Did a full service on the coupe about 3 months ago, wasn't sure what oil it had in previous so went for VX's finest 5w30 fully synthetic thinking that the highest quality stuff was the best thing to use for my engine. Now i have 2 noticeable problems, firstly after a bit of hard driving and then coming to a standstill, at traffic lights for example, there is a very strong smell of burning oil inside the car, nothing at all when your moving just when you stop. And secondly, my engine has now started using oil, which it never did in my first 8/9 months of owning it, never had to top oil up once, always bang on MAX. After doing a bit of investigating i noticed that there is wet oil on the outside of the turbo. Can't see exactly where its coming from but its obviously running down and landing on something hot and burning off when the engine warms up, hence the smell and drop in oil level.
What i need to know is do you think it is pure coincidence that these problems have both just started a few weeks after changing my oil or are they directly related?
Are these problems because of the grade of oil that i have used?
If i change to something like 10w40 semi will this cure the problems?
What is likely to be the reason for this oil leakage and will it be permanent damage or be cured by changing oil grade?
Any help much appreciated people.