Got a 1994 v8 silverado. Replaced the oil pan gasket and drain plug a coupla months back to stop a leak from there. Starting today I have a class 2 oil leak but cant pinpoint the origination. It appears to be comimg from possibly the engine block area, as the drip starts above the oil filter. We have had some pretty hot weather lately, mid 100's last week 102 so far this week. Any ideas on where I should focus, or what it cpuld be? Thanks in advance.