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I think the trick to the whole thing is to not tighten it up to much when your putting it in. All this plastic crap on new vehicles is pretty unforgiving about over torquing.
I think the trick to the whole thing is to not tighten it up to much when your putting it in. All this plastic crap on new vehicles is pretty unforgiving about over torquing.
Agreed. It seals by o-ring so it does not have to be tight. I suspect that it gets over torqued and some stress risers form at the thread root, just like what happened to the '03 oil rail fitting down in 'Orleans. With the initial dry high torque force when backing off the drain plug all in the OD hex area, pop it goes.
Having worked with a good number of auto engineers over the years and considering the plug has both the big outer hex and the inner Allen hex, the idea was it would be run up by hand using the hex, and torqued off by Allen. It could have been just knurled to promote that thought, but a hex is cheaper to mould. Or I'm totally wrong and this was the design by the new guy just out of school.
