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Registered
Join Date: Jun 2009
Location: Chicago
Posts: 157
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If the blue stuff is swepco, I can accurately report that the Valvoline 80W90 is definately an improvement in synchro operation. What I can't report is exactly what ailes my trans and therefore WHY it improved the operation.
Still a good data point for people looking to test different methods to improve shifting. If I have learned anything in life (especially related to mechanical and eleectonic issues) it is that there are fewer absolutes than you would think. Because we don't know why a certain oil type or viscosity works for someones application, we can't assume that it will be good for every application. My lesson learned here was try different things and measure the result. This cost me one hour and $25. Well worth it in my case. Good luck to all. Larry |
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06-12-2009, 07:46 AM
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Registered
Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,523
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Quote:
I have never liked swepco, and I know I am in the minority. I just did my gear box, and refilled it with 80W90 stuff from Valvoline. Works great.
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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06-12-2009, 08:11 AM
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Tony
Join Date: Sep 2007
Location: Cincinnati, OH
Posts: 1,149
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I have the same hesitation from first to second - currently have Red Line synthetic, but will try the valvoline dino oil to see if it gets better...
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Tony 22 GT4 04 E46 M3 87 Carrera (sold - craving aircooled again) 12 991 Carrera (sold) |
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06-12-2009, 10:40 AM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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Great. I just spent $60 on synthetic oil and now everyone says to use the cheap crap.
And yes, I opened it to check the color. 
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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06-12-2009, 12:12 PM
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