Filter Design Differences

[Ramblejam]

This is for the Saturn S-Series, which has a spin-on A/T filter.

Some filters use six holes through the tapping plate, with three solid tabs:

Others use eight holes, with the tabs a pass-through design:

Makes me wonder about flow differences...

 

[901Memphis]

I doubt the transmission ever pumps enough fluid to get anywhere near the limits of the filters flow

 

[Dyusik]

Originally Posted By: 901Memphis
I doubt the transmission ever pumps enough fluid to get anywhere near the limits of the filters flow


Especially with atf viscosity of sub Sae20.
I have started a car with radiator disconnected and oil filter removed, and the amount of oil came out was significantly more than atf.

 

[i_hate_autofraud]

I would not worry, regardless of the holes you see, the pores in the filter media is way smaller LOL !!

 

[Ramblejam]

Correct me if I'm wrong, but it sounds like you guys are talking about the cooler circuit, not line pressure.

Here's a diagram of the Saturn transmission; notice where the spin-on filter is located.
For some context, in this application:
Engine oil filter (Wix 51348) - 275 PSI burst pressure
Transmission filter (Wix 57101) - 780 PSI burst pressure

 

[TheLoneRanger]

Why would Saturn design a filter in the line pressure circuit?
Seems like there would be less chance of failure if it were in
the cooler circuit (with much less pressure).