[titus1.1]

It sounds to me like it's coming from the top on the left side of the engine. I have notice a slight drop in my oil pressure lately. Normally it will run at 40 psi but lately after heat up it will run more in the 35 to 37 range. I 've always change the oil every 3000 miles and I've always use either Castrol of Valveline 10W x30 oil, never synthetic, with a fram oil filter( high mileage ) after the first 100k. I haven't did the manual oil pressure check yet so I will get back to you on that. Thanks for the input everyone