Confirm fluid type and procedure
Read the owner’s manual or service info for the exact transmission fluid specification (e.g., ATF+4, Toyota WS, Honda ATF DW-1, ZF Lifeguard, CVT-specific fluid). Note drain-plug vs. pan drop, filter service interval, and fill method (dipstick tube or sealed fill plug). Use only the specified fluid — the wrong ATF/CVT fluid can damage the unit.