planedoc
Senior Member
Let me try and make myself a little more clear. I am NOT arguing that 0W-20 oil is not the best choice for these new engines.... it may well be! I haven't seen the data, so cannot speak with certainty on this. I happen to use 0W-20 in my two engines that specify it. BUT,As somebody who is on the other side of the wall, I can tell you that is only partly true. Yes, there are lots of stipulations that have to be met due to regulations and mandated goals. No, they do not drive every decision that is made in regards to longevity of components.
Look at motors from today vs motors 5, 10, and 20 years ago. We have 1.5L 4 cylinder motors producing more power than a C4 Corvette LT1 and over triple the MPG the LT1 made. The new 2.0 turbo motor from GM in Cadillac's is absolutely amazing. This is all due to regulations and companies competing with each other.
You would not believe the amount of computer testing and physical validation that goes into these decisions. If Honda is saying to use 0w20, it's because of tolerances inside the engine, not because Obama says to use 0w20 or you can't sell here.
What I don't accept is the premise that it HAS to be the best JUST because the manufacturer recommends it. They have other factors than the ultimate life expectancy of my engine to consider.
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