This list is getting a little quiet, so I thought I'd try to stir up the nest a bit!
I just read this on another forum:
The following data is taken from the Approved Lycoming Overhaul Manual
available from Lycoming. Note that the maximum consumption allowed
varies according to the model and is based on consumption at full rated
horsepower and maximum rated rpm. All data is at maximum oil inlet
temperature of 245 degrees Fahrenheit:
From what I've read, Subaru-powered aircraft owners don't need to add oil between changes (25-50hrs). I know I've never added oil between changes in any car I've owned since the 70s.
One less thing to think about when flying with a Subaru, at least.
I just read this on another forum:
The following data is taken from the Approved Lycoming Overhaul Manual
available from Lycoming. Note that the maximum consumption allowed
varies according to the model and is based on consumption at full rated
horsepower and maximum rated rpm. All data is at maximum oil inlet
temperature of 245 degrees Fahrenheit:
Code:
ENGINE MODEL Maximum/HOUR
Pounds Quarts RPM
O-235-C1,-C1B 0.9 .50 2600
O-290-D,-D2 Series 1.0 .56 2600
O-320-A,-B,-D,-E,IO-320-A,-B Series 1.2 .67 2700
O-340-A Series 1.3 .72 2700
O-360-A,-B,-C,-D 1.4 .78 2700
IO-360-A,-C 1.5 .83 2700
IO-360-B1A,-B1B 1.4 .78 2700
HO-360-B 1.4 .78 2900
HIO-360-A,-B,VO-360-A,-B,IVO-360-A1A 1.5 .83 2900
O-540-A,-B Series 1.8 1.00 2575
O-540-E 1.8 1.00 2700
O-540-F 1.8 1.00 2800
IO-540-A,-B,-E,-G 2.0 1.11 2575
IO-540-C Series 1.8 1.00 2575
IO-540-D 1.8 1.00 2700
IO-720-A1A,-B1A 3.0 1.67 2650
From what I've read, Subaru-powered aircraft owners don't need to add oil between changes (25-50hrs). I know I've never added oil between changes in any car I've owned since the 70s.
One less thing to think about when flying with a Subaru, at least.