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ester oils


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the ester is the base oil itself,not an additive from what i understand.its derived synthetically from reacting an alcohol with an acid,basically.how it translates to the drz is it benefits the transmission by resisting the shear forces exerted on the oil by the gears better than conventional mc oils.unfortunately the oil has always been expensive to produce and to have to service the bike so often but, that's the reality of maintaining a modern 4 stroke that shares the crankcase with the trans.

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Esters are mostly used as a seal conditioning agent to offset the (negative) effects of other synthetic basestocks or additives. For example a PAO basestock will almost always use a small amount of ester with it. On the other side of the coin, a ester basestock will also need an additive to negate it's effects on seals. It's a tricky balance.

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