Well,my toy has the same diesel knocking noise tough.
I don't know if that will be a problem in the near future,but i'll be taking steps towards that issue.
Next weekend i'll have my mech check the whole truck to find any hidding or potencial problems.
My odor reading is 40.800 as i write this replay & since i purchase the VX i have add 2,789 miles. Most of them to back & forth to the dealer
Thankfully my job site is only six miles away so adding excesive miles isn't an issue for me.
I'll have the engine flushed out I add syntetic mobil 1 oil as how many of you guys are recommended.
Take care guys !