Originally Posted by ZZman
Originally Posted by Sayjac
Unsurprisingly, looks good at 3k miles. These good for much longer. As I see no bypass, filter must be for a vehicle with a block bypass. Thanks for c&p.
It uses the spring seen in the pic for bypass.
I would run these 10,000 miles no problem as they are a premium filter.
The coil spring is the compression spring Wix/NG uses to hold the filter element, adbv, parts tightly together. Many others use a leaf or flat spring. The 5/1040 noted, primary applications are older GM vehicles, that explain no bypass. Those vehicles have engine block bypass.
Edited comment
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It uses the round metal piece to the right of the spring for bypass.
That piece is a metal spacer Wix uses to take the place of thier traditional thread end bypass for block bypass applications like this, or the minority applications that use dome bypass. I'd assume it's used for uniformity of canister construction.
I'd agree Wix/NG good for ~7500 to10k miles in a well maintained vehicle.