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60 W oil in an 3.0 liter SC motor?
Just took advantage of the AutoZone discount on Valvoline VR1 motor oil but all they had left was 60W. Do you guys think this is too thick for an SC motor? I was thinking maybe in the heart of Summer (NE Ohio), but not sure.
Could not pass it up - less than $10 for ten quarts!!
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Vance '83 SC Cabriolet - The "Matrix" '73 914 - "Spicy Mustard" - SOLD |
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03-18-2017, 10:46 AM
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Location: west michigan
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buy some 10W and mix it 50/50
Just joking. sorry....I don't know.
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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03-18-2017, 11:03 AM
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Location: Lawrenceville GA 30045
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60W or 10W60/20W60? - big difference
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Mark '83 SC Targa - since 5/5/2001 '06 911 S Aerokit - from 5/2/2016 to 11/14/2018 '11 911 S w/PDK - from 7/2/2021 to ??? |
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03-18-2017, 11:06 AM
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Straight 60W. Don't think I have ever seen it before?
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Vance '83 SC Cabriolet - The "Matrix" '73 914 - "Spicy Mustard" - SOLD |
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03-18-2017, 11:08 AM
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Location: Portland Oregon
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Do NOT use SAE 60w in a 911 unless you wish to buy a lot of expensive parts. Thats far too viscous for these engines.
Leave that stuff for Top Fuel NHRA cars.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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03-18-2017, 11:30 AM
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Location: Boston, MA
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You can't use it, unless your ambient is well over 100F.
A multi-viscosity oil like a 15W-60 is going to be thinner at cold startup than an SAE 60, which is what you want to get the oil pressure up and oil flowing quickly. This chart is for a 1984 911, courtesy of the LN Engineering website. It doesn't even show an SAE 60 oil. But an SAE 40 can only be used above roughly 70F, whereas a 10W-40 can be used from about -5F to about 90F. Based on the way the chart progresses, the minimum temp for an SAE 60 would be 60C (140F). You need that lower W number for cold startup.  Mark
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1979 911SC Targa Last edited by Mark Salvetti; 03-18-2017 at 11:38 AM.. |
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03-18-2017, 11:35 AM
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Looks like I have ten quarts of 60W VR1 I won't be using - anybody?
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Vance '83 SC Cabriolet - The "Matrix" '73 914 - "Spicy Mustard" - SOLD |
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03-18-2017, 02:20 PM
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1983 Porsche 911 SC Cabriolet 3.0
