A simple visual check for wheel seal leaks that helps catch a problem before it becomes a safety issue.
Wheel seal leaks often show up first as a faint oily residue that's easy to miss during a quick glance — catching it early, during a normal walkaround, is a lot cheaper than catching it after it's contaminated a brake.
Where to look during a walkaround
Check the inside face of each wheel and the area around the hub for any oily film, drips, or buildup of dirt mixed with oil (which sticks more than dry dust would). A clean hub with a sudden dark ring around it is worth a closer look.
Feel for heat differences (carefully, after driving)
After a drive, and once it's safe to approach, a wheel end that feels noticeably hotter than the others on the same axle can indicate a wheel seal or bearing problem, even before a visible leak shows up. Compare wheel to wheel rather than judging temperature in isolation.
Don't ignore a "small" leak
A light film today can be an active drip next week, and the progression isn't always slow or predictable. Wheel seal leaks that reach the brake surface or lead to a bearing running dry can escalate from a minor repair to a genuine safety issue faster than most drivers expect.
Catch it during the walkaround, not after it fails
If you spot residue, a fresh drip, or a hot wheel end during a routine check, call #1 Taz before the next long run. A quick inspection now is a much smaller job than a wheel seal failure later, and CJ can tell you honestly whether it's safe to keep driving in the meantime.
#1 Taz Truck & Trailer Repair
Cottonwood, CA