After the sled has warmed up and been driven awhile it gets very very boggy in the low rpms but screams in the mid to high rpms. It was run low on oil but not for very long before it was shut down. I was wondering if anyone has ever heard of running duralube crankcase treatment thru with the normal oil to try and bring it back to life or not? A friend of mine told me about using this stuff but I'm sketchy on doing so. I've sank alot into the sled with the suspension and pipes and a few odds and ends and not really wanting to tear it down and rebuild. any thoughts or opinions on this is appreciated.