Re: small 400V pnp sot-23 transistor, xxxTA94, etc.

Hello Frank,


But the main difference when I do it myself is the much longer time the oil stays clear. The worst "professional" oil change I saw in Europe. They pushed some kind of thin slurp hose down where the stick is, hit the button on an oil vac and ran it for a minute or so. Nobody got under the car. In with the new oil, done. Even though the filter was changed the oil turned dark after a few hundred miles.

Seen that once too, not at a garage, but at gas station. I wonder if
the engine knows the difference between a 95% oil change and a 100% oil
change ;)


Don't know but an aircraft engineer once told me that it does. It's not just that old oil is worn but there is also minute metallic residue from engine wear in it. This is also why it's a good idea (and usually recommended) to put in a new oil filter at every change. I always do.

In the aircraft biz they actually send in the occasional sample, just like it's done at the doctor's office for the cholesterol test. In both cases it can help prevent a potentially fatal event.

--
Regards, Joerg

http://www.analogconsultants.com
.