2002 Mazda B4000 Owner's Manual - Page 243

Maintenance and Specifications SAE 5W-30 engine oil is recommended. Only use oils "Certified For Gasoline Engines" by the American Petroleum Institute (API). Use an equivalent Mazda Specification. Do not use supplemental engine oil additives, oil treatments or engine treatments. They are unnecessary and could, under certain conditions, lead to engine damage which is not covered by your warranty. Change your engine oil according to the appropriate schedule listed in the service maintenance section. Engine Oil Filter Recommendation Change your engine oil filter according to the appropriate schedule listed in the service maintenance section. Mazda production and aftermarket (Mazda) oil filters are designed for added engine protection and long life. If a replacement oil filter is used that does not meet Mazda Material and design specifications, start-up engine noises or knock may be experienced. It is recommended you use the appropriate Mazda oil filter (or another brand meeting Mazda specifications) for your engine. BATTERY Your vehicle is equipped with a Mazda maintenance-free battery which normally does not require additional water during its life of service. However, for severe usage or in high temperature climates, check the battery electrolyte level. Refer to the service maintenance section for the service interval schedules. Keep the electrolyte level in each cell up to the "level indicator". Do not overfill the battery cells. 243