my TPMS is one year old already and I assume it should be serviced, so I have few questions:
- how often should I change the battery? - every 1 or 2 years?
- should I grease the pink O-ring inside the sensor, or only the black one under the plastic cap?
- which grease should I use for O-rings? common 100% silicone grease or something else?
- your website says “We recommend you to add oil and unscrew the sensor every two weeks” to prevent an oxidation. what do you mean under “oil” - a common silicone grease, or WD-40, or something else? where should I apply the grease - to the metal thread inside the sensor?