Hello, Jim Marshall and All:
Here is a site for polishing that may help you. I found this site to have step by step instuctions that are very easy to use and print. Their products are used on airplanes and Airstreams. It may be able to help some of you get your Tear's to shine. I don't know how bad your scratches are Jim but this is one place you can start to see if this is an option for you. The method is to start with a course grade of polish and work to a fine grade for luster. I have done business with Tom Numelin of PerfectPolsih and his service and products were delivered promptly. Jim if you emailed Tom Numelin @ email@example.com
he may have some remidies or suggestions for scratches?
The Perfect Polish Home page > http://www.perfectpolish.com/
The short and the long of it.
On the Perfect Polish site there are these detailed instructions on how to get aluminum to a luster.
Their main polish is "Nuvite"
Grades of Nuvite from a course grade to a fine grade for a finish.
See Grades here > http://tinyurl.com/rchkk
Nuvite application guide > http://tinyurl.com/oc4qu
Using a compounding polisher > http://tinyurl.com/7lfgq
Using a Cyclo polisher > http://tinyurl.com/odvws
Polishing Tips > http://tinyurl.com/reheo
Example of an Airstream project > http://tinyurl.com/mjvny
Hope this helps bring your Tears to shine?