Recent content by pbiancardi

I am quickly realizing that these things have so many quirks they are near impossible to diagnose. Why does everyone say they are "bulletproof"?? I am not going to lose sleep over it, everything else is in great shape on it, worst case scenario I swap in a rebuilt engine.

Originally Posted By: Donald I would try to fix the real problem, not mask it with oil. If its a cracked piston skirt you should consider replacing the piston before a chunk of piston skirt falls off and causes catastrophic failure. When I replaced my Jeep engine at 96K, the rod was no longer...

Originally Posted By: Rand Is their racing oil ok for street use? some racing oils have low detergents/tbn. That was why I was asking. The 0w30 data sheet shows 9.0 TBN, is this ok to use? http://www.amref.com/CMSFiles/File/bp_pb/7126_50_44_58_19_BP_PG1_Multigrade_HP_Oils_PB.pdf

Well since it is quieter I will stick with the Brad Penn oil and see how it goes, apparently that is not going to cause me any additional problems. Would getting a Blackstone report after 3,000 miles give any insight into what the issue might be?

So would it make sense that the Brad Penn oil would quiet it down? Mechanic just had the oil pan off to change gasket and oil pump, said there was no metal there so I am assuming it hasnt broken a skirt yet.

Hi guys, I know this is the go to forum for oil questions so here I am, any help is appreciated. I have a 2000 Jeep Cherokee with 166,000 miles and I had a knocking sound at startup which goes away once it is warmed up (here is the sound with 5w30 Pennzoil Dino Oil)...