i read that if the grade is xWy
u can use the oil with any rating(for eg. aWb) as long has a<=x and b>=y
by that logic the 10W30 oil is not sufficent for higher temperatures but will help in colder climates
i asked them is it safe to use this instead of 20W40 he said yes...activa k liye perfect hai...japan se specially import hota hai...
what do you guys suggest?




) I'm not the engine oil expert guys, I'm just a guy how has interacted with the "real experts" and has some knowledge gained with little experience.

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