>>I put 1/4 qt. of Marvel Mystery Oil in the crankcase with each oil
>>change (and change the filter with each oil change). Others report good
[quoted text clipped - 5 lines]
>>you don't know the proportions, and I guarantee you any uncertainty will
>>be exploited by the manufacturer as far as pricing).
> I thought you couldn't mix synth with non-synth...In my case, we
purchased a
> certified '04 with 22K.
A common misconception. Commercial blends are on the shelf now.
Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
adddress with the letter 'x')
pawn - 13 Sep 2004 00:47 GMT
> > I thought you couldn't mix synth with non-synth...In my case, we
> purchased a
> > certified '04 with 22K.
>
> A common misconception. Commercial blends are on the shelf now.
But is it a special mixture? Is it the same as simply mixing consumer
synthetic and conventional oil off the shelf?
The fact of the matter is, my dealership warned me against mixing the
two as well (without explanation) and I did not take your advice to
phase it in. I've got about 3500 miles on my first synth job. I
believe I will stick to about this range with a new filter even with the
synthetic.
I'm starting to wonder just how prevalent the 2.7l problem is. I mean,
I've known about it for about 6 months now, and I have yet to talk to
someone, or read a post in here, etc., from someone who had theirs fail.
Maybe it's just an unreasonable percentage of premature failures, but
small nonetheless (e.g., less than maybe 20%). I'd sure like to see
some hard statistics.
BTW, how did your crank look when you took you oil pan off?

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doc - 13 Sep 2004 03:14 GMT
> > > I thought you couldn't mix synth with non-synth...In my case, we
> > purchased a
[quoted text clipped - 8 lines]
> two as well (without explanation) and I did not take your advice to
> phase it in.
Fairy tales can come true, it can hppen you. . . . .
High Sierra - 13 Sep 2004 01:04 GMT
>>> I put 1/4 qt. of Marvel Mystery Oil in the crankcase with each oil
>>> change (and change the filter with each oil change). Others report good
[quoted text clipped - 19 lines]
> http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
> -----== Over 100,000 Newsgroups - 19 Different Servers! =-----
What is the point of mixing Synthetic oil and regular oil. Seems to me any
amount of regular oil in the synthetic will cancel any benefit.
Bill Putney - 13 Sep 2004 11:10 GMT
>> > I thought you couldn't mix synth with non-synth...In my case, we
>> purchased a
>> > certified '04 with 22K.
>>
>> A common misconception. Commercial blends are on the shelf now.
> What is the point of mixing Synthetic oil and regular oil. Seems to me
> any amount of regular oil in the synthetic will cancel any benefit.
Dilute - possibly. Cancel - no. However, there are supposedly some
areas where non-synth is better than synth (something about piston
scuffing from an article I read some years ago), and together they cover
the bases. But it would not cancel the benefits.
I don't think that the incentive behind commecial blends is purely to
lower the cost of the oil itself. There are supposedly some synergistic
technical benefits in a blend.
Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my
adddress with the letter 'x')