So why dont we sum it up. Mercury, driven racing, amsoil, mobil, various professional marine engine builders and race teams thousands of oso members, and hundreds of marina service departments have been wrong, by using such an antiquated molasses like oil such as a 50 grade.

Who knew all they had to do was ask borgie and everyone would be running 10w40 redline. Well, if they wanted to do it right that is.

Tonight I am going to compose an email stating my bearing clearances, operation parameters, temperature parameters, rpm range, and fire off some emails to amsoil, redline, mobil 1, valvoline, brad penn, and joe gibbs. I"ll post the replies i get back from them, although it will probably be argued that they dont know everything .

So a recommendation without validation (just running an oil without issue isn't validation) is the last word as far as you are concerned regarding oil viscosity? Thousands? Did you take a poll I'm unaware of? Even so, thousands are running too thick of an oil in many cases. You seem to forget that your engine isn't representative of the "majority" and as you put it "thousands" of boaters and builders that run a 50wt oil. Have any of these companies validated an engine such as yours like they might with a more mild N/A build? Doubt it. In many cases they recommend a one size fits all, in case the end user is neglectful of maintenance etc etc... But that never entered into mercury mind as they are such innovators. The funny thing is that they "use" to be... After their lies about the gear oil being a synthetic and how poor of an oil that turned out to be, they would be the last people to get oil advice from IMO.

Yes, by all means email these companies. Submit the information on your big blown BBC which few people, definitely not the majority of boaters run. And when they say 50wt you can pat yourself on the shoulder. Still doesn't account for the mainstream Performace engines that outnumber the blown engines like what you are running 10 to 1! Interesting information,however hardly a nail in the coffin to what I propose. And just to be clear I never said that you must run redline or any other oil. Just that a 40wt multi viscosity oil is a very good fit in a high output BBC. That being said Ester oils like redline and Motul happen to be shear resistant, unlike mobil 1, and countless other synthetics on the market. Many companies know their oil shears or will be abused with infrequent changes or fuel dilution. What's the safe bet in some of those cases, recommend a 50wt, when often it's not needed. In some cases, sure, however for the maority there is a more scientific approach.

Why do you think UOA's are so crucial for serious racers and even hobbyists? Because without them, you are only guessing and trusting what a oil company is telling you it "should be" doing inside your engine.

For those that don't just take a manufacturers/oil companies word for it, this is the man to consult. If not you are merely guessing and trusting what "should" work.

http://youtu.be/NDE9A9siNeQ

Borgie - do you send an oil filter sample also ?

I have a confession to make.
I once used 4qts. of brad penn 10w-30 and 3qts. of brad penn 20w-50 mixed as a "cocktail" in my stroke small block ford drag racing engine.



Oh, the horror!

A few pages back, someone said there is no magic oil, and to that I reply- balderdash!
I use magic oil. I never have to change it, and it magically disappears. Also, I think it's made at U of M, because it's blue (oil), maize (jug), and never lasts more than part of a season.

For everything else, there's Mobil 1 or Rotella.

The oldest boat I've been doing mainentance on since new is a 1984. Original motor. Tied up to a dock from May to end of October. Get's used few times a week and few times each week-end. For the most part. Has been ski'd and tubed behind for 2 generations of kids now. Long trips, short trips. Been overheated a few times.
Been out of the air a ton of times. Stuffed atleast a dozen times. Drank on. Boinked on. Overloaded. You get the point - a well used 30 yr old boat.

I'm starting to get nervous about the oil I've been using for it's oil changes.

Maybe, I've been using the wrong kind and I've been negeclting it since I have not done MOA's and adjusting to a different type / viscosity.

Wholly crap.

30 yrs old. 2014-1984 = 30yrs.

I hope the owners don't find out that it may not be the best conceivable oil out there and that I've been shortening it's life dramatically because of this.

From your response its apparent you aren't able to think outside the box on this toipic, and that's fine with me. Reiterating "nobody said it absolutely wouldn't work or it would shorten engine life" obviously is going in one ear and out the other..And then you realize lubricants aren't your strong subject so you make elementary jokes. So SAD....

For the most part I've come to expect a lack of understanding on OSO from several members here who think builders are tribologists.. Blenders and major is sciences. OSO is the source of so many oil myths. I recall one major builder who's tied to a major boutique oil company, stated "synthetic motor oil makes roller lifters slide on the lobes". This is just one of many from a significant builder. I realize everyone makes mistakes, however it's funny as synthetic is pretty much all they recommend now...

Nope.

I started to spill some guts about a few yr deal I spent on on some performance issues I saw with many engines and how I found oil was contributing to it.

You kept being a dikhead and attacking me......+ stayin on the lubrication end of it, which I wasn't.

No answer to your experiences and hands on research. Everyone has to prove themselves to you. You don't have to do the same.

So......the last few posts were more entertaining (fun) then what's being put on the table so I'm joining with that.

It's the internet...remember that..as I'm doing now...I have other real life things to worry about / focus on than some overheated religious cult type oil person that always seems to go 'Kujo' on any oil related thread.

I know, you think you are the nice guy and wonder why everyone else is such an azzhole.

So be it. We've had these talks before.

You won't back down.

It will be best for the both of us if we ignore each other. I will try harder with this and hopefully it benefits both of us.

You offered zero evidence or data for the record, so keep the lies coming... You mentioned working in several venues of Motorsport. So?! Where's all the data from that, and how does it pertain at all to this thread?

Regarding you a your few friends thinking I'm an "azz hole" your classy word, not mine, I really could care less pal. I don't come on here trying to impress others. Sometimes my opinion is popular and somtimes it's not. My ego is in check and I stand by my knowledge base and experiences.

Keep creating smoke screens because you have zero educated rebuttal to offer anyone here with regards to the topic at hand, other than absurd mumbling about an old boat, back when you were relevant in Motorsport, and 3rd grade jokes.