No

"Z_2K" <NONE@jam_on.com> wrote in message
news:46d61c25$0$6403$4c368faf@roadrunner.com...
> My '01 Civic EX, 235K miles (mostly I-95 commuting @ 100 miles/day) is
> using about 1/2 qt. 5W-20 per 4000 miles.
> I go 8000 miles (4 months) between oil changes. (Maint.manual states
> 10,000 mi. interval). Should I start thinking of using a heavier oil,
> 5W-30 ,
> at this time ?
>
>