Both contenders are DOT 4 brake fluids which are an essential part of your brake system. It greases the system’s inner mechanisms and transmits the force of your foot on the pedal into a fastening force that halts your vehicle.
Both are used for hydraulic motor vehicle brake and clutch systems manufactured by Ate.
And both contenders need to be replaced after the same time of use as they have an equal maximum amount of moisture content.
They meet & exceed the requirements of FMVSS 116 DOT 4 and SAE J1704 standards.
Typ 200 has excellent water resistance capability. It has the highest boiling point retained of all ATE brake fluids.
The mixture is controlled by water-bound polyethylene glycol ether boric acid esters and additives that are specially formulated for this high-performance fluid.
The wet boiling point is approximately maximized to allow longer intervals between brake fluid replacements.
It meets and exceeds the requirements of ISO 4925-class 4 standard.
SL.6 is a brake fluid with low viscosity at extremely low temperatures and is mainly compatible with brake systems that are operated by hydraulic components electrically in which brake pressure is applied to the braked wheel.
It meets and exceeds the requirements of superior ISO 4925-class 6 standard
In comparison to SL.6, Typ 200 is more economical, has lesser chances to boil under hot braking conditions, and provides comparatively more effective braking. While SL.6 has superior ISO 4925 Class-6 standard, consumes less fuel due to lower kinematic viscosity, and circulates more easily throughout the system but lacks its contender in cost-effectiveness.
Table of Contents
Lets take a quick look at the spec table and features of both:
| Specifications | Typ 200 | SL.6 |
| Engine type | Hydraulic motor vehicle brake and clutch systems | Hydraulic motor vehicle brake and clutch systems |
| Appearance | Yellow | Yellow |
| Condition | Homogenous, transparent | Homogenous, transparent |
| Shelf Life (At storage Temperature of -20 oC to -40 oC | Up to 5 Years | Up to 5 Years |
| Cost of 1 liter | 24.99 $ | 29.86 $ |
Features
Typ 200;
- Excellent fluid endurance due to high boiling point.
- Excellent water absorption capability.
- The vapor lock problem is minimized allowing the uninterrupted flow of the liquid.
SL.6;
- The maximized wet boiling point allows extended intervals between the alterations in brake fluid.
- After heavy braking, the possibility of vaporization is reduced due to brake fluid being watered into the heated brake calipers.
Do they both meet Lubrication Standards?
The brake fluids are defined by some internationally organized standards which ensure smooth functioning of the brake fluid.
Both contenders meet and exceed the requirements of the below-mentioned standards.
| Standard | Typ 200 | SL.6 |
| DOT | FMVSS-116 DOT 4 | FMVSS-116 DOT 4 |
| SAE | J1704 | J1704 |
| ISO | 4925-Class 4 | 4925-Class 6 |
The DOT standards are established on the American FMVSS-116 standard of the Department of Transportation (DOT).
It is a high-performance nonpetroleum vehicle brake fluid with a high wet boiling point.
Both contenders have extensive applications in conventional hydraulic brakes and clutch systems as a result of DOT 4 specifications.
The swelling and lubrication properties of the seal help prevent fluid leakage and decrease component wear, consistent thermal and oxidation performance endures fluid degradation and ensured vapor lock phenomena.
DOT 4 satisfies the specifications of SAE J1704, FMVSS No. 116, ISO 4925 – Class 4. Low viscosity brake fluid is one of the top specifications of ISO 4925 Class 6 standard.
The SAE J1704 standard covers brake fluids of the nonpetroleum type which are based on glycols, glycol ethers, and borates of glycol ethers, used in the braking system of any motor vehicle.
Under frosty conditions, these fluids are not suitable for use.
This standard makes the fluid compatible with braking systems sealed with rubber cups.
SL.6 has a superior ISO 4925 class-6 standard which specifies it as a low viscosity brake fluid and makes the fluid circulate faster and flow more easily.
Wet and Dry Boiling Points of both
Brake fluid determines two types of boiling points, dry boiling point, and wet boiling point.
When the brake fluid is exposed to air, it absorbs moisture from the air.
The boiling before the absorption is called the dry boiling point.
While the boiling after the absorption of moisture is called the wet boiling point.
The wet boiling point determines the performance of brake fluid under hot braking conditions. The higher the value of the wet boiling point, the lesser the chances that the brake fluid will boil under hot braking conditions.
It is observed from the results that Typ 200 has comparatively lesser chances to boil under hot braking conditions
On the contrary, dry boiling point determines the effectiveness of braking in extreme conditions.
Its higher value indicates more effective braking.
Typ 200 is said to have comparatively more effective braking than its competitor.
| Parameter | Typ 200 | SL.6 |
| Dry Boiling point | 280 °C | 265 °C |
| Wet boiling point | 198 °C | 175 °C |
How different are they when it comes to viscosity?
The viscosity of a brake fluid plays a key role in the safety of vehicles.
Additionally, it affects the way the clutch or the brake performs, it is analyzed usually at temperatures of -40°C and 100°C.
The lower value of the viscosity makes a fluid thinner in consistency.
A thinner fluid allows the circulations of the brake fluid throughout the system faster and consumes less fuel.
SL.6 has a lower viscosity value at both temperatures as compared to its opponent.
Hence it will flow more easily and will consume less fuel.
| Parameter | Typ 200 | SL.6 |
| Viscosity at -40 °C | 1,400 mm²/s | 700 mm²/s |
| Viscosity at 100 °C | 2.2 to 2.8 mm²/s | 1.7 to 2.3 mm²/s |
Water Content in both Brake Fluids
The interval of replacement of brake fluid is analyzed by the water or moisture content absorbed by it. Karl Fisher’s testing method determines the moisture content of fresh brake fluid on average is 0.1%. However, this reading may vary due to different reading meters, brake fluid is hygroscopic due to which it absorbs moisture. The brake fluid will start absorbing a certain amount of moisture after some time due to heat production by the brakes. After huge absorption of moisture, the fluid loses the ability to stop and can rust to the wheel cylinders. When the brake fluid has absorbed the maximum amount of moisture, it has to be replaced.
Both contenders have equal amounts of maximum moisture content. Hence, both will require replacement after the same period.
| Parameter | Typ 200 | SL.6 |
| Water content | Max 0.20% | Max 0.20% |
Which one of them costs less?
Superior ISO 4925 Class-6 standard, lower consumption of fuel, and fast circulation due to thinner fluid consistency make SL.6 comparatively more expensive than its contender.
The price of 1 liter of Ate Typ 200 and Ate SL.6 is 24.99 $ and 29.86 $ respectively.
Summary
Both contenders;
- are DOT 4 brake fluids.
- are used for hydraulic motor vehicle brake and clutch systems.
- have an equal amount of moisture content.
- meet and exceed the requirements of FMVSS 116 DOT 4 and SAE J1704 standards.
Typ 200;
- is more economical than its opponent.
- meets and exceeds the requirements of ISO 4925 Class-4.
- has lesser chances to boil under hot braking conditions.
- have comparatively more effective braking.
SL.6;
- meets and exceeds the requirements of superior ISO 4925 Class-6 standards.
- consumes less fuel due to lower kinematic viscosity.
- circulates more easily throughout the system.
