Here's a response back from Mack Boring in particular Larry Berlin, Service Trainer, when I specifically asked about Lucas additives in Yanmar engines.As someone with over 25 years of experience in maintaining and repairing diesel engines I recommended the use of Power Service and Lucas Oil Additives, this is because I know a whole lot more about diesel engines than most of you will ever know. These are not "secret sauces" they are tested and proven commercial additives used by companies like J.B. Hunt, Schneider, Swift, Werner, Halliburton, KBR, Nabors, and hundreds of other large companies because it works. Now if you want to listen to someone who is not a diesel mechanic, has zero diesel engines in his shop to be rebuilt, and thinks that most marine diesels do not have glow plugs because he has seen one or two without them, go ahead.
I hate giving advice on here because there will always be some ding a ling who thinks he knows more than someone with literally thousand of hours of training and experience who will come along and tell everyone how the expert and highly trained professional is wrong. I wander if a doctor were telling you that you should take a certain medicine if you wanted to live longer, would you go to a palm reader and take their advice instead? Would you prefer the advice of someone who earns a six figure income because he knows diesel systems, or the advice of a person who sells doughnuts or something for a living?
There you go again. Do you just enjoy insulting people, or just tooting your horn to make yourself feel good, or trying to convince yourself you know something? You didn't need to add the "this is because... ", maybe you do, and maybe its applicable, maybe not, but what do you gain by insulting everyone else. Your not the only one that's ever learned things in their lives.mark2gmtrans said "As someone with over 25 years of experience in maintaining and repairing diesel engines I recommended the use of Power Service and Lucas Oil Additives, this is because I know a whole lot more about diesel engines than most of you will ever know.
I am sure Larry has taught a lot of classes, and he knows a lot about engines. I am kind of wondering what he knows about oils though. I was gone for a few days, but others already beat me to it, the type of oil he is listing is not available. You can find oil that exceeds the standard, but oil has changed a lot over the years and like I said before, I recommend Lucas Larry is more than welcome to recommend oil that is obsolete, impossible to find, and not produced today. I just buy Rotella for diesels and add Lucas to help keep the oil where I want it, you can do what you want to do with your engines.Here's a response back from Mack Boring in particular Larry Berlin, Service Trainer, when I specifically asked about Lucas additives in Yanmar engines.
I remember he saying from taking one of his classes that additives are not recommended but to make sure there had been no change in their policy I went ahead and asked for clarification on the product mentioned
Hello Mr. Owen,
Yanmar does not recommend any oil additives.
They recommend you use a high grade 30W or 15W40 viscosity oil that meets
or exceeds API specs of CF4 or higher. Mack Boring follows these recommendations.
Oils meeting these specifications are readily available. Follow the oil change intervals
as given in the operators manual or once a season whichever comes first.
Have a great boating season.
Larry L. Berlin
A Division of Mack Boring & Parts Co.
Phone 908-964-0700 ext 298
..Just an FYI..Larry Berlin has probably taught more mechanics as well military personnel in the subject of diesels than most..so I have a great respect for his wisdom...
Oh?..and what "corporation" do I work for...or..are you just trolling?Mr. Owen works for a corporation, and there's a high probability that corporate counsel, or someone in the corporation, has decided to Cover Thine Ass in this litigious society by recommending what the manufacturer recommended in their original and normally unrevised manual. So if his recommendation is for a product that's been obsolete for a decade and is no longer the best choice for engineering purposes, he probably knows that. And for liability, rather than engineering, reasons, that's the story he'll stick to.
That's sadly normal corporate "technical" support these days, has been for a long time.
Cover Thine Ass.
I would think that a company in business for a very long time, with a solid reputation for standing behind their product, ( if you use Lucas or Power Service anti gel treatment in a semi and it gels they pay the tow bill), and a proven benefit to the engine would not be the cause of some mystery damage. Like I said before, some things you add because they work, they give the benefit they claim to give, I like sweet tea, I add an additive purported to sweeten things, it works just like it is supposed with no surprise after taste, it is called sugar. When I want to reduce the bacteria in my fuel tank I add Power Service Diesel Kleen, when I want good adhesion to surfaces from my oil at all temperatures I add Lucas. These things I add because they do as they are advertised to do by the manufacturer. CYA guy from Mack Boring has to say things that way because he is paid to say what he is told, but if you contact Cummins, Mack, Caterpillar, Detroit, or any other engine manufacturer and ask them specifically about using Power Service or Lucas they will not tell you that those things are bad for the engine.Fair enough comment - consumer protection is alive and well, in the USA at least.
But, playing devil's advocate: Suppose some-one wishing to 'feel good' put an additive in during the early life of the engine. It does not run-in the way it should - for whatever reason. The engine is serviceable, but oil consumption is excessive. The manufacturer makes no guarantees about maximum oil consumption - we have just come expect it to be almost minimal in today's engines.
I don't think anyone could be held to blame for that except the owner.
Would you really trust a manufacturer's representative who was six years behind the curve on his knowledge of lubricants? Not so much.API: CF-4 Diesel Oil Now Obsolete
By Lisa Tocci
WASHINGTON, D.C. – API CF-4, a heavy-duty diesel engine oil category
that debuted 17 years ago and continues to hold a sliver of the market,
was declared obsolete yesterday by the American Petroleum Institute's
Lubricants Committee at its semi-annual standards meeting here.
Beginning immediately, no new licenses for the category will be accepted or
The demise of CF-4 was pretty much a given, since one key engine test for
the category – the 600-hour Mack T-6 test that measures piston and ring
wear, viscosity change and oil consumption – is no longer available. API
had asked ASTM, which defines the test, whether the newer Mack T-12 test
might be an acceptable substitute, but ASTM's Heavy Duty Engine Oil
Classification Panel came back with a firm negative. There's no data to
support a correlation between the two tests (they use different engines and
measure different performance parameters), so this option is not open, the
The Engine Manufacturers Association, which represents the interests of
diesel engine builders, has already agreed that without the test to support
it, API CF-4 licensing needs to be discontinued, Kevin Ferrick of API told the
meeting. The engine builders also requested that API encourage its
licensees to upgrade their products to at least CH-4, the performance
standard that was introduced in December 1998 and is fully backward
compatible with the expiring category.
Larry Berlin of Mack Boring response...Would you really trust a manufacturer's representative who was six years behind the curve on his knowledge of lubricants? Not so much.
Wowee...just like I have a LOT more than most people do, but I give my opinion based on my experience. I get a lot people who seem to think that my being in Texas or my being a full time oilfield mechanic working on both old and new engines somehow translates to my not knowing my stuff well enough to work on a 1975 model engine. Fine, I have too much work as it is, and have had since I was a kid, take your engine to someone else, get your free advice from someone else or not, it makes me know difference at all.
I have my own engines to work on too, and I am trying to get time to do them, but it seems that other people's engines keep getting in my shop and I do not have the time or the room to do any more than I am right now.
My brother told me once not too long ago that the reason he never gives out free advice and consultation is that the people asking are just going to argue, and not do what you advised them to do anyway, so why waste the time? He is certified with Cummins, Mack, Caterpillar, Detroit, Perkins, and a couple of others as well as Allison, Eaton, and some of the others, and together we have done a few mechanic jobs over the years, but no one wants to listen to the things people getting paid to do the work have to say. Instead they go around until they can find someone who agrees with them.