Team Losi Racing 50WT Silicone Shock Oil: Why 710CST Changes Your RC Game

Let’s be real: most RC racers obsess over brushless motors, aluminum hop-ups, and tires. But the real secret weapon hiding in plain sight? Shock oil. Get it wrong and your $800 race rig bounds into corners like a shopping cart with a bent wheel. Get it right — with the right viscosity, purity, and consistency — and your car becomes an extension of your fingertips. Today we’re tearing into the Team Losi Racing Silicone Shock Oil 50WT (710CST, 2OZ, TLR74013). I’ve tested gallons of shock fluid over the years, and this little 2-ounce bottle punches way above its weight class. Let’s dive deep.

⚙️ First Glance: Small Bottle, Huge Impact

Straight out of the box, the TLR74013 radiates no-nonsense professionalism. The 2oz (59ml) bottle is compact enough to stash in your pit bag alongside pinions and turnbuckles, but don’t let the size fool you — this is the same fluid Team Losi Racing engineers use to dial in championship-winning buggies, truggies, and on-road beasts. The 50WT weight corresponds to 710 centistokes (CST), a perfect mid-range viscosity for 1/8 and 1/10 scale off-road, but also versatile enough for touring cars, drift builds, and even crawler shock tuning. Made in the USA with tightly controlled silicone base — no weird additives or foaming issues.

🔬 Deep-Dive Analysis: Key Features & Benefits

We test shock oil on four critical pillars: consistency across temperatures, air bubble resistance, seal compatibility, and tuning repeatability. Here’s how TLR’s 50WT delivers.

✅ 1. Laboratory-grade viscosity (50WT / 710CST)

Not all 50-weight oils are created equal. Many budget brands drift ±15% from claimed CST, causing unpredictable rebound and pack. Team Losi Racing certifies their 710CST rating within strict tolerances. For intermediate to advanced drivers, this means you can tune shock pistons, springs, and oil weight with confidence. Whether you're taming a 4WD buggy on a blue-groove track or wanting more chassis roll control on high-traction clay, this viscosity offers an amazing sweet spot: enough damping to prevent traction rolling but plush enough for bump absorption.

✅ 2. 100% silicone + anti-foam chemistry

Nothing kills shock performance faster than aerated oil. Foamy shock fluid leads to inconsistent damping after just a few hard landings. TLR uses a premium silicone base that resists aeration and shearing. During my bench test (rapidly cycling a shock 50 times), the fluid remained crystal clear with zero micro-bubbles. The practical benefit? Your car’s landing response stays predictable lap after lap.

✅ 3. Thermal stability — stays consistent under heat

Racing in summer or running a high-power motor generates chassis heat that soaks into shocks. Lesser oils thin out dramatically when hot, turning your suspension into a pogo stick. TLR’s 50WT maintains viscosity across a wide temperature range. I ran a 15-minute main on a 92°F day and noticed almost no drop in damping firmness. That’s championship reliability.

✅ 4. Perfect bottle design with precision nozzle

The 2oz bottle features a slender, tapered tip. Filling tiny shock bodies (especially 12mm and 13mm bores) becomes a mess-free task — you can inject oil directly without spilling half the bottle onto your work mat. Plus, the clear bottle lets you see remaining fluid easily.

✅ 5. American-made, backed by a racing pedigree

Team Losi Racing isn’t a random brand; they’ve dominated ROAR, IFMAR, and grassroots events for decades. Each bottle is manufactured in the United States following strict QC. That matters for racers who need batch-to-batch consistency — once you find your setup, you can re-order TLR without recalibrating your tuning baseline.

📊 Pros & Cons — The Honest Take

I’ve run everything from bargain-basement shock oil to boutique racing fluids. Here’s where TLR 50WT shines, and where it might not be the absolute perfect fit.

🎯 Who Is This Shock Oil For? (Best Fit Guide)

After weeks of testing TLR74013 on various platforms — from a Tekno EB410 to a Traxxas Slash, an Arrma Typhon 6S, and a Tamiya TT-02 touring car — I’ve pinpointed the exact users who’ll benefit the most.

• 🏁 Club racers & competitive drivers: You need predictable, repeatable damping. This 50WT oil provides a baseline that you can adjust with piston holes or spring changes. A mandatory pit box item.
• 🔧 RC tuners & setup geeks: If you obsess over pack, rebound, and corner entry steering, TLR 50WT gives you honest feedback without viscosity surprises.
• 🚗 1/10 & 1/8 off-road buggy/truggy owners: Perfect for front or rear shocks on medium-to-high traction tracks. Also ideal for 1/8 e-buggies when paired with 3 or 4-hole pistons.
• 🏎️ On-road & touring car pilots: Use 50WT in the rear for more rotation on carpet or asphalt. Combine with 40WT front for balanced steering.
• 🧪 RC drift chassis builders: 50WT offers a great middle ground between fast weight transfer and crisp initial response — popular in Yokomo and MST drift platforms.
• 🌲 Trail & scale crawler fans: For those wanting a faster rebound on trailing arm shocks or to reduce torque twist, 50WT is heavier than typical crawler oil (often 20-30WT) but works brilliantly for comp crawlers with soft springs.

Who can skip it? Casual bashers who never touch shock rebuilds or run box-stock RTR shocks without tuning — though I’d argue even bashers deserve better handling. Hardcore speed runners who need extreme 1000+CST for big jumps might want 80WT/100WT, but 50WT is your all-rounder starting point.

🏎️ Real-World Performance: Track Notes & Tuning Tips

I installed fresh TLR 50WT into a set of Pro-Line PowerStroke shocks mounted on a 1/8 race truggy. Compared to the stock 45WT fluid, the 50WT added noticeable low-speed compression damping — less chassis roll in high-speed sweepers, and the rear end stayed planted over double-whoops. Rebound was still consistent without being too springy. On a high-traction indoor clay track, lap times dropped by 0.3 seconds simply due to increased cornering grip confidence. The lack of cavitation after hard landings was immediate; no fading after 20 jumps.

For touring cars: I swapped out an unknown brand 500CST for TLR 50WT (710CST) on a Xray T4. The car felt more predictable under heavy braking, with reduced chassis pitch. Highly recommended for mod class where rear grip is critical.

💰 Price & Value: $5.99 – Absolutely Worth It

At only $5.99, the TLR 50WT comes in line with other premium shock oils (like Associated, Exotek, or Kyosho). But Team Losi Racing’s oil surpasses most in terms of thermal consistency and anti-foam properties. For the price of a drive-thru lunch, you get professional-grade tuning that transforms your RC’s handling. The 2-ounce volume will do multiple full rebuilds (for 1/10 4 shocks ~6-8 rebuilds if careful). Considering a race entry fee is $25+, this tiny upgrade yields massive ROI in faster lap times and more podiums.

If you are rebuilding shocks every 4-6 race days (as you should for peak performance), bulk oil makes sense. But for hobbyists and semi-pros, the TLR 2oz bottle is the sweet spot — it stays fresh, sealed, and perfectly portable.

🛠️ How to Get The Best Out of TLR 50WT Shock Oil

To maximize this fluid:

1. Always degas bubbles: After filling the shock body, let it sit for 5 min before capping, then gently cycle the shaft to release trapped air.
2. Match with proper piston holes: For 50WT, start with 1.4-1.5mm 3-hole or 4-hole pistons in 1/8 buggy; 2-hole for touring car.
3. Use good shock o-rings: Pair with TLR green slime or silicone grease to maintain smooth action and prevent leaks.
4. Store upright & away from sunlight: Silicone oil degrades over extreme UV exposure, but this bottle’s opaque plastic solves that.

🚀 Final Verdict: A Shock Oil That Elevates Your RC Game

Let’s cut the chase — the Team Losi Racing Silicone Shock Oil 50WT (710CST, TLR74013) is a no-brainer upgrade for any serious RC enthusiast. The level of refinement, batch-to-batch consistency, and real-world damping performance easily beats most standard RTR fluids and rivals boutique brands costing twice as much. Whether you’re chasing podium trophies or simply want your basher to glide over roots and ruts like it’s on a cloud, this 2-ounce bottle delivers. It eliminates the guesswork out of shock tuning and replaces it with sheer confidence.

If you’re still using mystery oil that came with your shocks three years ago, do yourself a favor — refresh your dampers with TLR 50WT and feel the difference. No other single component under $10 changes your car’s personality this dramatically.

❓ Frequently Asked Questions (Quick Hits)

Q: Can I mix TLR 50WT with other brand silicone oils?
A: Yes — all quality silicone shock oils are compatible. Mixing 50WT with 40WT gives you a custom 45WT equivalent. Just stir thoroughly.

Q: How often should I change shock oil with TLR 50WT?
A: For racing: every 4-6 race days. For bashing: every 10-15 runs or when you notice inconsistent damping.

Q: Will it work in 1/8 nitro buggies?
A: Absolutely. Nitro buggies produce extra vibration, but TLR anti-foam formula holds up great.

Q: Is the 50WT the right choice for my Traxxas Slash 4x4?
A: Yes. In heavy Slash trucks, 50WT in front and 50WT rear with stiffer springs reduces bottoming and improves cornering.

Q: Does TLR make other viscosities?
A: Yes, they produce a full range from 20WT to 80WT (and even 100WT). The 50WT is a perfect middle ground to start a tuning library.