The engine DID run too hot... again... because of changes made to meet emissions. But in normal use, it shouldn't have been a problem. It's a combination of the heat, long service intervals and missed intervals that made it an issue.
I know several people who've had varnish and sludge issues with the ZZ engines.
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Of course, they should have honored warranties for those who followed their recommended intervals. There's no argument there.
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Try again.
My girlfriend is a Mazda. I don't see how that's relevant to the discussion at hand, either.
Toyota must be pretty pissed at me, at this point, as I've put them in last place in the last three comparo tests I've written for the magazine.