Yup, there are. Suppositions. Questions.
Same things seem to be going on here, and here, and here.
https://www.google.com/search?q=lack+of+ZDDP+killing+engines&ie=utf-8&oe=utf-...=====================
Let's talk about those high mileage bikes, most of which are the early Savage models.Think about it a bit, over 3/4 of their years and miles were on the old high ZDDP oils because THAT'S ALL THERE WAS BACK THEN. New bikes bought new in the last few years are having the very early issues with the ticky tappy syndrome. I wonder why that could be.
Is this fear mongering? Ah, you admit there is something to be afraid of, potentially then.
All oil formulators
back when they were unregulated put in 1,400 to 1,600 ppm of ZDDP. Racing oil formulators still put in 1,600 to 1,850 ppm of ZDDP. Up until 3 months ago Mobil 1 put in 1,350 ppm of ZDDP into their bike oils. Web Cam insists that you use a high 1,800 ppm ZDDP oil for break in if you want any warranty period on your Lancer cam. All these formulators had a reason to do this, you know.
Now the rules have apparently changed again and all bike oils are coming in with much lower ZDDP (800 to 1,100 ppm)So, you have read and are not convinced because you think you are being sold something. Natural enough reaction for a guy type, I do believe.
hmmmmm .....
Last time I got accused of "paranoia mongering" it was over the stock vac petcock which I was saying was a root issue with many of the "CARBURETOR ISSUES" people were chasing endlessly at the time.
How did that one turn out?