I had a tyre that was losing pressure slowly. It was getting near the wear indicators and the MOT was coming up so I kept topping it up for a few wee ks and arranged for the garage to replace it before it was MOTed last Frida y.
I noticed today the new tyre was looking deflated so I put the pressure gau ge on it and it was virtually flat.
The garage is pretty reliable and, as far as I know, the valve has been cha nged.
I can't get back there before Friday and I'll keep checking/topping up in t he meantime but I'm just wondering what combination of punctures, leaking v alves, unsuccessful fitting and damaged alloys would account for the old ty re leaking slowly and the new one leaking fast?
Is there anything obvious or is it just a matter of taking it back and lett ing them put it in the big bucket of water / fiddle with the valve?
I'm assuming that minor damage to an alloy wheel could be hard to spot but still sufficient to cause a leak? Are alloys repairable or do they have to be replaced?
Any advice appreciated.