RE: [DML] Re: What motor oil to use.
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RE: [DML] Re: What motor oil to use.

I "second" Dave's choice of Mobil1 15W-50. Actually, if you look at the 
detailed specs for that oil and other "competing" oils, you 'll see little 
difference in the "pour points" of the synthetic 15W-50 and most 
conventional 10W-30 and even 5W-30 oils. What does that mean? It means don't 
be too scared to use Mobil 1 15W-50 oil even in moderately low temps. Mobil1 
15W-50 also excels at high temps. (As do some other oils, especially 

The SAE viscosity ratings of oils are AT BEST an extremely rough guide to 
the "flowability" of oils at various temps.

My son has been using Mobil 1 15W-50 in his car and we recently had his 
motor on a stand with the valve covers and oil pan off. The parts we could 
inspect were absolutely immaculate.

I am also convinced that synthetic oil is the way to go.

-Joe Kuchan

>Manual states 20W50 for hot weather. This sounds "heavy" but is not
>unusual for Euro engines of that era. I've started using 15W50 Mobil 1
>(after doing a teardown on a 150K-mile BMW engine that had always run
>Mobil 1 I was sold). Oil is like a religious argument - you'll get a
>ton of opinions on this one, and unless you drive it 100K miles and
>then tear it down, you'll never figure out who's right.
>I know many folks running 10W30 without issue. In any case I'm
>convinced that full synthtetic is well worth the money.

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