Great thread, one that I will need to reread a few times. Experience is speaking here. I'm not sure consensus was had, though I do believe the usage of a 0W-40 oil in this engine would make me sleep better.
Hardening and or general metallurgy does appear to be an issue; perhaps it's an industry-wide quality issue?
Come to think of it, what were the thoughts or reasons behind the applicable MS oil spec(s) surrounding the 6.4L HD truck and possibly the SRT engines? The spec I'm speaking of calls for rated 0W-40 oil. Was it MOFT, besides others? Thanks.
Hardening and or general metallurgy does appear to be an issue; perhaps it's an industry-wide quality issue?
Come to think of it, what were the thoughts or reasons behind the applicable MS oil spec(s) surrounding the 6.4L HD truck and possibly the SRT engines? The spec I'm speaking of calls for rated 0W-40 oil. Was it MOFT, besides others? Thanks.
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