Corvette oil change

"Charles Spitzer" > wrote
in message ...
>
> "'Key" > wrote in message
> ...
>>
>>
>> --
>> "Key"
>>
>> "Dad" > wrote in message
>> ...
>>>
>>> "PJ" > wrote in message
>>> ...
>>>> Yeah, hot but easy commute this morning--not too much
>>>> traffic. Many civil servants are taking the week
>>>> off--4 days charged for 9 continuous days off. Just us
>>>> taxpayers out there on the concrete! No OAT in the C4
>>>> but had to turn the A/C on to MAX for a bunch of miles.
>>>> Spent 8 years doing ship surveyor work and watched a
>>>> lot lube oil management in marine and fixed base
>>>> machinery applications. Have been around aviation oil
>>>> analysis programs for years as well. Shipboard and
>>>> fixed based scheme is to not worry about testing for
>>>> water that will be eliminated by purifying the lube
>>>> oil. Tests are done for metals found in bearings,
>>>> pumps, cylinder walls and plating. For water, just run
>>>> circulate it through a heater and DeLaval lube oil
>>>> purifier and back to the tank for several hours before
>>>> rolling the machinery (turbines, diesels, reduction
>>>> gear etc.) Some aviation pre-oilers have a two stage
>>>> filter --particulate filter plus a coalescer to remove
>>>> water.
>>>>
>>>> I think the Corvette storage problem is tough to
>>>> generalize from car to car or location to location.
>>>> Base oil (parafin, asphaltic etc.) will make a
>>>> difference in hygroscopic qualities (check Wikipedia if
>>>> 10th grade chemistry is just early history.) Anti-foam
>>>> and detergent additives will further screw up
>>>> comparisons from one stored car to the next.
>>>>
>>>> Just for chuckles, I did a Google for "hygroscopic and
>>>> Mobile One." Was surprised to find that synthetics were
>>>> much more hygroscopic than conventional oils; so,
>>>> during the winter Mobil One will pump more water into
>>>> the sump than will the 39 cent stuff from the corner
>>>> drug store.
>>>>
>>>> If I was really paranoid about condensation, I'd not
>>>> put synthetic in the car when laying it up for storage.
>>>> Coming out of storage, I'd drain off a quart or so of
>>>> oil when pulling it out of storage. Add a quart or two
>>>> of 5W synthetic (to scavenge moisture) then start and
>>>> warm the engine. Drain the crankcase, fill it with
>>>> your favorite stuff and enjoy the ride.
>>>>
>>>> --
>>>> …PJ
>>>> ’89 HookerCar, ’02 E-blu 6-spd Coupe
>>>
>>> I drained the first 1/2 quart out of the pan, before I
>>> warmed it up to drain, into a glass beaker we used to
>>> separate and gage paint particulates, (metal
>>> flake-iridescents) to see if any water shows up.
>>
>> wouldn't think that any water would show up after
>> draining the first 1/2 quart out of the pan,
>> before warming it up.
>> water would come to the top instead of the bottom of the
>> pan.
>>
>> my2¢
>> --
>> "Key"
>
> oil floats on water.


yep, sure does...
my bad:-)

--
"Key"

If you haven't figured it out in the last 34 years, it's probably not
that important by now.

John