Filters
Diesel Filters
Wix Filters - Oil
Wix Filters - Fuel
Wix Filters - Air
Wix Filters - Cabin Air
Wix Filters - Coolant
Wix Filters - Bases
Baldwin Filters - Oil
Baldwin Filters - Fuel
Baldwin Filters - Air

Napa Wix
Nafa Baldwin
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Wix Filter/NapaGold Oil Filter vs ACDelco


ACDelco 1 ACDelco 2

NapaGold Oil Filter vs ACDelco

ACDelco 3 ACDelco 4
  • ACDelco uses a leaf spring rather than a coil spring; the leaf spring must always seat properly onto the end cap. Additionally, a leaf spring can bend under high pressures.
  • ACDelco uses weaker fiberboard end caps rather than the metal ones.
  • The filter media inside the ACDelco was glued to itself, rather than crimped with a metal bracket.
  • ACDelco uses a phenolic resin which helps to bind the media and protect during high temperatures.
  • The ACDelco uses a plastic-frame as its center tube; the tube is open on both ends. Only the ACDelco and the STP use this plastic frame.
  • The ACDelco filter uses a rubber anti-drain back valve. The anti-drain back valve is used to prevent oil from draining back to the crankcase after shutdown. A silicone valve is less likely to break down during high heat than the nitrile rubber.

NOTES:

  • ACDelco and the STP had the largest flow holes of all the filters.
  • ACDelco and the STP weighed the least off all the filters, probably due to the weaker fiberboard end caps.