5w3- or 10w-30 ?

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Nov 28, 2008 | 10:13 AM

blackfug

Thread Starter

Joined: Aug 2008

Posts: 1

5w3- or 10w-30 ?

2003, 3.8. Manual says 10w-30, oil fill cap says 5w-30. I bought this car new, so it has the factory oil fill cap. Which weight should I use? Car gets stored in the winter.

Nov 28, 2008 | 07:16 PM

RocknSS04

Monte Of The Month -- August 2007

Joined: Sep 2006

Posts: 5,231

RE: 5w3- or 10w-30 ?

For Wisconsin, use Mobil 1 0w-30 or 5w-30, or Mobil 1 Extended Performance 5w-30 and double your intervals between changes (but change the filters at 3-5K)

Nov 30, 2008 | 03:47 PM

nemesis

Monte Of The Month -- February 2009
2009 Monte Of The Year

Joined: Aug 2008

Posts: 2,810

From: over here

RE: 5w3- or 10w-30 ?

i use mobile one synthetic 10w30 year round

Nov 30, 2008 | 06:12 PM

Cowboy6622

Fallen to the Dark Side - Resident Ford Man

Joined: Jun 2007

Posts: 9,901

RE: 5w3- or 10w-30 ?

i use 10W 40 myself because my car has alot of miles on it.

the lower number before the W gives you a better cold start. if you were giong to be driving it in the wisconsin winters, i'd say use the 5W 20 or 5W 30, but 10W 30 should be good for spring/summer time use

Dec 1, 2008 | 11:50 AM

drewskie043

Joined: Oct 2008

Posts: 432

From: St. Paul, MN

RE: 5w3- or 10w-30 ?

Quote:

ORIGINAL: Cowboy6622

i use 10W 40 myself because my car has alot of miles on it.

the lower number before the W gives you a better cold start. if you were giong to be driving it in the wisconsin winters, i'd say use the 5W 20 or 5W 30, but 10W 30 should be good for spring/summer time use

cowboy6622 said hit it right on the head. i use 5w30 mobil1 year round since i have to deal with the cold weather