Funny. How apropos. When trying to stuff something else in the middle of the spare, under the "cargo tray package" I noticed that a quart of Mobil 1 0w-20 had leaked out and down through the tire and well. A real fun cleanup job. Since I had the spare out, I checked the pressure. 28psi. Interestingly, written in a yellow marker on the side of the tire was a "36". Cold maximum side pressure says 60. It is a Firestone. States 60psi in a couple different places. Wonder what the deal with the yellow "36" is about. Do they only fill it to 36 from factory? I filled it to 60-62 depending on what gauge I use.
On a side note, that Mobil 1 has been there a long, long, time. Never needed to top off. Last oil change, did go over 8000 miles before a change and probably could of put about a half a quart in,......and I guess I actually did, just unintentionally in the wrong place! I did not see any verified performance gains....or losses from adding oil in that unique application, although seat of the pants measurement says she still purrs like a kitten.
Only have about 31,000 miles on it so far, but mileage will be racking up faster in the next few years.
2010 Vibe 1.8 auto, fwd, base, air, preferred package, cargo mgt, cargo cover, ultra white.