Just do a regular oil change. After one regular-interval run on
synthetic you should be ok to run longer intervals depending on the
service it sees.
On Sun, 25 Sep 2005 14:20:50 -0500, firstname.lastname@example.org (Bill) wrote:
I have 10,000 on my 04' 2500HD 6.0 Crew Cab, and I've changed to full
synthetic at 5,000 miles. I also use a ACDelco Ultraguard Gold oil filter
( UPF44 part#25329389}, any GM Dealership should have or order some for you,
for around 9 or 10 bucks. Go to www.acdelco.com , and read about them. A
great oil filter. They use them on Corvettes, Escalades, etc.
Changing to full synthetic with so many miles wouldn't be a good idea. Full
synthetic cleans the inside of your engine, if you had any bad gaskets, it
would cause your engine to start leaking oil. (this is what I've been
A conventional oil that had the same detergent package as a full
synthetic would clean the inside of the engine in exactly the
same manner as a full synthetic. Synthetic oil in and of itself
has no magical cleaning power, it's the detergent additives that
keep the engine clean.
Your source of this disparity in detergent packages comes from
"Bad gaskets" leak just fine when using conventional oil.
(this is what I've been
Changing to full synthetic with so many miles wouldn't be a good idea.
Full synthetic cleans the inside of your engine, if you had any bad
gaskets, it would cause your engine to start leaking oil. (this is what
I've been told).
You've been told wrong I'm sorry to say. All modern Motor Oils contain
detergents. Synthetics won't clean your engine any better than the
cheapest recycled wal mart oil.
The difference between sythetics, and conventional oils might be a
smaller molecular structure. It is a fallicy that synthetics cause
leakage. Synthetics are made from base oil stock. Mark
A Company I Sell used parts to has a fleet of pick up's, semi trucks,
medium duty trucks cranes & equpiment. They do not buy anything new
(most over 150,000 miles). First thing they do is change the fluids.
They use Lubercation Engeeners Syntecic 10W30 in gas engines. Stuff
looks like Moutain dew Code Red.
I have procured some and used it my self in high milage vehicals. No
ill effects. No leaks that were not there before, and no worse. And no,
you don't need any special oil filters.
Wix is a pretty good filter, that's who makes the N.A.P.A. oil filters. I
mentioned the ACDelco UPF44 Ultraguard Gold filter, because if you're
spending the extra money to go full synthetic, use the best oil filter, to
go with it. http://www.acdelco.com/html/catalog/index_auto.htm
(website about the filter) check the different links that talk about the
Another fallicy about Oil Filters. Don't matter what you buy, you wanna
spend $10 bucks on a filter, be my guest. By 1000 miles, any filter you
buy that is the size of a soda can is essentially shot, plugged, and
you're by-passing it.
You want good filtration? Install a Bypass Filter Kit from somebody
like Amsoil. This is no plug for Amsoil Brand Oil. Use whatever Oil
you like. Mark
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