 Is this the death knell? (Oil light on when hot) |
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| Elliot Cannon |
 Jul 15 2015, 02:06 PM
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#21
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914 Guru  Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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QUOTE(cpavlenko @ Jul 15 2015, 09:23 AM)  I was told to use Chevron Delo 15/40 for summer and Valvoline VR1 10/30 for winter. what do u guys think about this. (IMG:style_emoticons/default/huh.gif) I use Mobil 1 15W50 year round. |
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| cary |
Jul 15 2015, 06:08 PM
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#22
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest
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I live in PDX with 4 air cooled cars. I use Brad Penn 15-40 in the winter and 20-50 in the summer.
I think Discount Import parts has both Joe Gibbs and Brad Penn. I use Mobil 1 V-Twin in the 3.2 911 engine. |
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| rick 918-S |
Jul 15 2015, 06:49 PM
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#23
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Hey nice rack! -Celette Group: Members Posts: 20,427 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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I had a similar thing happen to my 928 engine in the Alien half way across country. Gauge started to drop and act funny. It was blazing hot out. I bought a plane ticket and flew home got the trailer. When I arrived home I pulled the engine thinking I damaged something. Pulled the pan and discovered what looked like coal slag but when you picked it up it crumbed and turned into a black smudge. On a hunch I brought a oil sample to a forensic testing facility. The oil was clean (no metals) but had the viscosity of 30wt. I posted the results of the test on the Rennlist forum. The consensus was I cooked the viscosity enhancers out of the oil. There were guys that reported the use of Castrol GTX 20/50 doing the same thing in sport bikes in 3 laps. They refer to it as Castrol Brown. When it cooks it turns the inside of your engine a brown tint.
I never did pull the engine apart. I put the pan back on, changed to Brad Penn and ran the shit out of it. I have now collected the parts to add an external cooler. I guess the oil is getting hotter than the coolant. |
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