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If you drive an Infiniti G37, choosing the right brake fluid helps keep braking consistent and reduces the risk of corrosion in the hydraulic system. The right fluid supports firm pedal feel, resists moisture uptake, and tolerates the heat generated during spirited driving or heavy stops. This guide covers seven shortlisted brake fluids selected for the Infiniti G37. We evaluated each option on key performance factors like boiling point and moisture resistance, plus compatibility and fluid longevity. Read on to find the types and features that match how you drive.
Looking for other parts? See all Infiniti G37 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Motul RBF 600 Factory Line DOT 4 Racing Brake Fluid, 2 x 500 ml |  |
| Most Popular A crowd favorite that many people choose with confidence | Motul DOT 5.1 Synthetic Brake Fluid, 500 ml |  |
| Best Quality Built to a higher standard if you want something more solid | Motul RBF 600 Factory Line DOT 4 Racing Brake Fluid, 300 ml, 3-Pack |  |
| Best Budget The cheapest option that still gets the job done reliably | Lucas Oil DOT 4 Brake Fluid 12 fl oz |  |
| Most Sold A high-volume bestseller chosen again and again | Valvoline DOT 3 & 4 Synthetic Brake Fluid, 32 oz |  |
| Best Value for Money The sweet spot between price and what you get | Motorcraft PM20 DOT 4 LV Brake Fluid, 16 fl oz |  |
| Best Overall The best all-around choice for most situations | ATE TYP 200 Racing-Quality DOT 4 Brake Fluid, 1 L |  |
1. Motul RBF 600 Factory Line DOT 4 Racing Brake Fluid, 2 x 500 ml
| Material | Synthetic |
|---|---|
| Liquid Volume | 0.5 Liters per bottle |
| Recommended Uses For Product | Brake oil |
| Lower Temperature Rating | 204 Degrees Celsius |
| Upper Temperature Rating | 594 Degrees Fahrenheit |
Motul RBF 600 Factory Line is a high-performance DOT 4 brake fluid intended to maintain consistent pedal feel and brake pressure in demanding conditions. It is typically used as a system fill or after a full brake flush on vehicles that see elevated brake temperatures, such as spirited street driving or track days. Notable features include a synthetic ester-based formulation, high dry boiling point to resist vapor lock, and a strong wet boiling point to slow performance degradation from moisture. In practical terms that means firmer, more consistent braking under repeated hard stops and reduced risk of fade compared with standard DOT 4 fluids. The twin 500 ml bottles make it convenient for a full flush on a two-axle passenger car like the Infiniti G37, though you should confirm required DOT rating before replacing fluid. Limitations are that race-grade fluids can be more hygroscopic and require periodic replacement, and their higher performance properties are unnecessary for purely low-stress daily driving.
Best for: A reliability-focused buyer who wants consistent, fade-resistant braking for an Infiniti G37 used for spirited driving or occasional track days and prioritizes dependable system performance.
Less Ideal for: Drivers who only use their G37 for gentle daily commuting and want a low-maintenance, economy-focused fluid should consider a standard DOT 4 replacement.
- Very high dry boiling point for reduced vapor lock risk under heavy braking
- Strong wet boiling point to retain performance as fluid absorbs moisture
- Fully synthetic formula aimed at reducing heat-related wear on brake components
- Sold in two 500 ml bottles convenient for a complete brake flush on most cars
- Higher-performance specification that is unnecessary for light, everyday driving
- Requires more frequent scheduled replacement if exposed to moisture and track use
Verdict Choose Motul RBF 600 for an Infiniti G37 when you need race-capable, fade-resistant braking; skip it if you only drive lightly and prefer lower-maintenance fluid.
2. Motul DOT 5.1 Synthetic Brake Fluid, 500 ml
| Liquid Volume | 500 Milliliters |
|---|---|
| Viscosity | Lower than DOT 4 and DOT 3 fluids |
| Upper Temperature Rating | 272 Degrees Celsius |
| Material | Polyglycol |
Motul DOT 5.1 is a synthetic polyglycol brake fluid designed for hydraulic brake and clutch systems and is suitable where DOT 5.1, DOT 4 or DOT 3 compatibility is required. It is typically used to flush and refill brake systems on vehicles like the Infiniti G37 when higher boiling performance and ABS compatibility are desired. The key practical benefit is its high dry boiling point (516°F / 272°C), which helps resist brake fade under demanding conditions and long highway commutes where heat build-up can occur. The product comes in a 500 ml bottle that is easy to pour for a single-axle bleed or topping off. Because it is a polyglycol-based DOT 5.1, it mixes with DOT 3 and DOT 4 fluids so it can replace them during a scheduled fluid change, but it is not compatible with silicone-based DOT 5 fluids. Expect stable performance over time and wide acceptance for OEM-recommended service intervals, though a full system flush is recommended when changing fluid types to avoid contamination. The trade-off is that DOT 5.1 attracts moisture like other glycol fluids, so periodic replacement remains necessary to maintain boiling point and corrosion protection.
Best for: Convenience-driven owners who want a high-boiling, easy-to-use brake fluid for routine servicing and occasional spirited driving on an Infiniti G37.
Less Ideal for: Drivers seeking a permanent, maintenance-free fluid or those who must use silicone-based brake fluids should look elsewhere.
- High dry boiling point (516°F / 272°C) reduces brake fade under heavy use
- 100% synthetic polyglycol formula compatible with ABS systems
- Mixes with DOT 3 and DOT 4 fluids for straightforward replacement during service
- 500 ml bottle size is convenient for single-axle bleeds or topping off
- As a glycol-based fluid it absorbs moisture over time and requires periodic replacement
- Not compatible with silicone-based DOT 5 fluids, so a system flush is needed if switching types
Verdict A convenient, high-boiling synthetic DOT 5.1 fluid that improves heat resistance for an Infiniti G37 but still requires regular replacement because it absorbs moisture.
3. Motul RBF 600 Factory Line DOT 4 Racing Brake Fluid, 300 ml, 3-Pack
| Material | Synthetic |
|---|---|
| Liquid Volume | 0.5 Liters per bottle |
| Unit Count | 50.72 Fluid Ounces total |
| Upper Temperature Rating | 594 Degrees Fahrenheit (dry boiling) |
Motul RBF 600 is a 100 percent synthetic polyglycol brake fluid designed to resist vapor lock and maintain pedal performance during hard driving. It is typically used as a flush-and-fill fluid for performance cars and track-driven vehicles where heat tolerance matters. The product is factory sealed with nitrogen to reduce contamination and extend shelf life, and it advertises a very high dry boiling point of 594°F and a wet boiling point of 399°F, which helps reduce brake fade during repeated heavy stops. For an Infiniti G37 used for spirited driving or occasional track days, this fluid delivers firmer, more consistent pedal feel compared with standard DOT 3/4 fluids. Limitations include that it is a DOT 4 glycol-based fluid, so it will absorb moisture over time and requires periodic flushing, and its extreme-temperature benefits are most relevant under demanding conditions rather than routine street driving. Also its clear appearance can make it harder to confirm a full purge of old fluid during a first-time swap.
Best for: Performance-oriented Infiniti G37 owners who push their car with spirited driving or occasional track days and prioritize stable, high-temperature braking performance.
Less Ideal for: Buyers who only use their Infiniti G37 for light commuting and prefer low-maintenance fluids or long service intervals should consider standard street-focused brake fluids instead.
- Very high dry boiling point (594°F) reduces vapor lock and brake fade under heavy use.
- 100 percent synthetic formulation for stable performance and recovery after repeated stops.
- Factory nitrogen fill and sealed bottles help minimize contamination and extend shelf life.
- Glycol-based DOT 4 chemistry absorbs moisture over time, so it needs regular flushing.
- Performance benefits are most noticeable during track or aggressive driving rather than normal city commuting.
Verdict Choose Motul RBF 600 for your Infiniti G37 when high boiling point and consistent pedal feel under demanding driving are the priority, but plan on regular fluid changes due to moisture absorption.
4. Lucas Oil DOT 4 Brake Fluid 12 fl oz
| Brand | Lucas Oil |
|---|---|
| Liquid Volume | 12 Fluid Ounces |
| Item Form | Liquid |
| Specific Uses For Product | Vehicle Brake Systems Maintenance |
| Flash Point | 121 Degrees Celsius |
This Lucas Oil DOT 4 bottle is a straightforward, budget-oriented brake fluid for maintenance and small top-ups on vehicles that require DOT 4. It is used like any standard brake fluid: drain and replace during a fluid service, or add when topping off the master cylinder following repairs. Notable features include DOT 4 formulation compatible with common rubber seals and components and corrosion protection to help preserve system parts. The compact 12 ounce bottle is convenient for one-off jobs or topping off after a bleed, and the product follows manufacturer guidance for DOT 4 use. Limitations are its small volume, which means you may need multiple bottles for a full fluid change on most cars, and there is an environmental and safety caution about chemicals listed for California. For an Infiniti G37 that specifies DOT 4, this offers a low-cost, factory-replacement–style option for routine service, but plan ahead so you have enough fluid for a complete flush if needed.
Best for: Budget-conscious owners seeking an affordable, factory-replacement–style DOT 4 fluid for routine topping off and occasional brake maintenance on their Infiniti G37.
Less Ideal for: Drivers planning a full system flush or a multi-car shop should prefer larger bulk containers or professional-grade sizes to avoid buying multiple bottles.
- Meets DOT 4 specification suitable for vehicles that require DOT 4 fluid
- Formulated to be compatible with standard brake system rubber seals and components
- Corrosion protection helps preserve brake system metal parts
- Small bottle size is handy for topping off after repairs or minor bleeds
- 12 ounce volume is small for a full brake fluid flush on most cars
- Contains chemicals flagged under California regulations for reproductive harm
Verdict A low-cost DOT 4 fluid in a small, convenient bottle that is great for topping off an Infiniti G37 but not ideal for full-system flushes.
5. Valvoline DOT 3 & 4 Synthetic Brake Fluid, 32 oz
| Unit count | 32.0 Fluid Ounces |
|---|---|
| Item form | Liquid |
| Recommended uses | Automotive |
| Specific uses | Vehicle Brake Systems |
Valvoline DOT 3 & 4 Synthetic Brake Fluid is a glycol-based fluid intended for routine brake system service and full fluid flushes on vehicles specified to accept DOT 3 or DOT 4. It mixes with conventional fluids, so it can be used to top off or replace existing glycol-based brake fluid during a flush of the master cylinder, calipers, lines, and ABS components. Notable features include a low-moisture formulation for better vapor lock resistance, elevated boiling points for reduced fade under sustained braking, and corrosion protection for hydraulic components. In practical terms that means firmer pedal feel after a proper flush, predictable ABS operation, and reduced risk of internal corrosion over time. The bottle size is convenient for a single full service on many sedans. Limitations are that it is a standard commercial brake fluid rather than a racing-grade product, and as a glycol fluid it requires careful handling and storage to avoid moisture pickup and contamination during use.
Best for: Risk-averse mainstream buyers who prioritize dependable, factory-spec maintenance products and want a straightforward, proven brake fluid for regular service intervals on a daily-driven Infiniti G37.
Less Ideal for: Drivers who plan track days or need extreme high-temperature performance should choose a specialized racing fluid instead; those who prefer non-glycol fluids for classic cars should consider alternative chemistries.
- Meets DOT 3 and DOT 4 specifications for broad compatibility with vehicles that accept either rating
- Low-moisture formula improves vapor lock resistance and thermal stability during heavy braking
- Mixes with conventional glycol-based brake fluids so it works for top-offs or full system flushes
- Corrosion protection helps preserve ABS modules and hydraulic components over time
- Not formulated for racing or extreme high-temperature track use where specialized fluids are required
- Requires careful storage and handling since glycol brake fluids absorb moisture which lowers boiling point
Verdict A reliable, easy-to-use DOT 3/4 brake fluid that delivers predictable braking performance and corrosion protection for routine service on an Infiniti G37.
6. Motorcraft PM20 DOT 4 LV Brake Fluid, 16 fl oz
| Liquid Volume | 16 Fluid Ounces |
|---|---|
| Recommended Uses | Vehicles specifying WSS-M6C65-A2 (DOT 4 LV) and WSS-M6C65-A1 (DOT 3) |
| Viscosity | Low |
| Item Form | Fluid |
Motorcraft PM20 DOT 4 LV is a low-viscosity brake fluid supplied in a 16-ounce bottle and intended as a factory-style replacement fluid. It is designed for ABS systems and stability control and offers higher boil performance than DOT 3, which helps reduce fade under heavy braking and mountain driving. Typical use is topping off or flushing the hydraulic brake system where a DOT 4 LV specification is required; the low-viscosity formula improves flow at low temperatures so pedal response stays consistent in cold starts. The product lists Ford-recommended spec numbers and is widely used as a direct replacement in compatible vehicles. Limitations are straightforward: the 16 fl oz bottle is small for a full-system flush on many vehicles and the formulation is specified for Ford and Lincoln applications, so buyers should confirm compatibility with their vehicle’s brake-fluid spec before using it in other makes. For maintenance-minded owners who value a factory-style fluid, this bottle is a practical, proven option.
Best for: Practical optimizers who prioritize a factory-style, specification-matching fluid and want a dependable DOT 4 LV option for routine brake maintenance.
Less Ideal for: Those needing large-volume supplies for multiple full-system flushes or owners who cannot confirm that DOT 4 LV meets their Infiniti G37 manufacturer specification should consider other options.
- Low-viscosity DOT 4 LV formula suited for ABS and stability-control systems
- Meets Ford WSS-M6C65-A2 and related specifications for factory-quality fit and function
- Higher boiling point than DOT 3 reduces brake fade during heavy use
- Single 16 fl oz bottle may be insufficient for a complete brake-system flush
- Marketed for Ford and Lincoln specs so compatibility with other brands must be verified
Verdict A factory-spec DOT 4 LV fluid in a handy bottle that delivers better boil resistance and cold-flow response, but you may need more than one bottle for a full system service.
7. ATE TYP 200 Racing-Quality DOT 4 Brake Fluid, 1 L
| Liquid Volume | 32 Fluid Ounces |
|---|---|
| Recommended Uses For Product | Brake System |
| Flash Point | 280 Degrees Celsius |
| Model | TYP 200 |
ATE TYP 200 is a high-performance DOT 4 brake fluid designed to resist boiling and protect brake components under spirited driving. For an Infiniti G37 this product is used the same way as any factory-spec DOT 4 fluid: fill the master cylinder reservoir during a fluid flush or replacement, then bleed the system to remove air. Notable features include elevated dry and wet boiling points, low tendency to foam during filling and bleeding, and corrosion-inhibiting additives that help extend component life. In practice those features translate to a firmer pedal feel under hard driving, reduced risk of vapor lock during mountain or track use, and longer service intervals compared with many standard DOT 4 fluids. The fluid comes in a metal can that is easy to pour and store. Limitations are that it is a traditional glycol-based DOT 4 fluid so it must not be mixed with silicone-based fluids and it will absorb moisture over time, so sealed storage and regular replacement per service practices remain important.
Best for: Balanced owners who want a dependable, higher-performance DOT 4 fluid for the Infiniti G37 that improves pedal feel and longevity without overcomplicating maintenance.
Less Ideal for: Drivers seeking the absolute lowest-viscosity fluid for special low-temperature ABS systems or those who need a silicone-based fluid for specialized applications should look elsewhere.
- High dry and wet boiling points suitable for spirited or mountainous driving.
- Low foaming during filling and bleeding makes bleeding the G37’s system easier.
- Corrosion-inhibiting additives help protect master cylinder, lines, and calipers.
- Packaged in a sturdy metal can that is easy to pour and store.
- Glycol-based DOT 4 formula absorbs moisture over time, requiring periodic replacement.
- Not compatible with silicone-based brake fluids and must be mixed only with other glycol-type fluids.
Verdict A high-boiling DOT 4 fluid that gives the G37 firmer braking under stress and better corrosion protection while remaining a practical, factory-compatible upgrade.
Choosing the Right Infiniti G37 Brake Fluid: Key Factors to Consider
Boiling Point (Dry and Wet)
Boiling point is critical because brake fluid operates under high temperatures. Dry boiling point measures fresh fluid performance, while wet boiling point predicts behavior after moisture absorption. Higher boiling points reduce the risk of vapor lock, which can cause a soft pedal or loss of braking power.
For an Infiniti G37, consider both values to understand short-term peak performance and how the fluid will behave over months of service. A significant gap between dry and wet boiling points indicates sensitivity to moisture uptake, which affects replacement intervals and safety margins.
Hygroscopic Rate and Moisture Resistance
Most common brake fluids absorb moisture from the air, which lowers boiling point and can promote internal corrosion. The hygroscopic rate indicates how quickly the fluid takes on water and therefore how frequently it should be changed.
Choosing a fluid with slower moisture uptake or planning regular brake fluid flushes can extend safe operating life. For vehicles like the Infiniti G37, where consistent pedal feel matters, managing moisture is as important as initial performance specs.
Chemical Compatibility and Seal Safety
Brake fluids must be compatible with the rubber seals, hoses, and caliper materials in the braking system. Incompatible fluids can swell, harden, or degrade seals, causing leaks or reduced braking reliability.
Always check that the fluid meets the vehicle manufacturer’s recommended specification or is known to be safe for passenger car systems. Compatibility influences long-term maintenance and avoids unexpected repairs.
Specification and Industry Standards
Look for fluids that meet recognized standards and specifications, which indicate baseline performance and testing. Standards typically define minimum boiling points, chemical stability, and corrosion resistance required for safe use.
Using a fluid that aligns with accepted specifications helps ensure predictable behavior under normal and severe conditions. It also simplifies service decisions and makes it easier to follow manufacturer guidance for the Infiniti G37.
Intended Use and Performance Needs
Think about how you use the vehicle. Daily commuting places different demands on brake fluid than track days or heavy towing. High performance driving generates more heat and requires fluid with higher boiling points and stronger resistance to fading.
Match the fluid to your driving style. A fluid designed for high-performance use may offer higher thermal tolerance, while everyday options can prioritize longevity and ease of maintenance.
Maintenance Interval and Serviceability
Service interval affects total ownership effort. Some fluids require more frequent flushes because they absorb moisture faster or have additives that degrade over time. Others promise longer intervals but may necessitate careful monitoring of fluid condition.
Consider how comfortable you are with periodic maintenance and choose a fluid that fits your schedule. Ease of flushing and compatibility with standard workshop procedures can reduce service time and help maintain consistent braking performance.
FAQ
What brake fluid specification does the Infiniti G37 typically require?
The vehicle usually has a manufacturer-recommended specification that indicates acceptable fluid types and performance thresholds. Check the owner manual or factory service information for the exact specification and follow its guidance when selecting fluid.
How often should I have a brake fluid flush in an Infiniti G37?
Recommended intervals vary by fluid type and driving conditions, but many drivers plan a flush every one to two years or when fluid tests show high moisture content. Heavy use or high-temperature driving may require more frequent service.
Can I mix different types of brake fluid in my Infiniti G37?
Mixing fluids that share the same basic specification is often acceptable in an emergency, but it can alter performance and service life. Avoid mixing fundamentally different chemistries unless the manufacturer confirms compatibility, and prioritize a full system flush if mixing occurs.
How does moisture in brake fluid affect braking performance?
Moisture lowers the boiling point and can cause vapor formation under high heat, leading to a spongy pedal or reduced braking effectiveness. Moisture can also promote corrosion in metal components, which impacts long-term system reliability.
Is a high-performance brake fluid necessary if I only drive on paved roads?
For everyday on-road driving, a fluid with balanced boiling point and longevity is usually sufficient. High-performance fluids offer higher thermal tolerance but may require different maintenance intervals. Match the fluid to your driving habits to find the best balance.
How We Chose the Best Infiniti G37 Brake Fluid
We focused on properties that directly impact brake performance and system longevity in the Infiniti G37. Selection criteria included dry and wet boiling points to assess heat tolerance; chemical compatibility with the vehicle's seals and lines to avoid leaks and deterioration; corrosion inhibitors to protect internal components; hygroscopic characteristics to evaluate how quickly the fluid absorbs moisture; and recommended service intervals to estimate maintenance frequency. We also considered fluid specification standards and manufacturer engineering guidance relevant to passenger cars. Exclusions: fluids lacking published boiling point data, products without compatibility information for common passenger vehicle systems, and formulations intended solely for race applications that do not provide clear maintenance guidance were not considered. The resulting list emphasizes options that balance everyday drivability, safety margins under heavy use, and predictable maintenance needs for the Infiniti G37.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right brake fluid for an Infiniti G37 means balancing thermal performance, moisture resistance, and compatibility with the vehicle’s hydraulic components. Prioritize fluids that meet the recommended specifications and offer boiling point and corrosion protection suited to your driving style. Remember that maintenance rhythm is part of the decision. Regular fluid checks or periodic flushes address moisture buildup and preserve pedal feel, so weigh longevity against peak performance when making your choice.
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