I just happened to open my hood tonight on my 2008 DC, and I notice a light spray of oil over my engine cover and on the battery cover. I notice that my oil reservoir is missing the cap! I had my oil changed for the first time a few weeks ago, but it doesn't seem like I could have gone this long with it missing and not noticed something awry.
I checked the skidplate and engine compartment, but it was nowhere to be found. I checked my oil level, and it seemed okay (about 65% between the two dots on the dipstick). And my oil pressure was okay, but I hate to think how long I've been driving like this.
What should I do to prevent any further possible damage? Or is this not a big deal and I can just get a new cap? I'll go to the lube shop and have them top me off and check everything, of course.