Hi,
It has been awhile since I had a uoa done on my engine oil. In the last year I switched from Mobil 1 ESP 5W30 to Castrol Edge 5W40. I also held off because I installed an oil cooler.
The car is now seeing regular track time, and it starting to see some oil brief oil starvation depending on the track surface and elevation changes. I figured it would be a good time to send out a sample to establish a base line.
Ignore the sample time, they added a zero in there. It only has just over 1000 miles and two full track events. Roughly 2+ hours on track seeing oil temps in the 230-240F range. Car also runs E85 while at the track.
Everything to me is solid. However I see some shearing. I believe this oil starts at car 14.5. it has sheared to 12.0 in only 1000 miles. I'm also surprised by the lack of Moly.
Anyone care to share their thoughts?
UOA:
Spreadsheet tracking all UOAs:
https://docs.google.com/spreadsheet...sLH46QL80vKxc0UpB1Mv0c/edit?usp=drivesdk
It has been awhile since I had a uoa done on my engine oil. In the last year I switched from Mobil 1 ESP 5W30 to Castrol Edge 5W40. I also held off because I installed an oil cooler.
The car is now seeing regular track time, and it starting to see some oil brief oil starvation depending on the track surface and elevation changes. I figured it would be a good time to send out a sample to establish a base line.
Ignore the sample time, they added a zero in there. It only has just over 1000 miles and two full track events. Roughly 2+ hours on track seeing oil temps in the 230-240F range. Car also runs E85 while at the track.
Everything to me is solid. However I see some shearing. I believe this oil starts at car 14.5. it has sheared to 12.0 in only 1000 miles. I'm also surprised by the lack of Moly.
Anyone care to share their thoughts?
UOA:
Spreadsheet tracking all UOAs:
https://docs.google.com/spreadsheet...sLH46QL80vKxc0UpB1Mv0c/edit?usp=drivesdk