I can't remember where I saw the article, so cannot reference it. It claimed that 1200 ppm of ZDDP was an adequate level, and that there was little or no benefit in going for higher levels. If that be true, the advertised levels of 1400 ppm in Klotz (as claimed by Bill) is of no more benefit than the 1200 ppm in the much less expensive Shell Rotella synthetic. Perhaps someone with better knowledge of lubrication systems can clarify it.

the walmarts near me have auto sections but its limited to super tech and castrol oil oh and some penzoil. but nothing MA rated for motorcylces.  i usualy go to advanced auto! ill have to ask them about the diesel oil. The valvaline that I have was designed for wet clutches but I didnt notice if it was MA rated or the level of ZDDP. ill have to check when i get home.

Thanks for looking out O.F  ;

 
Charon, I too have read that ZDDP past 1200 PPM is surplus, that it only gets used when the existing ZDDP plating gets scrubbed off repeatedly and the excess has an opportunity to be used up (generally it gets used up over time).

Our bikes get the oil changed FAR more frequently (short replacement intervals) than to ever begin to get into the "over 1200 ZDDP reserves".

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Take that same logic and turn it around on its head --- my new 2011 car requires me to change the SN spec'd (600 ppm ZDDP) oil every 3,750 miles instead of the old 7,500 mile change frequency.   Why?   Because if you don't change it early you might run through the weak SN grade additive package levels spec'd by our government CAFE standards and cause Nissan some engine warranty costs.

Some of the car mgfs are upset with SN oil standard as it is hurting them in their repair warranty costs.    They have to use a thinner oil to get better CAFE mpg ratings, but the lack of enough additive package to support this thin oil use in SN grade is simply a no-win situation for everybody.

Honda and others are now putting in "oil additive sensors" (they call them oil life sensors) that tell you to replace your thin weak-arsed SN oil whenever the additive package starts to get tired.

Once again, tacit admission that the CAFE based oil standard SN isn't completely up to the job of taking care of a MODERN roller tappet style engine.  

What does this say about antique flat tappet engines like our Savage if SN oil isn't working out all that well in brand new engine designs?

You can get it for $10 a quart.

I be thinkin' it's Global Warming...

All his heat in places it's never been before...
Ticky,... ticky,... ticky,...  they always tick more in the heat...

Tucson is going to be 10 degrees cooler than the grain belt, today...
We also have double our usual monsoon rains...
We might become tropical... ...
I'm tickin' less,... but I'm poppin' more... it's the humdiddity... ...

And I aint buying nothing called KLOTZ. Sounds like a ladies hygene product.
Cool.
Srinath.

So I just got back from the auto store and they did have shell rotella but they had 3 diff. types ones was rotella T1, the other was rotella synthetic, and the third was rotella triple protection! I couldnt find anything about ZDDP on the containers though?    nor any meets "MA" requirement symbols? do they only go into that kind of detail on thier website?




and O.F    thanks for that image hahahahaha  

Get the 5 gallons you will need it so you don't run out for the rest of the summer.