Can those who use TPMS share what sort of temperatures their tyres run at during summer and how much variation there is between individual tyres. Also curious about how much lower running temps would be in the cooler months and if the variation range between tyres is correspondingly less.
-- Edited by Cooch on Thursday 25th of July 2019 12:26:27 AM
Peter_n_Margaret said
11:22 AM Jul 25, 2019
Yes, the sun and ambient temperature will make a significant difference.
I would not give much credibility to any valve mounted TPMS to provide a temperature of the internal sidewall and belt structure of a tyre. How could it?
I use an infra red thermometer to check tyre temperatures from time to time when we have reduced pressures significantly for sand driving. I consider a reading of 70C to be the absolute maximum to avoid permanent casing damage.
Cheers,
Peter
Craig1 said
08:43 PM Jul 25, 2019
My Safety Dave valve mounts vary in pressure about 3psi, no apparent reason, this could be reading my compressor gauge, or just anomaly.The temperature evens up after 20-30km and it seems to be reasonably accurate with the put your hand on the tyre and wheel centre test.Runs around 48 at 100kmh highway. Cold start can be 10-12 degrees different, ie East side early sun will be ambient at say 7 degrees, west side in shade will be 1 - 2 degrees.
Cooch said
05:09 PM Jul 28, 2019
Thanks Craig & Peter, that was the info I was after
Aus-Kiwi said
08:02 PM Jul 28, 2019
Isnt there a system where you adjust tyre pressures measure temps till you get the correct temp / tyre pressures ? Or www.bigwheels.net.au/tyre-chart
Craig1 said
08:06 PM Jul 28, 2019
There is A K, but I just figured mine was close enough, and no alarms going, which was my main reason for purchase. The piddly pressure gauges and the fact that you then have to remove sensors to change pressure. So slightly slack but happy enough.
StewG said
03:07 PM Jul 29, 2019
Like Craig, I also use a Safety Dave TPMS and find that the temperature tracks ambient plus a bit. On a 40+ degree day on dirt roads, the TPMS could indicate as much as 55 degrees. I treat the TPMS as an indicator only, not as a precision instrument. In fact the TPMS pressure disagrees with my compressor gauge, but only by a PSI or two. Who knows which one is correct... The temperature indication also varies according to which side of the vehicle is on the sunny side, as Craig has said, and that also influences the pressure. Fortunately, I have never yet had a catastrophic tyre failure, but only a slow leak on one caravan tyre. The TPMS alerted me to that anomaly so that it could be fixed in a timely manner.
Can those who use TPMS share what sort of temperatures their tyres run at during summer and how much variation there is between individual tyres. Also curious about how much lower running temps would be in the cooler months and if the variation range between tyres is correspondingly less.
-- Edited by Cooch on Thursday 25th of July 2019 12:26:27 AM
I would not give much credibility to any valve mounted TPMS to provide a temperature of the internal sidewall and belt structure of a tyre. How could it?
I use an infra red thermometer to check tyre temperatures from time to time when we have reduced pressures significantly for sand driving. I consider a reading of 70C to be the absolute maximum to avoid permanent casing damage.
Cheers,
Peter