Pure Silicone · Race-Tuned

Dialed in.Every lap.

Precision-blended silicone shock & diff fluids. True cSt ratings, cross-referenced to the numbers you already run — so your setup translates straight across.

Shop Fluids Viscosity Chart

True cStVerified viscosity

Anti-FoamNo cavitation, no fade

Temp StableCold pit to hot main

USA Made5108 Speed Works spec

The lineup

Shock Fluid200 – 800 cSt · 8 fl oz Diff Fluid2k – 200k cSt · 4 fl oz Grease & OilsFR1 Driveline Honey

Shop by Viscosity

Pick your number

Every bottle is capped with its cSt rating. Grab the weight your setup calls for.

Shock Fluid

200 250 300 350 400 450 500 550 600 650 700 750 800

Diff Fluid

2k 3k 5k 7k 10k 12.5k 15k 20k 30k 50k 100k 200k

Made in the USA

Built for the podium

Every batch is precision-blended to tight tolerances, then checked so the bottle you buy behaves exactly like the last one.

ConsistentTight batch-to-batch tolerance you can tune around.
Temp stableHolds viscosity from cold pit lane to a hot main.
Anti-foamNo cavitation, no fade through a full run.
True cStCross-referenced to Associated & Losi numbers.

Our Story

Dial in your setup

True cSt fluids, blended in the USA and shipped same day.

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