orthobird;11335 wrote: you guys got to love these threads, the oil question!!!
well, seems that there is a lot of science behind this, and it being an organic compound, sure does make things more interesting.
i know you all have heard DA recommends use redline 40 to 1 from the beginning. but, then, others say, break in with a mineral oil, after ints get seated, then switch over the synthetic. just within past 2 weeks, i read somewhere that if you use mineral based oils, there is a significant amount to caking that occurs inside the cylinders, piston tops, con rod, con rod pin area, etc....
then someone posted pictures of pistons/cylinders that were run on red line from day 1, yes, now i know who, it was RICHO from DA Australia. he showed another engine that had an oil from France, he would not give out the brand name. You can search and find this on you tube. anyways, the piston with the "other oil", wow, looked like caked on cow chips.
well, now, i learned something even stranger, i never expected to hear this......
turns out, the mineral oil helps rings bed in sooner, however, you get all the "cake".
but, then there are engines that are "converts" to redline oil, as you have all pointed out, and then these have been dissected (LOL).
they have discovered that the engines with red line oil looked cleaner after they had been run on mineral oil then switched to redline, but....
they found damage to the rings. apparently, the red line oil helps to "remove" the "cake" on stuff everywhere, but then this acts like 3rd body wear particles.
and thus, now i understand why DA says: Use redline from day 1.
ok, what do you all think about that?
kind of a paradigm shift!!!!