Thanks, I have seen some vehicles develop leakage problems, that is what
kind of scares me, but I'm not sure what brand. Also at the parts store I
worked at, the synthetics were always finding a way to leak out of the
bottles no matter how tight the cap!
Take Care & Keep On Truckin'~~~~~John
<<'96 Dakota Sport 4X4, 3.9L 5spd>>
-----Original Message-----
From: owner-dakota-truck@dakota-truck.net
[mailto:owner-dakota-truck@dakota-truck.net]On Behalf Of mrdancer
Sent: Wednesday, April 10, 2002 7:59 PM
To: dakota-truck-moderator@bent.twistedbits.net
Subject: DML: Re: Synthetic oils
""jkp61"" <jkp61@horizonview.net> wrote in message
news:FMEELLPCNAGCKKFHCHHKIEIFCAAA.jkp61@horizonview.net...
>
> Has anyone experienced leaking on their high mileage Dakotas after
> switching to synthetics(Diffs, tranny/transfer case)? I know syn. oils
will
> usually find any way out that they can.
> Also has anyone had any experience, good or bad, with Royal Purple
> Synthetic Oils that Jegs sells? Thanks for any help.
> Take Care & Keep On Truckin'~~~~~John
> <<'96 Dakota Sport 4X4, 3.9L 5spd>>
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Only cheap synthetic oils will leak anymore than dino oil. Synth oils have
a base made up of a mixture of diesters and PAO's. The more expensive
synths, such as Redline, Amsoil and Mobil1, each contain a proprietary
mixture. If you get too much of one base, you have seal shrinkage (which
led to all of the horror stories of synth oil running out of engines back in
the 70's), but if you get too much of the other base, then you have seal
swelling. Stick with a quality synth oil and you shouldn't have any
problems.
FWIW, I switched my Dak ('92, 5.2L) to synth at 70k miles. At the time, it
was using a quart of oil about every 2500 miles. After switching to synth,
the oil usage DROPPED to a quart every 5000 miles. I also extended my oil
drain interval from every 3k miles to once a year (about 12k miles) and
changed the filter twice a year. This was using Amsoil 0w30 oil in Texas
100+ degree heat (at least in the summer, which is like 8 months ;-). The
truck now has 168,000 miles on it, still burns a quart every 5,000 miles and
still runs like new.
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