[schoward]

Recently changed oil like I always do replacing shell 15/40 rotella with same. Filled it kind of hastily but did not appear to overfill. I dumped the oil in kind of fast (as fast as funnel could take it) but level seems perfect as always. Stick level ok and gauge is about 3/4 when warmed up.

Old oil had about 2-3k miles on it.

Car runs fine but idle seems slightest bit lazier now especially in the warm up range. Cold ok and hot pretty normal. Have done this many times and seems weird this time. New oil has about 100 miles on it.

Any experiences like this or ideas?