Oil change interval (km) 1,500 10,000 15,000 18,000 New lubricant requirements and specifications of passenger car motor oils. The new requirements for passenger car motor oils will likely be designated API “SK”. The API “SK” requires no new engine tests compared to those used to docu...
(0.19 ± 0.17 mg L−1) were measured weekly with colorimetric kits (LabconTest Alcon®, Camboriú, SC, Brazil). The non-ionized ammonia (0.001 ± 0.001 mg L−1) was calculated according to [29]. The tanks were cleaned weekly by siphoning with a 10% water change. The fish were ...