MaDaSS

I have been using a simple tyre pressure gauge for years. The type where the tube slides out the end and you read the pressure on the scale etched on the side. I have just received my Richbrook digital gauge and this is reading 2 psi lower than the mechanical one. According to magazine articles the Richbrook is supposed to be very accurate. So, what do i believe?
How the hell do you know which is the accurate one?
This is a 2 psi difference which is not to be sniffed at imho.
You only have to be running 3 to 4 psi too low and you increase the heat in your tyres by being under inflated.
What do you ppl use?

carl heath

it would be interesting if you were to go to a few petrol forecourts and see if they all differ to the two you have,i use a really old tyre inflator at work but must be 30 years old !

MaDaSS

Having just re-read the instruction card for the Richbrook gauge, it is listed as accurate to +or - 1%, so my 32 psi will be 31.68 to 32.32 psi! LOL.
Certainly a lot more accurate than my mechanical gauge. That was 2 psi too high.
Thats like over 6% out!

WRX_Dazza

now you know your machanical device is 2psi out, sell the richbrook one (or take it back) and use the old one, with 2psi error correction

dunx

iTrader: (3)

I'd rather put 2 psi extra in than run them soft...

dunx

scarey

that's not very accurate for a digital air gauge

ours are + or - 0.1%

MaDaSS

Tell me about it! LOL.
More accurate than my mechanical one though

rookymatt

iTrader: (15)

Can you callibrate an old weighted ones??! Best to get a garage to thats recently had its gear recallibrated to check and set them and make some comparrisons with your old weighted one(thats if you know anyone in a garage to do you the favour that is!)