Oil selection

full synthetic 15w-50 , not a blend

i like mobil 1 but royal purple,amsoil , are all good

I would be running something thinner in a new mill, unless you specifically had it built loose.

Redline D4 works well in the T5, if desiring a synthetic.

Good luck.

Broke the cam in with 30 wieght,then got the ring seat and broke in with 20W-50 conventinal.And now am currently running 15W-40 Royal Purple synthic.But I am think about going back to the 20W-50,as the oil pressure (I dont run an oil cooler),was stabile even if the car got up in the temps a little.Once warmed up,the 15W-40 syn. has bout 25-30psi,while the 20W-50 has about 30-40psi for idel and the 20W-50 stays right at about 60psi after 2000 or so rpm's.