0W-40 or 5W-40 for my 2002 Audi A4 1.8T Turbo?

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May 10, 2011 | 09:26 AM

ssingh

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1st Gear

Joined: Feb 2011

Posts: 62

0W-40 or 5W-40 for my 2002 Audi A4 1.8T Turbo?

I been using 0W-40 for my car, but should i continue using 0w-40 or should i change it to 5W-40 for summer? Or it doesnt make difference?

May 10, 2011 | 11:38 PM

Compongi

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Joined: Sep 2010

Posts: 22

From: mi

my mechanic said use 5W-40, same car

May 11, 2011 | 06:15 AM

olstyn

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Joined: Nov 2009

Posts: 440

From: Twin Cities, MN

Mine seems to do fine on a steady diet of Mobil 1 0w40, year round. On some level, I kinda doubt the difference between 5w40 and 0w40 is gigantic anyway...

May 11, 2011 | 09:04 AM

ssingh

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Joined: Feb 2011

Posts: 62

Alright so for now, summer, i should use Castrol 5w-40 or Mobil 5w-40?

May 11, 2011 | 11:56 AM

olstyn

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Joined: Nov 2009

Posts: 440

From: Twin Cities, MN

Whatever way you go, make sure you're using synthetic.

May 11, 2011 | 03:16 PM

pa4ul

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Joined: May 2007

Posts: 3,413

oil weights should be used in accordance to outside air temp. If u live where its hot a thick oil is a good idea as it holds up better in higher tempretures.
http://www.aa1car.com/library/oil_viscosity.htm

Last edited by pa4ul; May 11, 2011 at 05:24 PM.