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Old 01-28-2012, 05:42 PM   #1
Scooby Newbie
Member#: 180778
Join Date: May 2008
Default 5w30 or 10w30?

i have a 2005 sti. i use fully synthetic 5w30. someone told me that i should start using 10w30. my car has 45k miles on it. what do you guys use or recommend? no mods either.
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Old 01-28-2012, 05:56 PM   #2
👏 Big Ron 👏
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
on car parts so PM
me b4 j00 buy


What is physically stamped on your oil fill cap under the hood of your car?
What does your owner's manual say?
What does the sticky thread at the top of this forum titled Oil FAQ tell you?
Is that someone who told you a tribologist?
Do you know what a tribologist is?
I use the cheapest crap they sell at Walmart, you should use what YOU like.
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