Ford Focus engine oil & filter change ?

I have a quick question about my Ford Focus 1.8 petrol. I have just had my car serviced and checked the oil level myself before I left the garage. I was minutely about the max mark on the dipstick, so I wasn't concerned. I checked it again after it had been left standing overnight outside my house and found it was slightly higher than at the garage. When they change the oil/filter does some of the oil they add remain in the oil filter until the engine has been running and is that the reason for the discrepancy ?Ford Focus engine oil %26amp; filter change ?
When left lying, oil can drain down from around the cam shaft %26amp; cylinder head area, this is why the oil level is different, Doesn't do any harm as there is enough oil held in the oil galleries to supply the critical components on start up.Ford Focus engine oil %26amp; filter change ?
The dipstick measures the oil level at the sump (the lowest point in the engine). If your engine is hot, oil is still surrounding parts that are above the sump. The ';trickle down Theory'; is at work here. As it cools, more oil is registered.





Gravity. What a concept.





To quote the Aussies, ';No worries, mate';.
Two things to think about, first when the engine has been running the top section of the engine will be full of oil (Cylinder head etc), it takes some time for this oil to drain back down into the sump. Secondly it is always recommended to check the oil when the engine is warm for exactly this reason.


Ja.
When you change oil and filter. The oil will be higher right after you change oil because your oil filter does absorber some oil. So that is probably why. But if it keeps going down you probably blew the oil pan gasket and it would be leaking around the oil pan.
Oil level should be checked on a warm engine. The amount of oil your car holds should be close to 5 quarts with filter change. Check it warm, same goes for transmission fluid. After the engine sits the oil that would normally be in the head has drained to the oil pan. That is why they say cold starts are what damages an engine not the amount of miles/Kilometers.