Because ZDDP was used in oil prior to cats being used on cars. Lubrication engineers put it in there to keep metal parts that rub under hard loads from galling on each other. Its added to the drive hub oil on Guzzis & is called for by the book in many of them. Diesels use it, because it is a good thing to have,, you keep your knots & spend you $$$ as you please. Ill use Rotella..

bill67 wrote on 10/30/11 at 18:38:25:

If Sususki has scared you into using Motorcycle oil, which MC oil do you suppose most people would buy. Right on,   Suzuski oil !
And suzuski doesn't make oil, but they make a ton of money off the suzuski oil that is nothing more than glorified car/diesel oil.

 
Bill, just so you will know (once again, no less) ZDDP is the extreme pressure additive that the Society for Automotive Engineers still rates as the very best most effective additive to keep metal to metal galling away in extreme conditions when engine oil films start to fail.

Like on our flat rocker tappet followers ....

The fact it kills car catalytic converters is a shame, because they haven't found anything to replace it yet that is nearly as effective.

(our Savages don't have catalytic converters, so it is fine for us)

Car oil companies have tried, but some of the things that do work (moly for example) will kill your wet clutch on your bike.   Mobil 1 has moly in it now, BTW.

So, car oils are a crapshoot right now, especially since they won't tell you exactly what's in it this month (Mobil 1 got slammed hard for that, unexpected formulation changes with no prior warning to the customer base).

Rotella is watched like a hawk for not changing their formulation by a whole lot of truckers, drag racers, Gold Wing motorcyclists, etc. etc.   They keep telling Shell LEAVE IT THE HECK ALONE and Shell by and large does just that.

The fact that this one oil type (built for big diesels but meets all our needs exactly) is precisely what a Savage requires is just good luck on our part.  

Plus the fact you can buy it at Walmart dirt cheap in them big 'ol gallon jugs ....

You have no idea what is inside your red Klotz koolade, but you don't put enough miles on your bike in a year to justify changing the oil so it really doesn't matter much to you.  

You can't even say if you even have ZDDP or any other named additive in your Klotz because Klotz is all "top secret" and won't tell you anything about it except it is magical and it is just about the most expensive oil you can buy (not locally, you got to mail order it).

Bill, expensive does not always mean best -- but as always you will do what you want to do with your money.


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Now for the icing on the cake, Rotella oils are JASO motorcycle rated as bike oils, right there on the label.  Klutz got that on their label?  

Noooooooo ....  they don't, do they?   They'd have to expose what's in it and they won't do that.      
red #4 food coloring isn't recognized as a proper oil additive by the Society for Automotive Engineers


   



Rotella is arguably the best bike oil you can buy anywhere, it is not expensive, and it is readily available at Walmarts everywhere.

OF  I don't want you crying in your beer,But Klotz does have JASO-MA on their label.IT must be for a motorcycle and It has been for over 50 years.

OF  Bob your oil buddy has a breakdown on KLOTZ oil how did you miss it.And it was from 2009 and they have improved it, and Rod oil has less of your zppd in it than it did 2 years ago.

OF       You are one of those guys who lonely hear what you want to here.

I wanted to say that my motor seems to be significantly quieter but I wondered if it was just in my head.