Definitely not 7-11 oil. ;)
Castrol and Valvoline are among the top on "dino" oil. Pennzoil and
Quaker State have a slightly tarnished reputation.
The Synthetics don't make the engine leak...they just keep it clean. If
you find a leak after switching to synthetic, fix the leak. On the
break-in, if it's in a factory engine, you can use it at any time, but
preferred is still after the initial 5000+mile break-in period. On
rebuilt engine with higher quality rings, do not use synthetic until
it's been broken in (higher quality rings do take longer to seat).
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Bill Pitz
Sent: Tuesday, July 29, 2003 11:10 PM
To: dakota-truck-moderator@bent.twistedbits.net
Subject: Re: DML: Ouch...this is gonna hurt (sales/quality)
On Tue, 29 Jul 2003 07:12:21 -0400, bernd@texas.net ("Bernd D.
Ratsch") wrote:
>
>BTW: A majority of the folks on the web lists use either synthetic or
>a much higher quality oil than the rest (in most cases). Running
>synthetic (or a higher quality oil) reduces the chances of "sludging
>up" the engine...with regular oil change intervals. The complaints are
>there, just not as many on the web boards.
What would you consider to be a higher quality oil, short of synthetic?
I've currently got about 43,000 miles on my '00 4.7. I've been
contemplating the switch to synthetic for a while, but I have some
concerns. A while back (twice actually), I had a very slow oil leak
which the dealer fixed both times, under warranty, and said that it was
caused by a loose valve cover. After the second time, it hasn't
happened again, but the potential for the synthetics clearing out the
dino "patches" has always worried me a bit, as I would prefer to avoid
the cost of having to have those fixed for the time beings. The
relative cost of buying synthetic oil doesn't really bother me, though.
And then there's the people who say that you shouldn't switch to
synthetic oil except in the beginning (after the break-in, of course).
Since you're quite an expert authority figure around here Bernd, I'd
feel better about deciding with your input :)
Thanks,
-Bill
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