The air filter elements used on nitro RC cars should be regularly cleaned or exchanged, and lubricated with air filter oil. This will make sure the air filter does its job of filtering out dust and sand as good as possible. Any small amount of dust which makes its way through the air filter will cause damage to small RC car engines, so it’s a must to ensure the filter is working properly.
At EuroRC we offer high quality RC car air filter oil from Hudy, Team Associated, Traxxas