oh no another multigrade oil topic!

Posted by karl f on May 06, 2003 at 10:32:23 from (65.237.15.141):

the reluctance, confusion, emotion, etc. involved with engine oil selection is amazing. you'd think lube would be simple. everything else is...
anyway i heard something from my uncle that would contribute to the reluctance and fear to use multigrade:
sometime around the early to mid 80s neighbors who bought new JD with factory fill 15w-40 (or maybe 10w-30?) were losing their engines in relatively short time. repeatedly! when it occurs that frequently with the locals it makes people second guess a make and the related products involved. unfortunately i dont know any more details.
is anyone aware of this problem, its cause, and JD's solution ?
this is central MN so tropical heat wasn't the cause.
no one who bought a new ford or ih during that time had any problems (at least that the neighbors knew of).
piecing together history
-karl

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