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What Oil Filter Adapter Do I Need? - 6G Celicas Forums

Topic #43368 1 posts Started by fanboy95
I just got an oil pressure guage but the intrustructions say I need an adapter for it to work. I've found 3 sizes for them:

20mm 1.5 Thread
3/4 unf-16
18mm 1.5 Thread

I have an st if that helps any.