Cadillac canister oil filter

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I just did the first oil (Mobil 1 5w30) and filter (AC/Delco) change on the Cadillac CTS I recently bought for my wife. Couldn't believe that the filter is a canister type. Just like really old vehicles used. Very strange to me, but it's got me wondering why GM went with this design. Is it to make the changes easier or is it supposed to filter better somehow (doubt it). If anyone has a clue about this, I would appreciate it.
 
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 Originally Posted By: rshunter
Reduced waste.
And if less steel is used, a higher profit margin.
 

Ndx

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well good 4u my mazda 3 have canister filter too ... you can see what your using, no need to cut open ... only +
 
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