Does a Superior cold air sump change anything concerning the quantity?
My guess is that due to its construction, the oil pan itself lost a bit of the volume (to take oil) compared to a standard oil pan.
Therefore the level of the oil, lets take 6 qts, is slightly higher and will be vented overboard.......
So what is the oil quantity if you use a superior cold air sump?
What do the guys do who already fly behind an IO-360 with superior cold air sump?
Mit Fliegergruß
re-calibration of the dipstick is necessary!
I am just curious about the quantity!
Mit Fliegergru?
This may not be significant but I've often wondered if the marking on the dipstick indicate how much oil is in the oil pan, or in the engine?
Assume that the oil has just been drained and the filter replaced so there's no oil in the filter. You put in 8 qts new oil and let it settle. After first run, the filter will fill and I assume not drain back to pan too quick. Will the dipstick then read less by the equivalent of what the filter is holding?
Bevan
Lycoming specifically states to add one quart if using a filter for max and min oil levels measured by the dipstick.
A very respected sage who cashed quite a few paychecks from Lycoming Engines taught me that every engine has a 'happy spot' when it comes to oil level. The IO-360 I fly is around 5.5 qts. The O-320 I fly is around 4.75 qts. Anything more than those quantities on those particular airplanes ends up on the belly of the airplane. YMMV.
for the 4 bangers I consider 6 "Full", and add when it drops below 4.