I think it's safe to say both sides of ZDDP usage has been presented. I like the article in the link. Those of us who believe one way or the other probably will not be persuaded. I suspected marketing was behind the push for ZDDP, and maybe his explanation of inferior materials suggest the co-incidence of engine failure and reduced ZDDP levels. His article does share my view for extra ZDDP during engine break-in.
That Harley is from the AMF Harley years. I myself bought a Honda 750 in 1975. Six back surgeries and age 64 have quelled my desire to buy that old classic. Funny, I won't buy a Japanese car, but the MCs were reliable and affordable.
That Harley is from the AMF Harley years. I myself bought a Honda 750 in 1975. Six back surgeries and age 64 have quelled my desire to buy that old classic. Funny, I won't buy a Japanese car, but the MCs were reliable and affordable.
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