You are kinda like your friends, you don't read the sentences of just ignore the content. You forget why these people "sometimes" recommend 50wt. Not all marine manufactures spec it. You are running your mouth but you have diesel oil in your crank case if you want to spew at the mouth about what's "recommended" in the industry. Not saying it doesn't work, however Mercury, not even amsoil would sign off on that in writing. There are many reasons why.

I've already given explanation of why 40wt will work. Do some more research and you will see my conclusion is correct.

Problem solved, blood pressure reduced.

Posting pics of women that you can never or will NEVER get... Making idiotic posts.. Yeah that sums you up quite well Id say. Riding on the coat tails of your intelligent friends.. Truth hurts bud. You can call it condescending all you want.

Am I in the right thread? Is this the cafe teaser thread? Anyways, Borgie, any thoughts on Joe Gibbs oil?

Lol. It's a great product. I've used their break in oil and their line of mPao synthetics are some of the best money can buy. Pricey, but very robust oils. Unlike quite a few oils discussed here their synthetics have very low NOACK volatility, and a very high viscosity index of around 200. Quite a few traditional synthetics along with a few grades of redline are only in the 160 range. So with this formulation they really designed a well rounded oil.

http://www.drivenracingoil.com/news/...ll-synthetics/

Borgie please do not take this wrong and just pointing out that you discredited Driven from MY post back awhile ago as I use it for my boats and for my higher end customers. I use Driven and some still want VR1 Valvoline or Amsoil in which I carry, sell & use all 3.

And to add to the list, I use Mystik in the black OEM stock apps unless the boat owner wants Merc or Volvo or VR1 or Amsoil per their preference as I carry & sell all plus the OEM oils as well.

When did I say anything negative about them? Please refresh my memory here. I'm not taking it anyway. I find it unusual as they make a very robust product.

I will try to find the post that I replied in. No biggie but you are now asking. I am not up here to take sides with anyone so no jabbing on my end to anyone.

wow,i just came in from the shop and tuned in to oso.this thread,like most all the oil threads turned into a train wreck.jeez,just run the oil that works for you.i sometimes let things bother me that should not,this thread is not one of them!mild thunder,borgie,sb,icdedppl,let it go fellas.mild,don,t let this chit stop you from giving advice,your experiance and knowledge is appreciated by many members,im not going to change my thinking about what oil to use because someone who knows all about oil sais im wrong,i will continue to rely on my and others experiances on what works.in closing i will add that thanks to bup i will be runnling the mystic 15w50 in my fountain.

I'm not taking sides, I'm not a triboligist, and I'm trying to learn.
With that being said, I've been under the impression that if a HDEO/HDDO has an SG/SJ/SM (spark) and
CJ-4/ CF (compression), that meant it met all those listed specs, and when a manufacturer puts on the label that the oil meets those specs, they are kind of "signing off" on using the oil in any of the engines requiring any of those specs. Am I missing something?