You have to dry them out first. Leave them in the sun for about 3 days and you should be good.
Dried dog turds are better, though. Try and get the white chalky ones. A lot of people like to reminisce about how you don't see them any more, how they were a 'thing' from the 70s and 80s... but having started our dogs on a raw food diet, which includes raw meat on the bone, I can verify that white turds are still possible.
If you want, I have an inexhaustible supply of white turd, for all your oil-soaking needs.
Free to anyone willing to come collect...!