In February 2010 at 114,000 miles, I had my valve cover gaskets and tensioners replaced because the valves were seeping oil causing a burning smell. Just 17 months and 8,000 miles later, a burning smell has returned. It's not as bad as it was, and I can't smell it (yet) while I am driving.
Are my valve cover gaskets bad AGAIN? If I ignore it, what is the downside? Will I eventually damage the engine? How long (time and miles) do I have? I only drive it 100-200 miles per month and one 2,200 mile trip per year.