WD-40 has many helpful uses, including as a way to quiet squeaky door hinges and other moving parts, but is it ok to spray WD-40 on noisy car engine belts?

Wet timing belts can also cause another form of engine failure: one that is unique to this type of belt. As the wet belt gradually picks up wear and tear over time, small particles come off the ...

The theory is that the oil keeps the belt lubricated, allowing both the belt and the engine to operate more smoothly. In theory, this reduces noise and improves fuel efficiency.

The idea is that the oil keeps the belt lubricated, allowing the belt and the engine to run more smoothly. In theory, this reduces noise and improves fuel efficiency.