Hey my oil pressure guage has been below the little tic marks not on the red but about 3/8 inch away from it and it varies day to day. i have split my oil i put into it to half 10w40 other half 20w50 and i added that really thick lucas stuff... i have no engine knocks, tics, or anything which leaves me to believe its the guage cluster or something electronic. what could it be??? it just bothers me to see it like that and sometimes it scares me for a moment when i check all my guages to see that.

 

i know when i've removed my cluster if you dont tighten the bolts to it the connections will be loose and cause everything to drop or one at a time, eaither pull it out and trace where ur oil pressure guage comes to and clean it or make sure theres no dubri on the "pins?" or w/e u call it. and make sure its tight.. i could aslo press the guage cluster in and everything to resume to normal.. try pressing on it and see if it changes. thats all i got