Hi, I have same problem. Been using 10w30 since post-winter. (suggestion to change to other grades?). Gauge went taco since my last post a while ago. Now that I finally just got back home from my 7.5 mths trip (25425km later), I'm trying to put in a gauge.

My question is: Where is that thing that I have to take out to screw in my aftermarket oil gauge? (A picture will help a lot)

Is it that part with the black round rubber boot over below the oil filter or the little thing beside (left) of the oil filter?

Do I need to drain the engine oil first b4 unscrewing anything?