C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Synth runs hotter?

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Old Jul 30, 2008 | 07:12 PM
  #1  
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St. Jude Donor '05-'06
Default Synth runs hotter?

I had my oil changed (got a free Mobile one coupon at our car show) a little while back. I noticed it ran a few degrees hotter than when I took it out afterwards. I have run it for a while now and see 2-5 degrees hotter temps than before. I believe it had dino oil in it when I got it (had a penzoil sticker on the window) does anyone know if dino oil runs cooler than synth?
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Old Jul 30, 2008 | 07:38 PM
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On my motorcycle, oil temp dropped when I changed to synthetic (amsoil) by about 15 degrees. When I changed to syn on the vette, I saw no real difference, maybe 2-3 degrees cooler. Not hotter on either.
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Old Jul 30, 2008 | 08:09 PM
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Nothing to worry about. The Mobil-1 will clean out the sludge left behind by the dino, you might have to change to 10w-30 Mobil-1 to keep the pressure up.
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Old Jul 30, 2008 | 08:22 PM
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I seem to recall the temperatures being the same before or after I switched.
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Old Jul 31, 2008 | 07:59 PM
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My temperatures were up a noticeable 5-8 degrees after the switch.
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