[Pearman1961]

Herb, a long answer to your question, Where do you keep your oil level?
Due to some sloppy and unclear etchings on the dipstick I chose to do my first oil change at 25 hours. It was indicating 5 1/2 on the back and 6 on the front. The second oil change was at annual, another 50 hours later. We drained and measured the waste oil and recalibrated the dipsticks. I start with 7 quarts and now keep it near 6. I am still getting more oil out of the front breather than I am use to seeing. In my C182 I installed the AirWolf separator and was very impressed with its performance. I looked for the C337 on the AirWolf chart and could not find it. That's why I asked the group what they used. I wonder if Walt did a field approval?