do i need to drain the oil to install a oil pressure gauge. in the instructions included with my gauge it say i may need to but in the mods section it doesn't say anything about having to. i just wanna make sure i don't remove the OP switch and get a face full of oil. TIA

Is it elec. or mech.? I have the elec. one and all I had to do was remove the stock oil psi. sender and and T it off with the autometer one. This can be a bitch because your pretty much working be feel and your reaching way up at the back of your engine.

Short Answer: If you have an Elec. one, NO. You don't have to drain your oil.

If your have the Mech. one then I don't know shit. :thumbsup

yeah its got an electrical sender unit that needs to be "T" with the stock sender.

When I installed and uninstalled mine, a little bit of oil came out but it wasn't more than 1 oz or so.


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