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If you own an Infiniti G35, choosing the right transmission fluid matters for smooth shifting, heat control, and long drivetrain life. The wrong fluid can lead to harsh shifts, increased wear, or overheating in everyday driving and spirited use. This guide covers seven shortlisted transmission fluids that suit the G35, and explains the core evaluation criteria used to pick them. Read on to understand the factors that affect performance and maintenance so you can make a confident selection.
Looking for other parts? See all Infiniti G35 parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | Nissan Genuine Matic-S Transmission Fluid 999MP-MTS00P (12 Quarts) |  |
| Best quality Built to a higher standard if you want something more solid | Nissan Genuine NS3 Transmission Fluid — 6-Quart Pack |  |
| Best Value The sweet spot between price and what you get | ACDelco Dexron-VI Automatic Transmission Fluid, 1 gal |  |
| Best Budget The cheapest option that still gets the job done reliably | Valvoline MaxLife Multi-Vehicle Full Synthetic ATF, 1 Quart |  |
| Highest Rated A top-rated pick with lots of positive feedback | Valvoline MaxLife Multi‑Vehicle Full Synthetic ATF, 1 Gallon |  |
| Most popular A crowd favorite that many people choose with confidence | Valvoline MaxLife Multi‑Vehicle Full Synthetic Automatic Transmission Fluid, 1 gal (case of 3) |  |
| Best Seller A high-volume bestseller chosen again and again | Nissan Genuine Matic-S Automatic Transmission Fluid (5 Quart Pack) |  |
1. Nissan Genuine Matic-S Transmission Fluid 999MP-MTS00P (12 Quarts)
| Material | Synthetic |
|---|---|
| Liquid Volume | 12 Quarts |
| SAE J300 Viscosity Grade | 5W-20 |
| Unit Count | 384 Fluid Ounces |
This is factory-quality Nissan Matic-S transmission fluid packaged as a 12-quart unit for service or rebuild jobs. It is designed for use where Nissan specifies Matic-S and is typically used for fluid changes, valve body work, or topping off during maintenance. The fluid is synthetic and listed with a 5W-20 SAE J300 viscosity grade, which helps maintain stable hydraulic performance and smooth shift operation in compatible transmissions. Buying genuine Nissan fluid removes guesswork about compatibility and can simplify servicing for owners who prefer factory-recommended products. The package is sized for jobs that require multiple quarts or a full service, but you may need a pump or adapter to transfer fluid without spills. This is a straightforward, no-frills option aimed at keeping transmission operation close to factory behavior rather than offering aftermarket performance enhancements.
Best for: Balanced owners who prioritize reliability and correct fitment will appreciate a factory-recommended fluid for regular maintenance and transmission servicing.
Less Ideal for: Drivers seeking a multi-vehicle aftermarket fluid, specialty performance formula, or a small single-quart purchase should consider alternative products or package sizes.
- Factory-formulated Matic-S fluid ensures compatibility with Nissan-specified transmissions
- Synthetic base helps preserve shift quality and hydraulic stability
- Large 12-quart package supplies enough fluid for full service or multiple changes
- Requires a pump or proper fitting to fill without spills since bottle is not pour-optimized
- Not a universal aftermarket fluid so only appropriate where Matic-S is specified
- No bundled accessories such as funnels or adapters included
Verdict: Choose this genuine Nissan Matic-S fluid to maintain factory-spec transmission performance and compatibility for Infiniti and Nissan vehicles that require Matic-S.
2. Nissan Genuine NS3 Transmission Fluid — 6-Quart Pack
| Material | Synthetic & Mineral Blend |
|---|---|
| Liquid Volume | 6 Quarts |
| Unit Count | 192 Fluid Ounces |
| Manufacturer Part Number | 999MP-CV0NS3-6PK |
This is Nissan genuine NS3 transmission fluid packaged as six quarts, intended for CVT applications and other transmissions specified by the manufacturer. It is typically used for drain-and-fill service or topping off during routine maintenance and is engineered to match Nissan factory specifications for smooth gear engagement and consistent hydraulic control. The product is a synthetic and mineral blend supplied in bottles that are easy to pour, and a six-quart pack covers a full service for many vehicles. Buyers will appreciate that it is the manufacturer-specified fluid so there is no guessing about compatibility with Nissan/Infiniti CVT systems. Limitations are that it is a single-spec fluid designed for Nissan transmissions only, so it is not a universal transmission oil for non-compatible gearboxes, and proper service still requires following flush and fill procedures recommended for the G35. Also, occasional reports note shipping leakage, so inspect bottles on arrival before use.
Best for: Performance-oriented owners seeking factory-specified fluid for smooth, consistent CVT operation and predictable shift feel during spirited driving and regular maintenance.
Less Ideal for: Drivers who need a universal or aftermarket multi-vehicle transmission fluid or those unwilling to verify exact fluid spec requirements for their transmission should consider other options.
- Manufacturer-formulated NS3 fluid matched to Nissan/Infiniti CVT specifications
- Six-quart pack sufficient for a full drain-and-fill on most vehicles
- Synthetic and mineral blend balances longevity with smooth shift performance
- Bottle packaging simplifies pouring and handling during servicing
- Designed specifically for Nissan/Infiniti NS3 applications so not suitable for transmissions that require different fluid specifications
- Some reviewers reported damaged or leaking bottles during shipment, requiring inspection on receipt
Verdict: Choose this if you want factory-specified NS3 fluid to preserve the CVT shift quality on an Infiniti G35; skip it if you need a universal transmission oil.
3. ACDelco Dexron-VI Automatic Transmission Fluid, 1 gal
| Liquid Volume | 1 Gallons |
|---|---|
| Unit Count | 128.0 Fluid Ounces |
| SAE J300 Viscosity Grade | 5W-40 |
| Recommended Uses For Product | Transmission Fluid |
This ACDelco Dexron-VI fluid is a full synthetic automatic transmission fluid designed to provide consistent shift feel and extended service life compared with older Dexron formulations. It is typically used for fluid changes or top-ups in transmissions that specify Dexron-VI, and the one-gallon jug is convenient for a nearly complete service on many passenger cars. The formula emphasizes friction durability, viscosity stability, aeration and foam control, and oxidation resistance, which translates to smoother shifts, reduced foaming under heat, and longer drain intervals in routine driving. It is not intended for CVT or dual-clutch gearboxes, so confirm your Infiniti G35 uses a Dexron-compatible automatic transmission before using. Because it is a factory-quality, OEM-licensed fluid, it is a safe choice for owners who want a straightforward replacement that matches manufacturer recommendations, though a single gallon may not cover transmissions that require more than four to five quarts for a full overhaul and you may need additional quarts for a complete flush.
Best for: Practical optimizers who want a factory-quality, plug-and-play transmission fluid that improves shift consistency and extends service intervals without fuss.
Less Ideal for: Owners seeking specialty fluids for CVT or dual-clutch gearboxes or those who prefer high-performance or aftermarket friction-modified formulations tailored to racing applications.
- Factory-licensed Dexron-VI formulation compatible with vehicles calling for Dexron fluids
- Full synthetic base for improved oxidation resistance and viscosity stability
- Formulated to control aeration and foam for consistent shift performance
- One-gallon jug covers a multi-quart service without multiple small bottles
- Not suitable for CVT or dual-clutch transmissions
- Single jug may be insufficient for full transmission overhauls that require more than one gallon
Verdict: A practical, OEM-licensed Dexron-VI full synthetic in a one-gallon jug that delivers reliable shift performance and longer drain intervals for vehicles needing Dexron fluids, as long as your Infiniti G35 uses a Dexron-compatible automatic transmission.
4. Valvoline MaxLife Multi-Vehicle Full Synthetic ATF, 1 Quart
| Material | Synthetic |
|---|---|
| Liquid Volume | 1 Quarts |
| Flash Point | 394 Degrees Fahrenheit |
| Viscosity | 1 |
Valvoline MaxLife Multi-Vehicle ATF is a full synthetic transmission fluid designed for broad-fit use across many light-duty vehicles. It is typically used during transmission fluid service or top-ups to improve shift feel, reduce wear, and help prevent leaks by conditioning seals. Notable features include advanced anti-wear additives, improved thermal and viscosity stability, and seal-conditioning agents that aim to prolong fluid and component life. For a Scion tC, this fluid offers consistent operation across a range of temperatures and is recommended for many modern automatics and some CVTs, which makes it convenient for owners who want a single product that covers multiple vehicles or future trades. The practical benefits are smoother gear engagements, reduced risk of transmission deposits, and potentially longer drain intervals compared with conventional ATF. Limitations include that a multi-vehicle formula may not match every manufacturer-specific fluid specification exactly, so always confirm compatibility with the tC service recommendations before a full fluid swap.
Best for: Convenience-driven owners who prefer a single, full synthetic ATF that covers multiple light-duty vehicles and simplifies maintenance decisions.
Less Ideal for: Owners who require a manufacturer-specific transmission fluid prescription for a specialized transmission or who prefer fluids explicitly listed in the vehicle service manual for guaranteed compatibility.
- Full synthetic formulation for better thermal and viscosity stability than conventional ATF
- Seal-conditioning agents to help prevent leaks and maintain seal elasticity
- Anti-wear additives designed to reduce transmission wear and extend component life
- Suitable for a wide range of light-duty automatics and many CVTs, simplifying fluid choice across vehicles
- Multi-vehicle formulation may not meet every manufacturer-specific ATF spec for certain transmissions
Verdict: A ready-to-use, full synthetic multi-vehicle ATF that simplifies maintenance while improving shift quality and transmission protection.
5. Valvoline MaxLife Multi‑Vehicle Full Synthetic ATF, 1 Gallon
| Material | Synthetic |
|---|---|
| Liquid Volume | 1 Gallons |
| Viscosity | 1 |
| Flash Point | 394 Degrees Fahrenheit |
| Model | MaxLife Multi-Vehicle ATF |
Valvoline MaxLife Multi‑Vehicle ATF is a full synthetic automatic transmission fluid intended to replace many factory fluids in light‑duty passenger vehicles. It is used like any ATF during fluid changes or top‑offs and is formulated with conditioning additives to reduce wear, help prevent leaks, and improve shift quality in older or high‑mileage transmissions. Notable features include broad manufacturer coverage and enhanced high and low temperature stability so the fluid holds viscosity and friction characteristics across varied driving conditions. For an Infiniti G35 this product can serve as a reliability‑focused service fluid when the vehicle’s required ATF specification matches one of the listed compatibilities, offering smoother shifts and extended seal life compared with conventional fluids. Limitations are that compatibility depends on the G35 model year and exact factory spec, so you must confirm the recommended fluid type before switching, and a multi‑vehicle ATF may not precisely match every factory friction formula used in specific Infiniti transmissions.
Best for: Reliability‑focused buyers who prioritize long transmission life and consistent shift behavior in an Infiniti G35 and prefer a tested, broadly compatible synthetic ATF for maintenance or fluid replacement.
Less Ideal for: Drivers who require a specific factory‑specified Infiniti/Nissan transmission fluid for warranty compliance or precise factory friction matching should choose the exact manufacturer‑recommended fluid instead.
- Full synthetic formula for improved thermal and viscosity stability versus conventional ATF
- Wide manufacturer compatibility covering many automatic and CVT applications
- Additives to condition seals and reduce wear, which can extend transmission life
- Designed for smoother gear engagements and consistent shift feel across temperatures
- Not guaranteed to match every Infiniti G35 factory friction spec so verification is required before use
- A multi‑vehicle formulation may differ from a factory‑specified fluid’s exact friction characteristics
Verdict: A dependable full synthetic multi‑vehicle ATF that can extend transmission life in an Infiniti G35 if its factory fluid spec is confirmed to be compatible.
6. Valvoline MaxLife Multi‑Vehicle Full Synthetic Automatic Transmission Fluid, 1 gal (case of 3)
| Material | Synthetic |
|---|---|
| Liquid Volume | 3 Gallons |
| Unit Count | 384 Fluid Ounces |
| Package Information | Bottle |
Valvoline MaxLife Multi‑Vehicle ATF is a full‑synthetic transmission fluid formulated to support smooth shifting, reduce wear, and help preserve seals in higher‑mileage gearboxes. It is used as a direct fill or service refill for compatible automatic transmissions and is marketed as suitable for many Ford, GM, Toyota and Honda applications and other ATF specifications. In everyday use it delivers good low‑temperature flow and stable film protection at higher temperatures, which helps maintain drivability during city and highway driving. Seal conditioners help reduce external leaks on older units and anti‑wear additives aim to extend transmission life. The multi‑vehicle formulation makes it convenient to keep on hand for routine fluid changes or topping off. Limitations are that compatibility must be checked against Infiniti G35 transmission spec requirements before use, and a multi‑vehicle fluid may not match every factory‑specified fluid for specialized transmissions or warranty needs.
Best for: A convenience‑driven buyer who wants a single, widely compatible ATF to keep on hand for regular maintenance and occasional top‑offs for an Infiniti G35, prioritizing ease and availability over matching niche factory fluids.
Less Ideal for: Enthusiasts seeking an exact factory‑specified replacement for a G35 transmission or owners under strict dealer warranty requirements should consider a fluid explicitly specified by Infiniti instead.
- Full synthetic formula for improved high and low temperature performance
- Includes seal conditioners to help reduce leaks on older transmissions
- Anti‑wear additives designed to protect clutch packs and gears
- Sold as a three‑gallon pack for convenience and fewer purchases
- Not guaranteed to match every Infiniti G35 factory transmission specification so fitment check required
- Multi‑vehicle formulations may be less ideal than a transmission‑specific fluid for certain delicate hydraulic control systems
Verdict: A convenient full‑synthetic, multi‑vehicle ATF that offers good protection and leak control but requires checking compatibility with the Infiniti G35 transmission spec before use.
7. Nissan Genuine Matic-S Automatic Transmission Fluid (5 Quart Pack)
| Brand Name | Nissan |
|---|---|
| Unit Count | 160 Fluid Ounces |
| Item Form | Oil |
| Liquid Volume | 5 Quarts |
This is the factory-quality Nissan Matic-S automatic transmission fluid offered in a five-quart bundle for service or top-up jobs. It is intended for use where the manufacturer specifies Matic-S fluid and is typically used during transmission service, drain-and-fill, or by DIYers topping off their gearbox. The packaging is dealer-style and the bottles arrive capped; users report the product matches dealer-supplied fluid so it maintains the factory fluid specification and shift feel. The practical benefit is confidence in correct fluid chemistry for Nissan and Infiniti transmissions with Matic-S specification, which helps protect valve bodies and clutches when used as directed. Buyers should follow the vehicle owner manual for capacity and level checks because incorrect fill level can harm the transmission. The product is a straightforward genuine replacement fluid without additives or performance claims beyond meeting factory requirements.
Best for: Risk-averse mainstream buyers who prioritize using the factory-specified fluid for routine maintenance and want the assurance of a genuine manufacturer replacement.
Less Ideal for: Drivers focused on maximum cost savings or seeking specialty performance fluids should consider aftermarket alternatives instead of factory-specified Matic-S.
- Factory-specified Matic-S formula for Nissan/Infiniti transmissions
- Sold as a 5-quart pack convenient for full service jobs
- Dealer-style packaging indicating genuine manufacturer supply
- Higher cost than many aftermarket universal ATF options
Verdict: Pick this genuine Nissan Matic-S fluid when you want a factory-specified transmission fluid to match Infiniti G35 service requirements.
Choosing the Right Infiniti G35 Transmission Fluid: Key Factors to Consider
Viscosity and Manufacturer Specifications
Viscosity determines how the fluid flows at operating temperatures and directly affects hydraulic control and shift timing. For the Infiniti G35, using fluid within the manufacturer's recommended viscosity range helps maintain proper pressure and prevents slippage under load. Always check the vehicle specification for the required viscosity grade and look for fluids that list that grade explicitly. Oils that are too thin may cause premature wear, while oils that are too thick can delay engagement and increase internal drag, affecting fuel economy and shift quality.
Friction Characteristics and Shift Quality
Friction modifiers in transmission fluids control how clutches and bands engage, which shapes shift feel and responsiveness. Fluids formulated with stable friction properties produce consistent, smooth shifts and reduce shudder or hunting between gears. Consider fluids that specify friction performance across temperature ranges, since a fluid that behaves well cold may perform differently when hot. For drivers who want crisp, predictable shifts, prioritize formulations that highlight friction stability and low stiction.
Thermal Stability and Oxidation Resistance
Transmissions generate heat during normal operation, and prolonged exposure to high temperatures can break down fluid chemistry. Thermal stability and oxidation resistance help the fluid retain viscosity and additive effectiveness over time, reducing deposits and varnish formation. A fluid with strong high-temperature stability reduces the frequency of fluid degradation and helps preserve internal components. This factor matters especially for spirited driving, towing, or stop-and-go traffic where heat build-up is more likely.
Wear Protection and Additive Package
Additives such as anti-wear agents and corrosion inhibitors protect gears, bearings, and friction surfaces from wear and chemical attack. A balanced additive package helps maintain component life and prevents seal hardening or degradation. Look for fluids that document wear test results or include industry-standard additives tailored for transmission systems. Robust anti-wear chemistry is especially important if you expect higher mileage use or heavy-duty driving conditions.
Compatibility With Seals and Materials
Transmission fluids interact with rubber seals, gaskets, and internal plastics, so compatibility is critical to avoid leaks or premature seal failure. Some formulations can cause swelling or shrinkage in certain elastomers, affecting sealing performance. Choose fluids that state compatibility with common transmission materials or those that meet OEM compatibility claims. Ensuring material compatibility reduces the risk of leaks and maintains hydraulic integrity over the long term.
Service Interval and Maintenance Considerations
How often you need to change the fluid affects long-term cost and maintenance planning. Fluids with stronger oxidation resistance and contaminant-control properties can often support longer service intervals while still protecting internal parts. Consider whether the product supports drain-and-refill schedules or is intended for extended-interval use. Also weigh the ease of topping off, availability of filters or flush instructions, and how a fluid change fits into your routine maintenance.
How We Chose the Best Infiniti G35 Transmission Fluid
We focused on fluids that meet the mechanical and thermal needs of the Infiniti G35 powertrain and driving profiles. Our editorial filters prioritized fluid formulations with the correct viscosity range for the G35, stable friction characteristics for smooth shift feel, and thermal oxidation resistance to handle sustained heat. We also evaluated additive packages for wear protection and corrosion inhibition, as well as compatibility with seals and elastomers used in the G35 transmission systems. We excluded fluids lacking clear specification data or those intended only for unrelated transmission types. Products were filtered out if they did not document compatibility with automatic or manual transmissions typical to the G35, or if they lacked published performance claims on friction or viscosity stability. The final list emphasizes fluids that balance shift quality, protection, and thermal durability while aligning with vehicle-specific requirements.
Our full evaluation process is outlined in our review methodology.
FAQ
How often should I change the transmission fluid in an Infiniti G35?
Frequency often depends on driving style and conditions. Many owners follow the vehicle maker's interval but consider shorter intervals for heavy city driving or spirited use. Check fluid condition during service and replace if it shows darkening, burnt odor, or contamination.
Can I use automatic transmission fluid and manual transmission fluid interchangeably?
They are formulated for different clutch and gear systems, so interchangeability depends on the transmission type. For the Infiniti G35, use the fluid type specified for your transmission to preserve shift quality and protect internal components.
What are signs that my transmission fluid needs attention?
Common signs include rough or delayed shifts, slipping under acceleration, unusual noises, or a burnt smell from the fluid. Monitoring fluid color and smell during service visits helps catch degradation before it leads to major problems.
Does a higher-performance fluid reduce transmission wear?
Fluids with advanced anti-wear additives and stronger thermal stability can help reduce wear under demanding conditions. However, long-term protection also depends on correct viscosity, proper maintenance, and addressing mechanical issues promptly.
Is a full fluid flush better than a drain-and-refill for the G35?
Both approaches have tradeoffs. A flush can remove more old fluid and deposits but may disturb accumulated debris, while a drain-and-refill is simpler and less likely to dislodge particles. Choose based on fluid condition, service history, and technician recommendations.
Conclusion
Prioritize fluids that meet the Infiniti G35 recommended viscosity and show stable friction and thermal properties. Balancing viscosity, anti-wear chemistry, and seal compatibility will give the best chance of smooth shifts and long transmission life. Weigh maintenance intervals and your typical driving conditions when choosing a fluid. Regular checks of fluid condition combined with the right formulation will minimize wear and help maintain consistent performance over time.
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