AMSOIL Sequence III Test for SL

[msparks]

Recently Amsoil Tested their 10w30 oil for the SL specification.

http://www.amsoil.com/performancetests/sequence_3f.htm

The Sequence IIIF test is a stringent API SL, ILSAC GF-3 test designed to measure oil thickening and piston deposits in high temperature service, as well as provide information on valve train wear. The test is designed to emulate high-speed service under high ambient conditions

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Because AMSOIL is formulated to provide superior performance over extended drain intervals, testing was allowed to continue for 240 straight hours, three times the length of the standard Sequence IIIF test.

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[BOBISTHEOILGUY]

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Recently Amsoil Tested their 10w30 oil for the SL specification.

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Is this their xl7500 series or the 2 and 3000 series? if the latter two, then this does not qualify this oil as an SL api oil due to the higher levels of zddp which it fails to meet.

As stated in their objective, this was a "Test to determine its effectiveness in preventing deposit formation and providing wear protection in high temperature conditions" It does show the basic performance of this oil using some of the tests but is it an independant lab that did this or them?

 

[TooSlick]

Bob,

I think the point of this test is to show that the API, "SL" specification limits aren't very hard to meet. This is why I'd look for oils that meet the most stringent European specs, like ACEA, A3/B4 or VW 502/505.

The Schaeffers 7000 Series blends meet some or all of these specs, depending on the application. The 5w-30/10w-30 meet the ACEA "A3" spec for gas engines and the 15w-40 meets the ACEA "B4" specs for passenger car diesels, along with VW 502/505.

Meeting the B4 specification as well as A3 requires higher detergency, which is useful in running long drain intervals ....

 

[Tommy]

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if the latter two, then this does not qualify this oil as an SL api oil due to the higher levels of zddp which it fails to meet.

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What is the cutpoint for zddp in SL oils Bob?

 

[TooSlick]

Tommy,

For the xw-20 and xw-30, GF-3 oils, phosphorus is capped @ 1000 ppm. There is no actual limit on zinc, however since it is chemically combined with phosphorus in the form of ZDDP, it is normally limited to about 1200 ppm as a result.

There are no limits on xw-40 and xw-50 grades.... A 20w-50 racing oil can have as much zinc as they can afford to use ....The last time I saw baseline data on the Mobil 1, 15w-50 it had about 1200 ppm of P and 1500 ppm of Zn.

 

[Tommy]

How does Schaeffer meet SL (5W30 and 10W30) with phosphorous levels higher than 1400 PPM Bob?

 

[msparks]

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Originally posted by BOBISTHEOILGUY:

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Recently Amsoil Tested their 10w30 oil for the SL specification.

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Is this their xl7500 series or the 2 and 3000 series? if the latter two, then this does not qualify this oil as an SL api oil due to the higher levels of zddp which it fails to meet.

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Bob, the oil test is the originial formulation of 10w30. This is the 25,000 mile stuff. Also the 5w30 is of the same formulation.

 

[Dick in Falls Church]

>>>Is this their xl7500 series or the 2 and 3000 series? if the latter two, then this does not qualify this oil as an SL api oil due to the higher levels of zddp which it fails to meet.

As stated in their objective, this was a "Test to determine its effectiveness in preventing deposit formation and providing wear protection in high temperature conditions" It does show the basic performance of this oil using some of the tests but is it an independant lab that did this or them?

As stated, this is the regular, run of the mill, been around for years AMSOIL 10W-30 (product code ATM).

The test was done by an independent lab. (Don't know that AMSOIL even has a 1996 Buick 3800 Series II engine in their lab).

 

[Jay]

If AMSOIL is going to go to the trouble and expense of running multiple-length sequence IIIF tests, I wish they would do that with their XL7500 5w-20. They could then gain Honda and Ford approval as Mobil, Union 76, and Ford Motorcraft have done with their 5w-20's.