The national standard for diesel fuel is South Africa is SANS 342:2006. The national standard for unleaded petrol in South Africa is SANS 1598:2006.
Centron treated diesel fuel and petrol fuel is SABS tested, approved and certified to SANS 342:2006 and SANS 1598:2006. Centron is rectified by SABS to SANS 342:2006 and SANS 1598:2006 on an annual basis.
Therefore Centron treated diesel and petrol fuel is fully compliant with national standard and fuel requirement laws of South Africa therefore CANNOT void OEM engine warranties