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R.F.T leak air pretty fast


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I pump about once a month (W176 A class)

What I found helps:

1. The higher you pump initially, the longer it takes for it to drop below threshold. Pump as high as you are comfortable with. 

2. If you pump your tyres cold, then the fuel filler flap values are not valid in Singapore where ambient temps are 15 deg above Europe. I.e. there's less potential for tyres to 'warm up'. So based on the Ideal gas law (PV=nRT) we should add 15 deg  i.e. about 10kpa.

3. If you drive on an unloaded car, use the pressure values specified for a loaded car but use the front-rear difference specified for the unloaded values to preserve balance.

Front Rear (unloaded)
250 220
Front Rear (loaded)
270 270

Then use 270 for the front, but minus the 30 psi difference for the rear, so 240 for rear.

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