One of the great advertisements was the old "You can pay me now, or you can pay me later." campaign for routine maintenance. Most of us follow the pay now system I think. Having just heard of a broken dipstick for the second time I'm posing the question should the dipstick be replaced with a new one to avoid breaking and a far more expensive cost and if so when? That begs the follow up question are there any other items one would usually never think about that should also be replaced and if so what and when?