Ok I take a run on the hwy upto about 75-80 mph then take a cut off to get to work. By the time I'm off the highway and onto the 30 mph zones again I get a distinct buring oil smell in my car coming in from the vents.
My concern is: could this be the UIM problem or bad seals on my valve covers or both?
Brian, how many miles (ok km) on it now? Just did the lowers on a 2000 SSEi (not mine) with around 85,000 miles. The lower gasket still looked pretty good...was just starting to show some warping. To answer your question, it is likely to be the rear valve cover leaking oil onto the rear maniflold. You may want to consider the "whole job" though if you're getting up there on kilometers.