Recent content by Mad_Max_Sam

Originally Posted by RDY4WAR Valvoline VR1 is essentially just Valvoline conventional with 60% more ZDDP thrown in. Same add pack otherwise and same TBN. ...and that's fine - so long as it's the proper oil for flat-tappet cams, is available locally, and doesn't require anything extra...

I was curious about the VR1 "racing" oil so I called Valvoline and they confirmed that indeed the VR1 flat-tappet oil is good for daily-drivers (the "Racing" part kinda really means "high performance" - big cams, etc.), while their Pro V is indeed a 'race-only' oil, and while it can be used it...

well....FWIW....I just talked with the folks at Castrol, and they said the only oil they currently make with the anti-wear package for flat tappet camshaft engines is their 5W50 Edge. I also called the Quaker State tech line...and the recorded message said 'welcome to the Shell Corporation', so...

Originally Posted by caprice_2nv So that's words straight from Shell basically saying they think zddp is important for flat tappet. Unless they are just saying it because they're aware that the majority of old car enthusiasts are under the impression that it is important? It may be easier for...

one of the criteria I'm also trying to satisfy is using an oil that is 'off-the-shelf' at most parts stores, Wally World, etc., and while that is of course not a show-stopper it is one piece of the equation I am trying to balance, as are most folks I'd imagine. I've used the J.G. oils before and...

...while I appreciate the OP 're-opening'(?) my topic, I think I got the answers I was looking for - mostly what to make of the blog-that-shall-not-be-named. One of the reasons I was asking is related to a fresh 440 I will be running in my rock crawler (02 Dakota QC on 40's and a lot of other...

with all respect, I would be delighted to continue to use what I have been using in the real world that has been working - I am simply curious about what seems to be a significant amount of research that was done specifically about oils, and it sounds like while the research is extensive it may...

I appreciate the fast replies. I had done the recommended searching and came up with more hits than I could count. I am using the Rotella T4 because Shell says it has the correct stuff in it for flat-tappet cams, including a solid lifter Cummins, and is also what the bottle states, so I thought...

hey peeps - so I've spent several hours scanning the lab results from 540rat and I'd like some confirmation about what the 90,000 psi 'magic number' really means. Is that the 'requirement' for flat-tappet cam engines? I own several 'flat-tappet' hot rods, including my mighty Cummins 5.9 (solid...