Choosing the right engine oil for your Toyota GT86 (also known as the Subaru BRZ or Scion FR-S in certain markets) is essential for maintaining performance, reliability, and longevity. As a rear-wheel-drive sports car designed for driving enthusiasts, the GT86 demands high-quality maintenance practices—especially when it comes to lubricating its naturally aspirated boxer engine. In this article, we’ll explore everything you need to know about engine oil for the GT86, including manufacturer specifications, oil types, viscosity grades, and best practices for performance and longevity.
Understanding Engine Oil Basics
Before diving into specific recommendations for the GT86, it’s important to understand what engine oil does and why using the right type is critical.
What Does Engine Oil Do?
Engine oil serves several crucial purposes:
- Lubricates moving engine components to reduce friction and wear
- Helps cool the engine by carrying heat away from combustion areas
- Filters out contaminants and sludge through the oil filter
- Protects against corrosion and rust
- Improves fuel efficiency by reducing internal resistance
Using the correct oil helps ensure your GT86’s engine stays in top condition whether you’re commuting, canyon carving, or hitting the track.
Viscosity Grades: What They Mean
One of the most important aspects of engine oil selection is viscosity, which refers to the oil’s thickness and how it flows under different temperatures. Viscosity grades like 0W-20 or 5W-30 are determined by the SAE (Society of Automotive Engineers) classification system.
The first number (e.g., 0W) refers to the oil’s viscosity in cold temperatures (the “W” stands for Winter), while the second number (e.g., 20) indicates the viscosity at operating temperature. A lower first number means better cold-weather performance, while a higher second number typically indicates better protection under high heat.
Toyota and Subaru Recommendations for GT86 Oil
Since the GT86 is co-developed by Toyota and Subaru, it’s powered by Subaru’s FA20 boxer engine (rebadged as the 4U-GSE by Toyota). This engine is known for its balance, low center of gravity, and high-revving nature, all of which influence the type of oil it requires.
Original Equipment Manufacturer (OEM) Oil Requirements
Both Toyota and Subaru specify the following oil requirements for the GT86/BRZ:
- Viscosity Grade: 0W-20
- API Certification: SN or higher
- ILSAC Standard: GF-5 or newer
- Oil Capacity (with filter): Approximately 5.1 quarts (5.4 quarts for some model years)
Toyota’s factory-filled oil is generally Toyota Genuine Motor Oil 0W-20, while Subaru recommends their own Genuine 0W-20 synthetic oil. Both are full synthetic and meet the necessary specifications.
Why 0W-20?
The use of 0W-20 oil in the GT86 is no accident. This low-viscosity oil offers several benefits:
- Improves fuel economy: Thinner oils reduce internal friction, which helps the engine operate more efficiently.
- Better cold-start protection: The “0W” classification ensures oil flows quickly at low temperatures to protect the engine immediately on startup.
- Compatible with variable valve timing systems: Many modern engines, including the FA20, utilize VVT systems that require thinner oils for proper operation.
However, this also means that the engine relies heavily on the oil’s additives and synthetic base to protect under thermal stress and high RPMs. That’s where the quality of the oil becomes critical.
Choosing Between Conventional and Synthetic Oil
The GT86’s manufacturer recommends using synthetic oil, but what exactly is the difference?
Conventional vs. Synthetic Oil
- Conventional Oil: Refined from crude oil, conventional motor oil has been around for decades. It is generally less expensive but less stable under extreme temperatures and degrades more quickly than synthetic.
- Synthetic Oil: Man-made motor oil designed to offer better performance, stability, and protection. It maintains its viscosity better under high temperatures, resists oxidation, and offers better cold-weather performance.
Why Synthetic Is Best for the GT86
Because of the GT86’s performance nature and its high-revving engine, synthetic oil is the better option for several reasons:
- High thermal resistance: The FA20 boxer engine gets hot, especially under spirited driving or track conditions. Synthetic oils maintain their integrity better under heat.
- Better cold-start lubrication: If you live in a cold climate, synthetic oil’s ability to flow in freezing temperatures protects your engine better.
- Longer drain intervals: Synthetic oils can be stretched further between oil changes compared to conventional oils, which can break down quicker.
OEM and Aftermarket Oil Options
There are several respected brands that produce 0W-20 synthetic oil that meets or exceeds Toyota and Subaru’s specifications. Let’s break them down.
Factory-Recommended Oils
Toyota Genuine Motor Oil 0W-20
This is the oil that your GT86 likely comes filled with from the factory. It’s specifically formulated for Toyota engines and meets all API SN and ILSAC GF-5 requirements.
Subaru Genuine Synthetic Motor Oil 0W-20
Given that the GT86 uses Subaru’s engine, their OEM 0W-20 is also an excellent choice and is commonly used by BRZ owners as well.
High-Quality Aftermarket Oil Brands
| Brand | Viscosity | API Certification | Performance Notes |
|---|---|---|---|
| Mobil 1 | 0W-20 | SN | Full synthetic; high shear stability; excellent cold flow performance |
| Spectra Premium | 0W-20 | SN / GF-5 | Full synthetic; compatible with high-revving engines |
| Castrol EDGE | 0W-20 | SN | Uses fluid tectonics technology; premium synthetic for performance vehicles |
| Valvoline Advanced Full Synthetic | 0W-20 | SN | Good value option with high-performance additives |
These oils offer excellent protection and are often used by performance car owners who may not want to pay OEM pricing but still demand quality performance.
Oil Change Intervals and Tips
Proper maintenance schedule adherence can make or break the long-term health of your GT86’s engine.
Manufacturer Oil Change Recommendations
Both Toyota and Subaru recommend oil changes every 6 months or 5,000 miles (8,000 km), whichever comes first, for normal driving conditions. However, this assumes the use of synthetic oil.
For severe driving conditions—such as:
- Frequent stop-and-go driving
- Short trips in cold weather
- Towing
- Racing or track use
more frequent oil changes (every 3,000–4,000 miles or as necessary) are advised.
Oil Filter Requirements
The oil filter should be replaced during every oil change. Toyota and Subaru recommend using a factory OEM oil filter or a high-quality aftermarket equivalent. Brands like Mann, WIX, and K&N offer filters that closely replicate the performance of OEM units at competitive prices.
How to Check and Top Off Oil
The GT86’s flat-four engine is known to have a small oil capacity and a tendency to consume oil slowly over time. Therefore, regular oil checks are a good practice.
Steps to check GT86 oil:
- Park on level ground and turn off the engine. Allow it to sit for 5–10 minutes.
- Open the hood and locate the oil dipstick (on the driver’s side).
- Pull the dipstick out, wipe clean, reinsert, and pull out again to read the oil level.
- If the oil level is near or below the “Low” mark, add 0W-20 oil in small increments to avoid overfilling.
Always use the recommended viscosity and quality oil when topping off.
Upgrading Oil for Performance Driving
If you’re planning to drive your GT86 hard—on the track or in spirited driving—you may want to consider premium synthetic oils with higher shear stability and additive packages designed for performance environments.
High Performance Oil Considerations
- Racing-focused oils: Brands like Motul, Royal Purple, and Red Line offer 0W-20 variants designed for high-stress conditions.
- Full synthetic ester-based formulas: These provide better shear stability and thermal resistance, which is important under wide-open throttle and high RPMs.
Note: While these oils can enhance engine protection under demanding conditions, always ensure they meet or exceed API specifications. Some racing oils may not be ideal for daily driving or warranty-covered vehicles unless specified.
Debunking Common Oil Myths for the GT86
There are many myths circulating about oil use and engine longevity. Let’s dispel a few regarding the GT86:
Myth: Higher Viscosity Oil Offers Better Protection
FALSE. While thicker oil (like 10W-30) may seem like it offers more protection, it can actually be harmful. The GT86’s engine is designed to run on 0W-20 oil, and heavier oils can increase engine drag, reduce fuel efficiency, and impede proper function of variable valve timing systems.
Myth: Mixing Oils Can Damage the Engine
Not necessarily. Most modern synthetic oils are compatible and can be mixed in emergencies. However, it’s best to stick with the same viscosity and type unless you’re topping off briefly. Always aim for consistent oil usage long-term.
Myth: You Don’t Need to Change Oil if You’re Using Synthetic
FALSE. Even synthetic oil degrades over time due to heat, moisture, and contamination. Following the manufacturer’s oil change intervals—whether using OEM or aftermarket synthetics—is crucial.
Environmental and Economic Considerations
Choosing the right oil is not only about performance but also sustainability and cost.
Environmental Impact of Oil Choices
Synthetic oils often last longer and reduce waste compared to conventional oils. Replacing your oil less frequently means fewer oil changes—and less oil disposal, oil filter waste, and packaging waste. It’s a small but impactful way to reduce your GT86’s environmental footprint.
Cost vs. Value
While OEM oils are more expensive, they’re reliably matched to your car’s needs. Aftermarket synthetics like Mobil 1 or Castrol can offer similar performance at a lower price, which makes them attractive for budget-conscious owners.
Maintenance Calendar Tips
To keep your GT86 running smoothly and your oil changes on schedule, consider setting up digital reminders. Mobile apps like MyCar or Google Calendar can help you track oil changes, tire rotations, and other essential services.
You might also consider keeping a maintenance logbook in your car or online in case you ever sell the vehicle; proof of meticulous maintenance can increase its resale value.
Conclusion: What Oil Does GT86 Take?
To sum up, the Toyota GT86 (and its Subaru BRZ twin) requires 0W-20 synthetic motor oil. Both Toyota and Subaru recommend full synthetic oil to ensure proper performance, efficiency, and engine protection. While OEM options are reliable, high-quality aftermarket oils such as Mobil 1, Castrol EDGE, and Spectra Premium provide viable alternatives with proven results. Whether you’re driving your GT86 for daily commuting or hitting the track for sporty adventures, using the right oil makes all the difference in performance and longevity.
Remember to change your oil every 5,000 miles or 6 months, replace the oil filter each time, and monitor oil levels regularly. Regular maintenance paired with the right oil will allow you to enjoy the sharp handling and thrilling performance of your GT86 for years to come.
Always consult your owner’s manual or a Toyota-certified mechanic if you’re unsure. By following best practices and staying consistent with maintenance, your GT86’s engine will reward you with reliability and a driving experience that’s second to none.
What type of engine oil is recommended for the Toyota GT86?
The Toyota GT86, also known as the Subaru BRZ or Scion FR-S in some markets, is equipped with a high-revving 2.0-liter flat-four engine that requires a high-quality synthetic motor oil. Toyota recommends using SAE 0W-20 engine oil that meets the API SN or later specifications. This viscosity helps ensure smooth engine operation, optimal fuel efficiency, and proper cold-start performance. It’s best to use oil that carries the Toyota Genuine Motor Oil certification or an equivalent from a reputable brand such as Mobil 1, Castrol, or Valvoline.
Running the correct oil type is crucial for maintaining engine performance and longevity. 0W-20 oil provides better engine protection during cold starts compared to higher viscosity oils. However, some enthusiasts who frequently drive their GT86 on track days or under more demanding conditions may opt for a high-performance 5W-30 synthetic oil, especially during warmer seasons, to ensure sufficient lubrication at higher operating temperatures. Always consult your owner’s manual and consider the driving conditions when selecting oil.
Can I use a different viscosity oil in my GT86?
While SAE 0W-20 is Toyota’s recommended viscosity for the GT86, deviations may be acceptable depending on environmental conditions and driving habits. In extremely cold climates, using 0W-20 is essential for cold-start protection, whereas in consistently hot environments, some drivers use 5W-30 oil as an alternative. Modified GT86 engines or those used for track driving can benefit from heavier viscosity oils like 5W-30 or even 10W-30, which offer enhanced thermal stability and protection under stress.
However, it’s important to note that deviating from the manufacturer’s recommendation can have consequences. Using the wrong oil viscosity might void your warranty and could lead to diminished engine performance or increased wear over time. Always consider oil viscosity as part of an overall maintenance strategy tailored to your driving style and local climate, ideally under the guidance of a qualified mechanic or Toyota technician.
What are the best oil brands for the Toyota GT86?
Several high-quality oil brands are well-regarded by GT86 owners for their performance and reliability. Toyota Genuine Motor Oil is the factory-recommended choice, providing peace of mind in terms of compatibility and engine protection. However, many drivers opt for popular synthetic oil brands such as Mobil 1, Castrol EDGE, Liqui Moly, Valvoline Advanced Full Synthetic, and Amsoil, all of which offer 0W-20 or 5W-30 synthetic oils that meet or exceed required specifications.
When choosing a brand, it’s important to ensure the oil meets the latest ILSAC and API certifications for gasoline engines (e.g., API SN, SN+, or SP). These standards ensure the oil provides proper engine protection, fuel economy preservation, and emissions system compatibility. Some enthusiasts also prefer European-spec oils like Motul or Elf for high-performance driving, as they may offer additional additives and performance characteristics that suit spirited driving conditions.
How often should I change the oil in my GT86?
Toyota recommends an oil change interval of every 6 months or 10,000 kilometers (approximately 6,000 miles), whichever comes first, under normal driving conditions. However, for those who drive aggressively, track their GT86, or frequently drive in stop-and-go traffic, dusty conditions, or extreme temperatures, it’s advisable to shorten the interval to every 5,000 kilometers or 3 months. This helps maintain engine cleanliness and ensures continued protection under more demanding scenarios.
Synthetic oils, especially full-synthetic varieties, are more durable than conventional oils and can withstand longer intervals under standard use. Still, timely oil changes are essential to prevent sludge buildup, maintain viscosity, and ensure optimal engine performance. Always check your dipstick between changes and inspect for color and consistency. Dark, gritty oil may indicate the need for an earlier oil change.
Should I use synthetic or conventional oil in my GT86?
Due to the high-revving nature of the GT86’s engine and the manufacturer’s recommendations, synthetic oil is the preferred and recommended choice. Fully synthetic oils offer superior protection under high temperatures, better cold-weather performance, and longer service intervals. They also reduce engine friction, which can enhance performance and fuel efficiency. For the best performance and longevity, stick with full synthetic rather than synthetic blend options.
Conventional oil, while cheaper, is not suitable for long-term use in the GT86. It breaks down faster under high-stress driving and is more prone to sludge formation, which can harm engine components over time. If you’re unsure whether to go synthetic, rest assured that the benefits far outweigh the initial cost, especially if you value performance, reliability, and long-term engine health.
What are the signs that my GT86 needs an oil change?
Several signs indicate that your GT86 may be due for an oil change. One of the most common indicators is the illumination of the maintenance or oil life indicator on the dashboard. Additionally, if your engine sounds louder or rougher than usual, starts exhibiting reduced performance, or you notice the oil appears dark and dirty on the dipstick, it’s likely time for a change. Low oil levels or oil with a burnt smell are also warning signs of degradation.
Neglected oil changes can lead to increased engine wear and reduced efficiency. You might also detect a burning oil smell inside the cabin or notice the Check Engine Light illuminated due to excessive strain on the engine. Proactive maintenance and awareness of these signs can prevent costly repairs and maintain the GT86’s sporty performance. Always check oil levels and condition during regular maintenance intervals.
How does oil affect performance in the GT86?
Engine oil plays a significant role in the performance and health of your GT86’s engine. High-quality synthetic oil reduces internal friction, which allows moving engine parts to operate more efficiently. This is especially important in the GT86’s horizontally opposed engine, where smooth operation and heat dissipation are critical. The correct oil viscosity also ensures proper lubrication of components at both high and low temperatures, supporting consistent power delivery and engine responsiveness.
Poor oil quality or incorrect viscosity can lead to increased drag, reduced output, and premature component wear. Over time, degraded oil can form deposits that negatively impact performance. By using the right oil and adhering to a regular change schedule, GT86 owners can maximize the fun-to-drive aspect of their vehicle and ensure that the naturally aspirated engine continues to deliver the precise, rev-happy performance it’s known for.