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Oil and Viscosity

Old 01-15-2023, 11:41 AM
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Looking over my build sheet and he used Brad Penn 009-7150 10w30 oil. So for starters, I'm not trying to call out Brad Penn oil as good or bad. There's a positive and negative for every oil out there. I've never heard of it is really why I brought it up.
Does anyone know if this is just a high zinc oil or break in oil? I have a roller cam and associated parts so I'm not sure break in oil was necessary?
Is there anyone on here with 500 hp mills or larger running 10w30? I was going to run the VR-1 20w50 for no other reason than that's what I think is necessary.
I don't want to tie my other thread into this with this next question. Is it a good idea with internal tight tolerances to run a thinner oil? I have seen an unnamed "Engine Show" that uses an unnamed "oil" that has some additives in it to prevent it from "squishing out" from between the bearings etc. providing superior protection and that additive is available in different weights. My engines, with the 10w30, showed 60 lbs of oil pressure throughout the pull up to 5700 rpm. He installed new oil pumps that are supposed to be high volume. The number on the build sheet for the pump is: 10770 with a pick up whose number is: 241S. Not sure if those are his in house numbers or not. Thanks for your comments.
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Old 01-15-2023, 11:51 AM
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Well damn...you learn something every day! I'd never heard of that oil so did some research. I'd have to agree with you that the increased zinc and other additives are ideal for breaking in an engine, and likely would be fine for long-term use, even in the lower viscosity...but that is just my casual observation; I realize the high-hp mills have their own specific requirements or likes/dislikes.
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Old 01-15-2023, 11:52 AM
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The 10770 is a Melling pump which is considered to be an excellent piece.

If you have 60psi your oil is thick enough, wider clearances need thicker oil to maintain pressure.
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Old 01-15-2023, 12:34 PM
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I can't tell you guys how good your 2 posts make me feel. Best news in a while. Thanks again for your comments.
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Old 01-15-2023, 12:41 PM
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Brad Penn is supposed to be a very good oil(for what thatís worth)
I believe it is available in other weights.
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Old 01-15-2023, 12:45 PM
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What's funny is, I have been doing my routine maintenance on all of my stuff and have never heard of this oil and I'm old......er. I may be running this stuff from now on. Will need to research. Thanks 221.
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Old 01-15-2023, 01:05 PM
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you dont need the extra zinc as you have a roller cam. it wont hurt anything but is not really needed. my '96 dually with a 454 calls for 5w-30 from GM but it has had mobile 1 15w-50 in it for 300,000 miles and still holds the same oil pressure as when it was new. most of the things that call for light oils are for factory fuel mileage. what you see for pressure on the dyno does not really matter as the oil and all other things may not be as heat soaked as they will be in the boat running for a long time. basically it is fine with that oil and is holding good pressure but in the boat after a long run you may or may not find you need to go to a heavier oil. the only thing with a heavier oil is to make sure you dont go and run it hard until the oil temp starts to come up to something reasonable.
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Old 01-15-2023, 01:08 PM
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Originally Posted by PQ290Enticer View Post
What's funny is, I have been doing my routine maintenance on all of my stuff and have never heard of this oil and I'm old......er. I may be running this stuff from now on. Will need to research. Thanks 221.
the Brad Penn oils came about when the feds started mandating that the zinc be removed from regular oils. this caused a big problem with flat tappet motors which is a big part of the factories switching to roller cams. Brad Penn is a good quality oil so no problems running it.
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Old 01-15-2023, 01:25 PM
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The fact that it isnít readily available at stores would discourage me from using it. Plenty of good oil out there on the shelf.
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Old 01-15-2023, 01:29 PM
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If you so some searching here, youíll find. Brad Penn positively mentioned. Itís a great oil.

Once running in the boat, Iíd step up to their 10w40 especially if you start seeing higher heat (you shouldnít with your large oil cooler but something to watch). A little extra insurance.
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