I just bought my frontier about 3 months ago, and I noticed that I've got a leak coming from the valve covers (both sides). It's a 2005 LE V6. A mechanic told me that because of the material the valve covers are made out of, you have to replace the entire cover, there's not just a gasket. I've been searching for 3 days now and I can only find info on the 1st gen, nothing about the 2nd gen v6. Can someone let me know if he's full of crap and if I can just buy a gasket or if I really do need to buy a whole new valve cover? someone else has had to run into this by now. Thanks.