Here's one for you.
With an old car that you love, you can be OCD and anal-retentive. For some ten years, I hadn't bothered or worried over the oil spots in the garage. I didn't bother checking whether they were Dexron or 10W-30 spots. Over the last year, I've cleaned up the garage and became OCD over my Trooper.
The 10W-30 leaks -- minor little spots -- were not coming from the rear main-seal, but from the valve cover gaskets. I NEVER have to top up the oil in the crankcase.
The Dexron leaks were coming from the center transmission seal opposite the engine and its main-seal. Watching carefully, I found that I needed to top up the Dexron with 4 ounces every few months -- with a 9 quart capacity. But I got tired of checking the drop pans I'd put on the garage floor.
I at first thought the leaks were coming from the forward "adapter" oil pan of the tranny, concluded that a gasket replacement would be a cheap fix, and took it to my repair shop. Eddie had been trying to sell me a valve-cover-gasket replacement for the last six months, and I refused the recommendation. This time, I succumbed to the recommendation.
Removing the intake manifold, the mechanic f***ed up, broke the input port of my heater core, and they had to replace the heater core under warranty. They kept the car 13 days while waiting for a salvage-yard heater-core replacement, until I finally told them to swallow their warranty losses and get me a new one for $460.
Everybody learned something from this. Eddie had been too insistent that I should have the valve-cover gaskets replaced this year, but next year -- an additional 3,000 miles -- or the following year (6,000 miles) would've been fine. The mechanic learned to take greater care with an old car and pay attention to hose fittings that cannot be restored after the intake manifold is bolted back in place.
And I learned this. Old cars leak oil. 4 ounces of Dexron every several months is a mist-particle in a raindrop.
At least now, after properly re-torqueing the Transmission attachment bolts, there are no . . . damn . . . leaks. But --- 13 days? $600 dollars? I'm just so g**d**n happy I don't have any leaks now. It just tickles my willie. What a waste of time and money . . .
OLD CARS WILL LEAK! DROP PANS MAKE LEAKS LOOK WORSE THAN THEY ARE! REIN IN YOUR OCD IMPULSES AND GET A LIFE!