Should have asked him what had he been smoking .... for one synthetic oil
has a tendecy to slow down the break-in process NOT speed it up. 3k-4k
would probably o.k. to switch over. remember that several new autos use
synthetic from the factory. I also don't remember the owners manual
recommending 5w30, mine says 10w30. However in the cold winter months I did
use 5w30. Metal in a new engine is normal, however that is why I like to
change to a 'good' filter as soon as the truck is broken in..
----- Original Message -----
From: "Paul Macey" <pmacey@ans.net>
To: <dakota-truck@buffnet.net>
Sent: Monday, April 30, 2001 10:54 AM
Subject: DML: New 4.7L and When To Put Synthetic Oil In
> I was just at the dealer going over my new 2001 DAK QC
> AWD/4.7/Auto/3.92/LSD/4W-ABS/T&H/Sport+ before they prep it, and asked
> when I could put in synthetic oil.
>
> He said even though 500 miles is considered broken in, to wait till 8-9K
> miles before using synthetic, as synthetic oil would speed up the break in
> process on a new engine, something you don't want to do
>
> He also said not to use 5w30 but 10w30, that the owners manual should not
> list 5w30 as a recommended oil...thoughts on this?
>
> BTW, he showed me a new DAK a dealer drives, pulled out the dipstick so I
> could see some metal filings glinting in the sun, a normal part of engine
> break in, he said...anyone see this also?
>
> FWIW, I'll be using Royal Purple Synthetic Oil, possibly a Mobil1 filter.
>
>
>
>
>
>
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