Tire Pressure to 37.5-38.5 PSI for longer tire life & better tire performance + better fuel economy
Channel: Aaron Schwarz
Date: 19/02/2020

Early morning tire pressure maintenance. Keeping vehicle tires properly inflated makes the tires last longer, enables the tires to perform better, gives the vehicle enhanced fuel economy, & enhances driving dynamic performance for better stopping, improve grip, enhanced skidpad (road holding) & just a good idea in general as part of properly maintaining a vehicle. 

Utilizing a small 12 vdc brushed motor air compressor harvested from a Jumper Pack, the compact air compressor takes energy from a 12-7F2 SLA 12vdc sealed AGM lead acid battery. I keep this battery in good working order by regularly connecting it to NOCO Genius automatic maintainer charger that fully charges the battery to 14.5vdc after which it enters 13.26vdc float mode to keep the battery fully charged. Lead acid batteries last longer if they are regularly fully charged.

A digital tire pressure gauge reading out in PSI used to test each tire. I try to keep all the tires within 0.5 PSI of one another so the pressure setup balanced well. I aim for close to 40 PSI cold pressure. It's very important to measure tire pressure when tires are cold, after the vehicle has cooled off overnight & not been driven. When driving, tires heat up & the air inside expands. If you were to measure the tire pressure when the tires were hot the reading would be inaccurate. The tires rated pressure & vehicle load settings found near the drivers door sill are for cold pressure. 

I also recommend filling tires with dry air, when relative humidity less than 50%, as this helps to minimize water ingress into the tire. If you put humid air in the tire, water can build up & cause imbalance & rim corrosion issues.

The valve stem to the tire should also be covered with a screw on cap to keep dust, moisture & debris out of the valve. If you find a valve stem with a cap missing, you can remove the valve with a valve stem removal tool, clean it, put it back & then add air to the tire to the correct pressure again.

There are many kinds of air compressors available that you can use to inflate your bicycle, motor scooter, motorcycle, car, truck, bus, van, motorhome, ATV, aircraft & trailer pneumatic tires (air filled). I like the DC electric ones as they are fast & efficient. Wear hearing protection to keep the loud noise of these units from causing hearing loss. 

Cheers & thanks for watching. Safe travels & Godspeed.