Oil weight??
Thread Starter
Newbie
Joined: May 2007
Posts: 1
Likes: 0
From: DC
1990 Mercedes Benz 420 SEL
Oil weight??
Hello all, I am new to the site as well as new to the Mercedes. I have now, a 1990 420 SEL with 172,000. It runs great. I do not have a owners manual yet and was wondering what weight oil it takes and what kind you guys recommend. Thank.
MBWorld Fanatic!
Joined: Apr 2006
Posts: 2,290
Likes: 1
From: New Zealand
1993 300SEL/S320
You have a W126 not a W140, oil weight is mainly to do with the temps where you live and how easy it has to be for the oil to flow. A decent mechanic where you live should be able to tell you.
Super Member
Joined: Aug 2005
Posts: 801
Likes: 1
From: Mercerville New Jersey
1991 560SEC Teal 1989 420SEL Ice Blue 1984 500SEC White
I have some 126's and only use oil that are not synthetic.
I like the every 3k miles get to look around oill changes.
I use a 20/50 in all seasons, but my cars are garaged.
An older car is not really designed for synthetic oil, I have found friends, with 126's, to experience leaking problems after switching to synthetic oil.
Bruce
BENZITCH
I like the every 3k miles get to look around oill changes.
I use a 20/50 in all seasons, but my cars are garaged.
An older car is not really designed for synthetic oil, I have found friends, with 126's, to experience leaking problems after switching to synthetic oil.
Bruce
BENZITCH
Senior Member
Joined: Apr 2004
Posts: 393
Likes: 2
From: Mesa, AZ
2011 E350 Bluetec, 1996 S320 & 2006 E320 CDI Sold to my son & 2017 GMC 2500 Diesel Pick up
I have some 126's and only use oil that are not synthetic.
I like the every 3k miles get to look around oill changes.
I use a 20/50 in all seasons, but my cars are garaged.
An older car is not really designed for synthetic oil, I have found friends, with 126's, to experience leaking problems after switching to synthetic oil.
Bruce
BENZITCH
I like the every 3k miles get to look around oill changes.
I use a 20/50 in all seasons, but my cars are garaged.
An older car is not really designed for synthetic oil, I have found friends, with 126's, to experience leaking problems after switching to synthetic oil.
Bruce
BENZITCH
