If four numbers or marks (1 to 4 or ▼ to ▼▼▼▼) are printed around the outside of the filter, use the following procedure to tighten the oil filter.
Spin the filter on until its seal lightly seats against the block, and note which number or mark is at the bottom.
Tighten the oil filter by turning it clockwise three numbers or marks from the one you noted. For example, if number 2 is at the bottom when the seal is seated, tighten the oil filter until the number 1 comes around the bottom.