How sensitive is a timing belt or serpentine belt to getting a little oil on it?

Question

Every once in a while, a drop of motor oil will get on the timing belt or serpentine belt when adding motor oil.

Is it a good idea to wipe it off right away?

If so, even after wiping it off, some motor oil residue will remain on the belt.  Is this an issue?

Sam · Answer

No, it is not an issue.

Serpentine belts are very tough. Motor oil will not harm any rubber in or around the engine.

Wipe it off to keep the engine bay clean.

One Answer