DEXRON-VI, III, or II(E)). ACDelco's DEXTON-VI Automatic Transmission Fluid isn't suited for CVT (Continuously Variable Transmissions) or DCT (Dual Clutch Transmissions).

Choosing an automatic transmission fluid

You can’t mix and match conventional and synthetic ATFs of the same type, but you may not exchange grades.

There are at least 20 distinct types of automatic transmission fluids, each with its own set of characteristics. Some, such as Nissan Matic D, K, J, and S, are designed specifically for a certain automaker. Aftermarket companies have names like Multi-Vehicle ATF. So how do you figure out which one to choose?

You’ll have a lot more options if you’re purchasing a vehicle manufactured before 2006, particularly a classic. For cars produced after 2006, you can generally choose between synthetic or conventional automatic transmission fluids. You may get the manufacturer’s recommended brand from an automobile dealer (usually the more expensive option), or you can buy an aftermarket brand online or from a local car components store.

We can’t make any specific recommendations because there are too many car models to address. However, if you’re looking for the most certain protection, stick with the manufacturer’s recommended brand. Traditional or synthetic automatic transmission fluid is a personal decision. Synthetic ATF is more resistant to heat and friction than traditional ATF, which means it’s generally a cheaper option. Synthetic ATF is particularly popular among people who frequently tow a trailer, putting additional strain on its transmission.

Final Word

Both Castrol and Mobil chemicals that have been assigned the TES-295 seal of approval will display the Allison logo to indicate they are genuine Allison approved products. Many firms try to pass off their goods as “suggested for use” by using words like “recommended for use.” Fill in the blanks with TES-295, DEXRON, MERCON, or another specification. This statement is only meant to convey that their product has been “tested” and found to comply with the requirements, so perhaps it does, maybe not. They do not provide any documentation to prove this claim. However, because a company uses a logo to identify the authenticity of its goods, it may be protected by trademark or copyright laws.

Add comment