The owner’s manual states that your car came equipped with a compact spare tire. Air pressure in a compact spare tire is not monitored by the Tire Pressure Monitor System.
A tire pressure sensor can be installed in your full-size spare but the monitor is a 4-tire system, only 4 out of 5 tires can be monitored.
This means each time the tires are rotated, the identification codes for the 4 tires in use must be registered into the tire pressure monitor, the spare tire is left out of the monitor. One of the 5 tires cannot be monitored, that tire should remain in the storage area as a spare until needed.
+1
I did the same with my NX450h+, but I waited about 1 year. When I got rid of those Bridgestone Alenza run-flats, they still had 6/32 remaining, but I wanted to replace them with a set of Michelin Cross Climate-2 tires. The change yielded better wet & dry handling, much better ride quality, lower noise factor, the ability to use it as a winter-rated tire, and potentially longer tread life.
You state you changed it, then try to say you did not!
14 inch rims were chosen to give the cars the appearance of being longer and lower, though the affect was limited. If cheaper, why did some cars sold as economy cars keep the 15 inch rims?
It says it right in the Curbside Classic article link that probably got my post taken down yesterday: GM Nickeled and Dimed us to death it was titled. 14" rims were not for looks. They were cheaper than 15s or 16s.
“Why did some cars sold as economy keep the 15s?”
The question contains the answer - the seventh word.
Nothing to do with looks.
The looks rims are wheels 18inches and up in diameter, 8 to 12" wide, OE and aftermarketed widely since 2010. No practical reasons for them on grocery-getters, from my perspective.
If you are going to talk 50’s and 60’s now, that’s my era. I started driving in the early 60’s but mostly drove cars from the 50’s. 55 Chevy had 15" wheels, 57 Olds had 14" wheels.
Tire aspect ratios were never listed but they were 80 or higher. The first “wide oval” tires were in the 75-78 range.
Econo cars came with 12" or 13" wheels, my Borgward had 12" wheels. My mother’s Simca had 13" wheels. The only econo car that had 15" wheels that I know of was the Volkswagon Beetle. Its wheels only had three lug nuts and were very narrow. Citroen may have had 15" wheels as well but I’m not sure. I seem to remember the 2CV and 4CV models having wheels very similar to the VW wheels.
BTW, I hit a lot of potholes going too fast with those 7.50 x 15’s on my Chevy and 8.55 x 14 on my Olds and never blew a tire or dented a rim.
I think my bug had four lug nuts but yeah large wheels. In the 60s plu, I think th3 standard was 14 inch wheels. I think our falcon had 13 inch. Can’t remember at all what the Lark had. The current mags and wheels are a lot heavier than I remember so let the kids do the work.
Back in the day, a steel wheel was less mass than the equivalent alloy wheel. That has flipped with modern alloys and designs. Not only are the modern wheels more attractive, they have so little material they are much lighter. This is less un-sprung mass so better for fuel efficiency as well.
If you could produce a wheel, in modern alloy, equivalent in size (dia/width) that would fit on my 1981 Buick, would it be heavier or lighter than the 14" steel rims that came on it?
I do believe my 81 olds diesel had 15 inch wheels. That’s why I could get 110,000 mikes on a set of tires. I have no remembrance of the weight though, but I was stronger then. Might be able to find one at a junkyard though.
however, I think a 19-22" alloy (all the rage since 2015) would be heavier than any steel rim or wheel that is up to 17" in diameter. Not to mention the rubber wrapped around it.
