oil

Hi Guys, thinking my valve stem seals are on their way out. I only notice a little puff of smoke after a traffic light stop then pull away etc. No loss in performance, I'm now running 5/30w oil. Any other options? 2011, 156bhp. 70k. How much do they cost to replace? Will it fail mot in...

like a few others, my oil light came on, I had difficulty reading the dipstick, topped up the engine, after a couple short drives the oil warning turned off. My concern now is that I don’t think the oil was a low as I originally thought and I’m worried I’ve over filled. Very hard to see, but the...