2015 CX-9 Transfer Case Question

JustRay

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2015 Mazda CX-9
I am looking into purchasing a used 2015 CX-9 with AWD. Does this model year have the newer transfer case without the oil sludge problems?
 
I am looking into purchasing a used 2015 CX-9 with AWD. Does this model year have the newer transfer case without the oil sludge problems?
Yeah 2015 CX-9 AWD still has the same transfer case like previous MYs. If you change the gear lubricant with proper one once every 30,000 miles for front transfer case and rear differential you won't have any sludge issue. The only problem is it's a hassle to change as there's no drain hole for it. 2016 2nd-gen CX-9 has Mazda own i-Activ AWD system the front transfer case and real differential both have drain holes.
 
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