- Joined
- Mar 15, 2008
- Messages
- 4,983
- Points
- 969
It is not only the sump that holds oil and has to drain.
On modern (D)OHC engines, a fair amount of (used) oil will stay in the head to lube the camshaft(s), at start up.
By keeping the car level, you really will get the most oil out, it is designed to do so by the manufacturer.
It is very well possible you will drain the sump, but not the heads, as intended by the factory, by jacking up the front....!
No dealer or decent workshop will ever jack any car up to get the oil out...!!
On modern (D)OHC engines, a fair amount of (used) oil will stay in the head to lube the camshaft(s), at start up.
By keeping the car level, you really will get the most oil out, it is designed to do so by the manufacturer.
It is very well possible you will drain the sump, but not the heads, as intended by the factory, by jacking up the front....!
No dealer or decent workshop will ever jack any car up to get the oil out...!!