NO i don't think it's gearbox oil as its not that pngent smell, also it's an auto... but it doesn't look red at all, so it's not ATF, but was wondering if it any of the other sort of moving parts that don't move when your stationary.... would movement effect the timing chain cover and/or tensioner bolt?? like i said, I'm not much of a mechanic so please excuse me if my questions sound a bit thick!!!