Hi all. I thinking about adding on a 3rd party oil temp and oil pressure gauge and am looking at an adapter made by the company that makes the gauges. But I don't know what size our oil filter is.

Is it m20, m18, 3/4 UNF 16, or none of the above?

Thanks
~Tweak

 

M18 if I remember correctly. M18 is the same thread as an oxygen sensor so if you have a spare filter and a spare O2 sensor, you can prove it.