oxfordpaul 0 Posted February 22, 2005 Guys, my oil was really low so have topped up with about 1 litre of GTX Magnatec (10/40). Since then the engine is noisier when it's warmed up. It's totally smooth from cold and then a faint noise starts in the engine, doesn't really sound like tappets but it is a similar noise, from nowhere particular in the engine (not the chains I'm sure). Any ideas? I'm not sure what oil was in from the service, maybe it was thicker...should I go to a non semi-synthetic oil? Quote Share this post Link to post Share on other sites