I use cheap mineral oil.

For the 1st 100 miles, varying load on the engine bellow 300rpm. I ususally take it up into the hills round here as this gives a lot of up and down gear changes and varying loading on the engine from coasting down hills and having to work the engine to get up hills.

After 100 miles, a fresh oil filter and oil and off I went again. Same theory, plenty of load on the engine up to 5he 500 mile mark with revs upto the 3.5k mark and using boost.

Fresh filter and oil for the next 500 miles with the same theory but taking it upto 4.5k rpm with full boost.

After the 1000 miles is complete, new filter and some decent oil. Take it for a set up and off you go.