How to quickly fix a slow leaking tire (rim leak) using nothing but the bare essentials found around the house. This is definitely a trade secret that even the Auto mechanics won't reveal. Video is 4 minutes long.
The following is a resourceful list of other issues that may cause a tire to deflate. The list should be reviewed before following the Quick fix steps as demonstrated in the video. A big thanks to Max Giganteum for the following information..

- A bad valve stem. It could be old & non-flexible thus not sealing at its base.

- The stem could have hairline cracks in it and allow air to escape during vehicle ops.

- Is the valve stem the correct size for the hole in the rim?!?

- The valve in the stem itself may be bad thus air is leaking by it... possibly only during vehicle ops!

- An obvious minor puncture in the tire that has gone unnoticed.

- Road debris may be imbedded in the tire... and it's VERY small thus is hard to see.

- Checking & cracking in the tire due to age thus pressure slowly bleeds off - perhaps only when the vehicle is moving.

- Damage to the mating lip of the tire that cannot be seen when the tire is mounted... yet air escapes during vehicle ops due to flexing of the tire.

- An unnoticed rim defect. The rim itself may have a hairline crack... or have corrosion issues. Only a careful inspection may reveal the issue.

- The rim may be warped or worn at the lip thus allowing air to escape.

- Is the tire an appropriate and matching size for the rim?

- Is the car being driven at a level beyond the limits of the tire?

- Is the vehicle being loaded with excessive weight?

- Is a friend, family member, co-worker or neighbor pranking you?

- Is a friend, family member, co-worker or neighbor intentionally sabotaging you?

The bottom line here is that there is always a root cause as to why a tire loses pressure - you've got to find it. Some folks may claim that they pulled the tire and rim off the car and used a dunk tank to see where air was escaping but found nothing. Well guess what? That may be true but you still have a leak and the reason why is because the conditions aren't correct for air to escape. In other words, the tire and rim has to be mounted on the car for the condition to be in existence. Sometimes a tire can be on a car for a week or weeks... and not lose pressure until the car is driven! Other times, you simply have to dismount the tire to fully inspect the tire inside and out as well as the rim and the valve stem to discover the root cause. If there is any doubt whatsoever about any of the three things (meaning a sound & serviceable rim, tire & stem) then replace them. Injecting a soap & alcohol mix may stop a leak temporarily just like a product such as tire slime might. However, it would be wise to conduct a full inspection because something serious could be going on. One of the most common problems is aged valve stems and/or tires... which definitely shouldn't be on the road in the first place. Blowouts can kill - don't roll with parts that shouldn't be on the road.