Oil levels

[big yinn]

Originally Posted by MDS40

My oil changes are done by extracting via the dipstick hole.
I then need about .75 of a litre more than the stated 5.8 litres to get near the top mark.
I guess you can remove more this way than by draining from the sump plug.

To me thats not the best way to do it and theres a risk you leave bits of crap at the bottom of the sump. I don't see how fighting gravity can get more oil out of the sump than draining it directly from the sump?
If you're adding more oil than specified you run the risk of oil forcing its way out of seals etc because its got nowhere else to go. Stick to the specified quantities.

[MDS40]

[QUOTE=big yinn;2676651]To me thats not the best way to do it and theres a risk you leave bits of crap at the bottom of the sump. I don't see how fighting gravity can get more oil out of the sump than draining it directly from the sump?


The sump drain plug is about 4cm above the bottom of the sump so my suction tube reaches to the bottom and removes more oil.
Its a myth that this method leaves behind crud.
Nothing to do with gravity or the power of suction.

i suspect most garages don't bother to remove the under shield and do oil changes this way.
I only fill to the top mark so no danger of overfilling ( non diesel )
Each to their own though.