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#1654258 - 11/01/09 01:30 PM
Re: Infineum's Perspective On GF-5
[Re: pbm]
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Registered: 11/18/05
Posts: 1441
Loc: Burlington, Ontario, Canada
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I think it's a good trend, with the advances in lubrication 10W-30 has been an obsolete or redundant grade for quite a few years now. The better 5W-30 synthetics contain no VI's and most dino 5W-30's have no problem staying in grade over a mfr specified OCI.
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'74 Lotus Europa - 20W-50, '86 Porsche 928S - GC 0W-30 '96 BMW 328 - RL/QS 5W-20 blend '94 Caterham 7 - Toyota 0W-20/RL Adv'
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#1655833 - 11/02/09 05:55 PM
Re: Infineum's Perspective On GF-5
[Re: CATERHAM]
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Registered: 12/11/06
Posts: 1123
Loc: California
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I don't see any reason to keep moving the requirements bar higher for 10W-30 oils. At least in North America, nearly all of the new gasoline powered cars and trucks being sold call for something other than 10W-30 as the preferred oil. Leave 10W-30 at the SM/GF-4 level.
As far as the fuel economy starburst, who cares? The fuel economy difference between a current starburst 10W-30 and a non-starburst 10W-30 (assuming you can find one!) is by spec on the order of one or two percentage points under laboratory conditions. Anyone looking for a fuel saving xx-30 oil should be looking at 5W-30 or even a 0W-30 oil. Kill the starburst, nobody really cares about it.
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#1656062 - 11/02/09 08:55 PM
Re: Infineum's Perspective On GF-5
[Re: wgtoys]
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Registered: 10/09/04
Posts: 5325
Loc: Farmington New Mexico
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I care about the Starburst. It indicates ILSAC included oils. For the 10w30 I agree it needs to go. Let it fall out of the norm like 10w40.
_________________________
Freedom is being eccentric.
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#1656119 - 11/02/09 10:05 PM
Re: Infineum's Perspective On GF-5
[Re: Bryanccfshr]
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Registered: 03/27/09
Posts: 230
Loc: TX
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I don't think 10w30 sales are going to be affected by the presence of the startburst symbol. Most people using 10w30 probably stick to it because 5w30 seems too thin. They're not going to care if the symbol is there or not. JMO.
Anyway, there was suppose to be a meeting by the end of October. GF-5.com shows no new updates. Anybody know what happened? The spec should've been finalized by now.
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#1656727 - 11/03/09 01:12 PM
Re: Infineum's Perspective On GF-5
[Re: Bryanccfshr]
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Registered: 03/21/06
Posts: 6956
Loc: Las Vegas NV
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For the 10w30 I agree it needs to go. Some people want less plastic in their oil and live in places where that 5 vs. 10 means jack squat...
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#1656742 - 11/03/09 01:27 PM
Re: Infineum's Perspective On GF-5
[Re: Tempest]
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Registered: 10/20/05
Posts: 5062
Loc: PA
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What percentage of people is that?
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1996 BMW ///M3 RLI BioSyn: SHP 0w-30, 75w-110 LS Motul: Multi ATF, RBF 600
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#1656753 - 11/03/09 01:35 PM
Re: Infineum's Perspective On GF-5
[Re: d00df00d]
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Registered: 03/21/06
Posts: 6956
Loc: Las Vegas NV
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What percentage of people is that? Have no idea, but it does include me. Last I checked though, 10W30 was still the best selling grade.
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#1681968 - 11/23/09 11:31 AM
Re: Infineum's Perspective On GF-5
[Re: Tempest]
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Registered: 03/27/09
Posts: 230
Loc: TX
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#1683777 - 11/24/09 09:21 PM
Re: Infineum's Perspective On GF-5
[Re: chevrofreak]
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Registered: 04/19/04
Posts: 2755
Loc: New York
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I think start up does impact fuel economy a bit though. Per my own observations, it's a very significant impact. Going from a 10W-30 to a 5W-20 caused significant fuel economy gains while the engine is cold. ....that's why I use up the 10w30 in my stash during the summer.
_________________________
"When the productive are 'required' to support the unproductive it only guarantees that more people will become unproductive".
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#1689664 - 11/30/09 02:56 PM
Re: Infineum's Perspective On GF-5
[Re: crinkles]
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Registered: 03/27/09
Posts: 230
Loc: TX
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SAE J300 defines HTHS. It's #1.a on the spec.
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