By the Rhodex RC Line product team (IGNIS Overseas Ltd, Isleworth, UK). Claims reviewed by IGNIS Product & Compliance on 14 Nov 2026. Last updated: 14 November 2026.
Short answer. Clean and dry the foam, work Rhodex RC Line Foam Filter Oil evenly into it, squeeze out the excess, and refit. It helps the foam trap dust and debris while letting air through. It is water-resistant.
Key facts
- Product: Rhodex RC Line Foam Filter Oil
- What it is: Foam air filter oil
- Made for: Foam air filters on nitro and gas RC engines
- Not for: Paper filters
- Who makes it: Rhodex is a brand of IGNIS Overseas Ltd, Isleworth, UK
How to do it
- Remove and clean the foam.
- Let it dry fully.
- Work the oil evenly into the foam.
- Squeeze out the excess and refit.
When to choose something else
- After a run: After Run Engine Oil for the engine itself.
Common mistakes
- Running a dry foam.
- Leaving it dripping wet, which starves the engine of air.
FAQ
How often? After dusty runs, or when the foam looks dirty.
Sources
Printed product label