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Does a turbocharger *need* heavy weight oil?

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Old 05-03-2005, 12:05 PM
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Default Does a turbocharger *need* heavy weight oil?

I have a whining from 5-7k RPMs in first, second, and third. At first I thought it was the transmission, but I'm thinking it could be the turbocharger instead. The t/c is a brand new greddy 15g, so the only thing that I can think of that I might have done wrong is using 5w30 - does a t/c really need 10w30 or heavier?

The problem still might just be my clutch, but I thought I should check with you all on this just to make sure I'm not making a big mistake running light weight oil in my t/c'd car.
Old 05-03-2005, 12:12 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (Aphelion)

uh...

I have a DSM and I use Mobile One synthetic. Weight should be based on condition of engine and tempiture. I wouldn't use fossil.
Old 05-03-2005, 12:14 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (Corbic)

yeah, I don't like dino oil either, I am running M1 5w30. Just wondering if something that light is bad for the turbo
Old 05-03-2005, 12:18 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (Aphelion)

shoulda posted this in the forced induction forum...

not sure what you *SHOULD* run in a turbo but i've gotten away with running 20W-50 in my old RX and I have friends who run much ligther synthetic in their dsms.....i don't think it matters much as long as its motor oil.
Old 05-03-2005, 12:36 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (CivicMike)

in case anyone knows the sound of a squealing turbo vs squealing clutch: http://www.wow-blitzkrieg.com/movies/squeal.wmv
Old 05-03-2005, 01:10 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (Aphelion)

you sure it's not your tranny bearings? It's a pretty common problem.
Old 05-03-2005, 01:22 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (murtnabila)

no, I'm not sure.
Old 05-03-2005, 01:53 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (Aphelion)

my brother ran 0w30 for awhile but is now back to 5w30... on his turbocharged SOHC D16
Old 05-03-2005, 02:12 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (JHU EH2)

5w30 Mobil 1 Fully Synthetic here.
Old 05-03-2005, 02:32 PM
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Default Re: Does a turbocharger *need* heavy weight oil? (Mario.)

I ran 20w50 in my boosted Hyundai that I got after high school.
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