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Apr 30, 2009 | 05:48 AM

#16

Djack04F150XL

Senior User

Joined: Aug 2008

Posts: 298

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From: Vicksburg, MS

From previous experience if the oil is clean after 3 to 5K it usually is not cleaning the engine, causing sludge buildup. Does Amsoil and the Amsoil filter remove sludge and other deposits? If it is that efficient I am all for it, but I would like to see some real test data.

Apr 30, 2009 | 06:36 AM

#17

ChargersFanInCO

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Joined: Aug 2008

Posts: 2,313

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From: Sunny, Snowy, CO

Quote:

Originally Posted by Djack04F150XL

Well, hopefully my truck doesn't have sludge buildup in her. She only has 4300 miles on her. That's why my oil is clean...lol

Apr 30, 2009 | 06:37 AM

#18

ChargersFanInCO

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Joined: Aug 2008

Posts: 2,313

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From: Sunny, Snowy, CO

another Amsoil question: Do you change the filter before 25k?

Apr 30, 2009 | 05:42 PM

#19

wildcard30

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Joined: May 2003

Posts: 1,666

Likes: 4

From: Sunny tourist infested FL

I use Amsoil in my Harleys. And it works very well. I use the 20W50 for V-Twins. It helps the motor run cooler.

I have never used it my cars/trucks...

But I do use Motorcraft 5W20 oil and filters in my Fords. I traded in a 2001 Focus in January of this year on a new 2009 Focus.

Miles on the 2001 at trade-in, 362,718

Not bad for using just good old Motorcraft, Ford recommended, motor oil.

I can change my oil in 20 minutes. It also gives me a chance to look around under the vehicle for other problems.

As with all the other oil threads on this forum, you may have asked about Amsoil, but you will get input about other products.

Apr 30, 2009 | 07:57 PM

#20

magnet1

Senior User

Joined: Aug 2008

Posts: 278

Likes: 1

From: Bethlehem, PA

The oil that comes out after 25,000 miles is definetley darker, but the viscosity or the feel of it between your fingers is what doesen't change. All oils when drained, pour like water with no lubrication properties left at all; Amsoil comes out like it went in. The new filters they have now are good for 25,000 miles, same as the oil. It used to be a filter every 10,000 miles, but new filters have been designed. If you are switching from standard motor oil, I would change the first filter at 10,000 because its going to pull dirt out of your motor. The reason it doesn't create sledge is because the base of the oil doesen't use a parafin wax base like every other oil out there including Mobil1. Its all together a different setup and process.

Jun 3, 2009 | 07:21 PM

#21

fnx4wheeler

Senior User

Joined: Aug 2004

Posts: 254

Likes: 27

You use the same filter EA#### (Amsoil made by Donaldson I believe) for 25,000 miles. It filters down to something like 3 microns vs the usual 10.

Jun 3, 2009 | 09:04 PM

#22

klook

Junior User

Joined: May 2009

Posts: 82

Likes: 0

From: East Machias, Maine

I was going to throw some stories in there but I'll just say I'm with the magnet on this issue. I have my own "proof" and a good number of old guy naysayers. I will say that the last car my wife had blew a turbo after we traded it in. It had only 35,000 miles and had nothing but Mobil 1 in it since new. The salesman told me that it was sludged up. I will not use anything but Amsoil from now on.

Kevin