[DML] more on oil

["nitrousgarageworks" <nitrousgarageworks@xxxxxxxxx>]

  I'm not advocating anything. I'm just giving you my experience(s). 
Your choices are your choices. You have to bear in mind that when the 
DeLorean was built synthetic oil was in it's infancy, and not 
generally out in the public eye. Motor oil grades are to protect 
against wear, and heat. Recall your basic engine theory: The 
crankshaft rides on a film of "shearing" oil, off of the crank 
journals. The journals contain soft friction bearings, soft enough to 
score with you fingernail. It seems to me that the heavy grade oil 
specified for the DMC "back in the days" was to ensure a good "shear" 
pattern. Obviously 20W50 would flow at a slower rate, and require 
more oil pump pressure to move it than say 5W30 or 10W40. 20W50 is a 
pretty heavy grade of oil. It would also reach the crank journals, 
and friction bearings slightly slower at start up, when most of 
engine wear occurs.
  You get what you pay for, and with oil your paying for the additive 
package. I've reviewed the test results on everything from Casteroil, 
to Mobil One, and the one with the smallest wear, and best overall 
test results is Amsoil. If you claim your car is as precious to you 
as mine are to me, I opt for the best I can get for them. Oil and 
wear being one less thing I have to worry about when it comes to 
choices.
  I don't advocate motor oil additives, as your just paying top 
dollar for, and adding in what should have been present in the oil's 
additive package in the first place. 
  Choosing your brand of motor oil, grade, and such should be done 
with an open mind to new ideas, and advances in product technology.








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