It's a 2014. Not sure which trim. It's 4 cylinder no turbo or fancy stuff.

This uses regular gas, right?

What oil, synthetic or blended? About 140k miles on it.

What tire pressure? Some website said 35 in the front, and 33 in the rear. But that sounds weird. Have the tire pressure (!) light on the dash board, and refreshing the air to 35/33 the pressure was 38 on all the tires. This doesn't make sense to me? How would they fill up while driving?

 

So Probably 2014 CRV LX??

If you are in the USA then only gas engine models sold here.
Some diesel engines in other countries.
The gas filler door should have a sign which fuel to use.

You use what you can afford. Synthetic is best because of the smaller molecules. They can lube areas where conventional oils can not fill

When the car is driven, the tires are flexed and heated. The heat expands the air inside the tires. Thus, the tire pressure goes up.
In the winter, the cold will contract the air and the pressure will go down.
The tire symbol with the exclamation means the tire pressure is low.
If the letters TPMS were lit then the system has an issue.
Not sure but believe the TPMS system in 2014 indirect which means it doesn't read the tire pressure but calculates thru tires wheel spin versus the other tires.
2012 and older models use direct monitoring of tire pressure.

Your vehicle after filling up to the correct tire pressure needs to reset the TPMS.
There should be a button to press to reset it.
Or if it is the direct system then need to drive the vehicle for a little bit for it to correct.

 

Mobil 1 High-mileage oil if good for higher mileage vehicles as it “contain engine oil additives and conditioners that help to combat leaks, sludge and general wear and tear. The Mobil 1 lineup of high mileage oils, in addition to providing unsurpassed wear protection, is formulated with a higher base oil viscosity to help reduce leaks and provide better high temperature protection. High mileage oil helps extend engine life through these additives and conditioners, which make using a high mileage oil an important investment in your vehicle”
I used the conventional version Mobil High Mileage oil in 2005 Ford Focus and after 16 years did not use any oil and ran well up until the time I sold it.