*GF-5.com

[buster]

Quote:
Base Oils
A greater demand for 0W-20 oils is expected. Formulating 0W-20 oils requires the use of Group III Base Oils.


GF-5 will make most if not all oils synthetic by the Grp III definition.

Quote:
Viscosity Modifier
Viscosity modifying additives (VM) control the temperature-viscosity relationship of engine oils. Viscosity modifiers are susceptible to shear degradation in the engine. Viscosity modifiers with good fuel economy and high temperature deposit performance will be needed to meet the requirements of GF-5.


Quote:
Improved phosphorous retention (ZDP) to enable emission system durability while maintaining engine protection


Oils meeting GF-5 will be very good.

http://www.gf-5.com/the_story/testing/newtestingpage/

Have a look at the testing that goes into these oils.

http://www.gf-5.com/

Oil analysis is a very valuable tool, but I would never expect it to be able to tell me whether an oil has met all of the necessary criteria to meet a specification.

 

[Bryanccfshr]

Oil just keeps getting better.

 

[tenderloin]

And the prices will be?

 

[Bryanccfshr]

For a long time a quart of oil and a gallon of gas were comprable in prices. I would expect a return to that Paradigm,,

(I bet oil will cost a MINIMUM of $4 a quart, )

 

[MGregoir]

GF-5 is basically going to require all 40 weight oils to meet A3, looking at this chart.

 

[nthach]

I wonder how this will work out with older(pre-2000) engines...


And

on using the Ford modular V8 for the Sequence VG test, they need a few Toyota MZ V6s if they really want to test for sludge resistance...

 

[Chris71]

Nothing a quarter-bottle of STP can't fix