tama si otep. it's always better to follow the manufacturer's PMS, not the dealership's PMS. ung PMS stated sa manual natin is general for ASIAN countries with tropical climate. ibang version na kasi ng DMAX ung mga nasa cold countries with different engine, so their PMS differs from ours.. so don't be afraid if sinasabi ng mga dealers na yan na it will wear faster, they are not concern sa mga sasakyan natin, they just want to make money by insisting their PMS because it's part of their business..