When I had the bonnet up on my ford focus 1.8 petrol (Zetec E) I noticed at the front of the engine near where the cylinder head cover joins the top of the engine it looked like there was grease or oil there which I wiped off onto some paper and it looked jet black. I was alarmed to see this although I don't think I have any engine oil leaks as I check the dipstick once a week and the level doesn't change much. I am wondering if it could be from where oil may have been spilt on previous oil changes at the garage. Or could it be from when the timing belt was changed.
Any ideas are welcome ,thanks.
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it may be where the garage had spilt some oil or it may be engine fumes where the oil fill cap has not be fitted right
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