gearbox oil

Sent a sample of my 43,000km factory gear box oil off for analysis and it read an abnormally high amount of Aluminum (49). Estimated power to mileage: - stock power from NEW - 15,000kms. - Stage 2 E40 Stock turbo 15,000kms - 35,000kms. (Total 20,000kms) - Upgraded turbo + Port injection...