"I am absolutely convinced that xW20 oils can provide excellent protection of motor designed for it AND motors designed with other viscosities in mind."
The evidence is overwhelming, and I don't think that many would disagree.
"I agree with 427z06 that thin oils can be great and that higher viscosity oils may not be as good a choice in the real world where "real world" refers to most drivers and most applications."
Now you've moved from statements about a specific paramater, such as 'protection' mentioned above which I think that most would interpret as wear, to a big pile of assumptions about what a good choice is. We can go and on about a good choice is, what the real world is, and what most applications consist of. You need to be more specific here. For me a good choice is maximum engine life, as one additional year in vehicle life is a lot of money these days, considering the cost of vehicles. This is a poor choice for a lot of people as looking at many around me I see a lot of purchases for some sort of 'fashion / lifestyle' statement, their vehicle is 'who they are', so they certainly don't want to have to live with a beater for what could be a long time. A lot more people are concerned with fuel mileage, some are concerned with maximum power output, and these tend to be at odds with the thicker oils typically used where maximum engine life is a concern.
"I have become curious if xW20 technology can be applied to other viscosities to make them even better at protection of wear. "
The primary driver for 5w20 oils, increased fuel economy, seems to have generated almost a kind of golden age of research in lubricants, as there is interest in better fuel economy, lower emmisisons, better wear performance, higher output, etc., in all engines. Lubricants these days provide a lot better performance than many of a decade ago, and we'll continue to improvements. To their credit Ford seems to be a driver in this area, as they seem to be using 5w20 oils in Europe now, and have already most of their vehicles in the US using this oil.
"It may be asking alot, but I think that I could benefit from 427z06 and 1sttruck clarifying a few things. I have become confused. Your banter could be useful to me if I actually understood the difference of oppinion as oppose to the critique of style. Can either of you explain to me where you think you agree with other? Additionally, can you list the SINGLE issue were you think that you disagree the most on the thick/thin issue."
There are two issues here, one of continued ad hominum attacks, the other about what results in 'maximum engine life'. I've tried to refrain from too many personal attacks as based on what I've seen so far I think that 427z06 has some sort of affliction that he has no control over, and it would not be right on my part to to get too nasty. He has made too many serious errors in basic comprehension and reasoning to just be considered as being 'sloppy'. That's all that I'll say about that. Regarding what will produce maximum engine life, well, join in the discussion.
