Common questions about Rhodex products, viscosity selection, application, and ordering. Can't find your answer? Contact us.
Rhodex products are formulated for RC applications from the start, rather than being industrial lubricants in smaller bottles. Shock oils are stabilised against the heat that builds up in racing shocks. Greases are matched to specific component materials — silicone for plastic gears, EP additives for steel-on-steel, PFPE for ceramic bearings. The Heliox line uses aerospace-grade PFPE chemistry for severe-duty work. And everything's made in the UK, so we control the batches end to end.
All Rhodex RC Line products are formulated and manufactured in the United Kingdom. Our British manufacturing means we control quality at the source, ensure batch-to-batch consistency, and maintain tight specification tolerances.
Many RC shock oils on the market are blends — silicone mixed with PAO, mineral oil thinners, or thickener additives to hit a target viscosity. Those additions can drift over time, separate, or behave differently between batches. Rhodex Silicone Performance Fluid is 100% silicone polymer — nothing else added. The viscosity comes from the molecular weight of the silicone itself, which is why each batch matches the last, and why the cSt on the label is what's actually in the bottle.
59 specialist products across six categories: 20 silicone shock oils (50-1000 cSt), 14 differential oils (2,000-100,000 cSt), 13 specialist greases, 4 Heliox aerospace products, 5 specialty formulas, and 2 curated kits.
cSt (centistokes) is a precise SI viscosity measurement. WT (weight) is older RC hobby terminology. Approximate conversion: cSt ÷ 10 ≈ WT. So 350 cSt is approximately 35WT. However, different brands use slightly different conversions, so always reference cSt — it's the actual physical measurement. See our Viscosity Guide for a complete conversion table.
Three factors: vehicle scale (smaller RCs use lighter oils), track surface (smoother tracks need lighter oils), and driving style (aggressive drivers prefer firmer oils). For 1/10 touring cars, 200-400 cSt is typical. For 1/10 buggies, 300-500 cSt. For 1/8 vehicles, 400-700 cSt. Read our complete viscosity guide for detailed selection.
It's possible, but we don't recommend it. Silicone viscosities don't blend linearly — mixing 350 cSt with 450 cSt doesn't give you a reliable 400 cSt. The actual result varies with temperature and how long the mix settles, which works against the setup repeatability racers care about. Rhodex covers 20 viscosities in 50 cSt steps through the working range, so the right number is almost always already on the shelf. Pick the closest standard viscosity and go.
Use Rhodex Plastic Gear Grease, which is specifically formulated to be plastic-safe. Many petroleum-based greases attack plastic — causing swelling, softening, or cracking over time. Plastic Gear Grease is silicone-based and won't degrade nylon or polymer gears.
They're used together in ball differentials but serve different functions. Ball Diff Grease coats the diff balls and rings, providing controlled-grip behavior. Moly Thrust Grease (with MoS₂ extreme pressure additive) goes on the thrust assembly, handling the axial load forces. Use both — they're a system designed to work together.
Heliox is worth using on the parts that benefit most from PFPE — high-RPM ceramic bearings, severe-load drivetrain components, and anything that sits for long periods between use. For normal racing, the standard Rhodex greases are the right call. Save Heliox for the components where its properties (chemical inertness, very wide temperature range, no oxidation) actually pay back the premium. The PFPE technology guide covers this in more detail.
Yes. Rhodex Silicone Performance Fluid is 100% pure silicone with no PAO or mineral oil contamination. Pure silicone is compatible with all standard shock seal materials, including nitrile, EPDM, and silicone O-rings. It will not swell or degrade rubber seals.
For shock oils: yes, mixing silicone shock oils from different brands is generally fine, though you'll get the most predictable behavior with a clean fill. For greases: clean components first, especially when transitioning between different grease bases (PFPE, silicone, lithium). Mixing incompatible grease chemistries can cause separation or performance loss.
Less than you think. Over-greasing is the most common application mistake — excess grease creates drag, attracts dust and debris, and can slow components down. A thin, even coating is what you want. For bearings, a small amount worked into the balls is sufficient. For gear teeth, a thin film on the contact surfaces.
For racing: replace shock oil every few race weekends or when performance changes. Replace diff oil every 5-10 race weekends. For bashing/casual use: every 20-30 hours of run time. Always replace after a major impact or any visible contamination.
All shock oils thin out as they heat up — that's physics. The question is by how much. Generic shock oils suffer significant viscosity fade during racing. Rhodex Silicone Performance Fluid is heat-stabilized to minimize this effect, so your 400 cSt at room temperature stays close to 400 cSt at race temperature.
Rhodex products are available exclusively through Lubricants Hub (lubricantshub.com). Lubricants Hub is our dedicated retail partner, stocking the complete Rhodex RC Line with worldwide shipping. Buying through Lubricants Hub guarantees genuine Rhodex products.
This website is our brand and information hub. For purchases, we direct customers to Lubricants Hub, our authorized retail partner. This focused distribution model lets us maintain product quality, prevent counterfeiting, and offer consistent worldwide service.
Yes — Lubricants Hub ships Rhodex products internationally. For specific shipping rates, delivery times, and country availability, please check the Lubricants Hub website at lubricantshub.com.
For bulk orders, race team partnerships, or trade inquiries, please contact us through the Contact page. We can provide information about pricing for retailers, race teams, and high-volume customers.
Buy through Lubricants Hub — our retail partner — or other authorised platforms. Buying through approved channels protects you against counterfeit products. Genuine Rhodex packaging carries the blue Rhodex branding with white "RC LINE" lettering and the "Made in Britain" UK flag.