With regard to ZDDP issues, the API SM/ILSAC GF-4 engine oil category calls for reduced Zinc and Phosphorus levels to allow extended catalyst life in current model vehicles. & everybody knows catalysts are much more important than engines.

Quote:



Single sump contests ...  Truckers

 
I agree it's pushing a dino based oil way more than I'd care to do  (I'd use Rot Syn) but you have to understand a few truckerish things that make it possible.  

First, big 18 wheelers get a lot of miles put on them in a month.  100,000 miles isn't a lot of months for an open road truck driven continuously by a two man team.

rough truck math 100,000 miles / 65 mph = 1,539 road hours = 65 double teamed road days

Second, oil and air filtration on a big rig involves both primary and secondary filtration systems that remove junk down to the sub-micron level.   Big rigs also commonly use secondary bypass oil filtration systems that continuously microfine filter the entire sump over a period of hours.   And to a trucker, the oil itself is considered good until shear numbers or silica build up numbers or antifreeze contaminants say you have to change it out.

Third, most big truck stops can do a short form oil analysis on your sump load of oil while you are showering and eating.   Truckers don't fly blind on the oil in their bread and butter machine.   At 15 gallons per oil change, they change it when it needs it (by analysis).  

Truckers also don't risk a $10,000 engine (rebuilt cost) unnecessarily.  

Lastly, when truckers do oil mileage pissing contests, the numbers are much much higher and they tend to play those games with the premium synthetics.

 

 
Bill, you gotta try harder than that ....  

Rotella doesn't have to make claims for their oil      (everybody else does it for them)


http://www.google.com/cse?cx=002683415331144861350%3Atsq8didf9x0&q=rotella+fl...

 


http://www.google.com/cse?cx=002683415331144861350%3Atsq8didf9x0&q=rotella+fl...

Bill, this is the exact same search that got the 1,580 hits with Rotella, except I substituted Klotz for Rotella --- yielding only 35 hits total with 2 hits that actually talk about Klotz and tappets, with one of those being from Klotz own web pages.

Not many folks are buying your red koolaid and talking about it and flat tappets on the web, apparently.


..... and when you actually read the stuff inside the 35 hits, Klotz gets mentioned and Rotella gets recommended.  Sad, ain't it?

Dear Bill,

I know it hurts your feelings, but the Japanese Standards Organization (of which Suzuki Motor Co., Ltd is a proud member) clearly recommends Rotella diesel oils for use in their motorcycle engines.

It sez so right on the JASO MA MA2 rating label.

Oldfeller--FSO wrote on 02/29/12 at 07:29:50:

Retread,  Bill likes you.  You got your mortar working correctly and got one off and he has done run out of mortar rounds long long ago.   Bill makes no real points any more and cannot seem to find any real information, so his +1 means a lot when it shows up under your post -- he's rooting fer ya.   Keep it up !!!

Bill, Suzuki recommends Suzuki oil (duh!)

Retread, 10,000 miles / 65mph / 24 hrs = 6.4 open road days.  

I doubt many people ever played the oil change game out to 100,000 miles with a dino oil very often (it was a braggin' rights stunt and was likely very carefully done) but I also doubt that truckers go around changing out their oil every week, even back in the day when you were driving.

And I did say (rebuilt) as in cost to do a good cylinder, pistons, mains, rods and upper end job, not like buying a new motor which most truckers don't do since they generally keep a fresh rebuilt motor around.


Keep on shooting guys, eventually you will get around to your Castrol GTX oil to say something good it does in a Savage engine.

Wow. I almost.feel bad for asking.