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Old 04-24-2009, 11:48 PM   #1
Scooby Newbie
Member#: 208724
Join Date: Apr 2009
Chapter/Region: RMIC
Location: SLC Ut
02 WRX

Default Good oil temp

Ok been looking around and seeing that somepeople say 200 to 210 is a good oil temp. I have also seen 220 to 230. I think the factory said 245 is the max.
I'm at 220 with the oil plug in the front with the oil filter. Is this to high? If so what can i do about?
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Old 04-25-2009, 02:55 AM   #2
Patrick Olsen
NASIOC Supporter
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
1997 Legacy 2.5GT
1996 Impreza coupe


I've always been taught that 220-230F is a good target, as that will boil off any moisture that gets entrained in the oil.

The factory oil cooler that goes between the filter and the block seems to hold oil temps around 205-215F on my N/A EJ25 in normal driving.

Max oil temp depends on what oil you're running. In track use I see 260-270F, but I'm not too worried about it. I know guys who run 300+F on track. As long as you're using good quality synthetic and you've maintaining sufficient pressure at those temps it's not an issue.

Pat Olsen
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Old 04-25-2009, 09:31 AM   #3
Scooby Guru
Member#: 98961
Join Date: Oct 2005
Chapter/Region: MAIC
Location: NOVA
2003 WRX


Yeah, and change it fairly often. I saw an oil analysis once that showed 100 track miles was the same as 3-4000 regular miles wear wise. I change the oil every 2 track days.
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Old 07-19-2009, 10:08 PM   #4
Scooby Specialist
Member#: 91600
Join Date: Jul 2005
Chapter/Region: E. Canada
Location: North Bay


I use Amsoil 5-30W and my peak oil temp on track day was 245F. Is this cool?
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