And I see same average difference, but a drop in this case, from our summer ( mid 20s C) to our depressing meh winter of 4C.

Ab

> On Feb 10, 2020, at 7:53 PM, Jim Arnott <jrasite@eoni.com> wrote:
> 
> I see about 6-7 psi change on my 15 mile drive to town. Temp doesn’t change much at all. (Alistair’s cheap TPMS.) It fits great on the ledge under the tach. I have to pull it out and throw it on the dash about once a week to charge.
> 
> Jim
> 
>> On Feb 10, 2020, at 7:01 PM, Alistair Bell <albell@shaw.ca> wrote:
>> 
>> And the pedant in you should have dope slapped me for typing pendant :-)
>> 
>> Hey, on another subject, since I installed an aftermarket tire pressure monitoring system, I’m so surprised at the apparent change in tire pressure with temp changes.
>> 
>> Yeah, of course it will change , but I never did the math using the old equations. Having this system, which include temp at the tire, shows me just how much the pressure changes with temp.
>> 
>> Been on the van since the summer, has worked prefectures except.. during the dark dark periods we have here during short days and rain, the little solar panel on the display can’t keep up .
>> 
>> Alistair