430 lower mesh filter

If you look in the wsm it is supposed to be changed. You are correct that many Indy and dealers do not change them...but many do. I believe some are not doing it since we drive car very little and usually change oil annually with a few hundred maybe few thousand miles on it and the dirt just doesn't accumulate. Grit , shavings, dirt will occur over miles not time.

If you haven't done it in 7-8k miles, or if it has never been done .. I would highly consider changing it

Let us know what it look like and how many miles was on it

The other filter that is often missed is the one in the gear box.... That one should be cleaned every time since I have seen that getting dirty quicker

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For the sake of completeness, I think the filter Dominick is referring to is this one: 182100 filter and the gasket 182119 o-ring

 

The mesh filter screen is typically cleaned and reinstalled. If it is damaged in any way either by removing or cleaning, then it must be replaced

 

The gearbox filter is pretty robust and costly so I would recommend try cleaning first but use a new o-ring as mentioned above

The motor oil screen is filmsy and not costly so I just replace it

Imho

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Per the workshop manual page 4 of 6 of file uploaded.........

"Proceed with the cleaning by dipping the filter in a degreasing solution then drying it with compressed air. Take
care not to damage the mesh; If any tears are found in the filtering element, the filter must be replaced."

 

Thank you clarifying that ...

I still feel for 7 dollars or so I just order one and not fuss with cleaning the one in car ..then if breaks stuck till I get a replacement

Just worth to me .. but you are correct cleaning will work just the same

Thanks

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