SAE 5W-20 and SAE 5W-30 engine oils are recommended for all operating
temperatures. These engine oils are designed to improve low temperature
starting and vehicle fuel economy. Refer to the engine oil filler cap for
the preferred engine oil viscosity grade for each vehicle (5W-30 Oil Filler
If you look in the back of the owners manual it will give you a chart at
what temperatures to use what viscosity.
I checked as you suggested. Oil filler cap says 5w30, engine oil
viscosity chart in the owner's manual says 5w30 preferred for temps
from 100F to below -20F, 10w30 for temps 0F to over 100F. Nothing at
all about 5w20.
With the current temps in my area hovering around 90F, I am wondering
if I'm at the margin for 5w20 usability.
On Sun, 16 Jul 2006 05:28:36 -0400, "maxpower"
No, I don't want thinner oil when it's warmer. I asked whether
Chrysler approves 5w20 as an alternative to 5w30, and if so, how is it
documented (service bulletin, or some such document?).
One other respondent indicated that 5w20 is specified for his 2006
On Tue, 18 Jul 2006 01:58:49 GMT, firstname.lastname@example.org wrote:
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