Hey folks.

Opened up my bonnet today for my weekly check over everything and noticed my oil cap had come off...
It's become really loose and I reckon engine vibration has caused it to simply fall off.
I checked the cap and there wasn't any mayo which is good however when i checked the dipstick there was a fair bit of it all up the stick It's not loosing coolent I know that as I put some new stuff in it last month and it's all still there and Plenty of oil so would having no Oil cap for a 22 mile journey cause all this mayo? Obv going to do an oil change but before I do is there anything I should consider?

Thanks for any help.