I am not entirely convinced....

I have always ran a cold stat...160....I do city driving and long hauls.....never have had any problem with sludge or carbon....atleast no more and no less than anyone else...

Everyone drives differently so no 2 results will be the same....

I think it's a good idea to have differences of opinion....Afterall if you base you beliefs on what you read then you are no smarter than the person who wrote it....!

We all have personal experiences that we learn from... what works or does not work for you may or may not work for me either...

But any how Good Debate....!