Question about track oil temperature, pressure, and viscosity - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

mkodama · 10-14-2018, 06:17 PM

So, the Forester oil cooler option plumbed to the heater core lines is not working well for me; still hitting 270F on Laguna Seca, Sonoma Raceway, and Thunderhill Raceway with my almost stock BRZ. Oil results from Blackstone Labs says the Redline 0W-20 is doing just fine, but wear is kinda high. I don't have an oil pressure gauge, so I'm just relying on this video from savagegeese to get an idea:

From savagegeese:
0w20 Redline 225F @ 800RPM 7PSI Oil Pressure
0w20 Redline 225F @ 2000RPM 30PSI Oil Pressure
0w20 Redline 225F @ 4000RPM 48PSI Oil Pressure
0w20 Redline 225F @ 7000RPM 43PSI Oil Pressure

And I'm running 50F hotter.

Looking to professionals for how they do it, Toyota Motorsports GmbH with their 2017 86 CS-Cup they are running Ravenol 5W-50 and an oil cooler.
https://www.racingbytmg.com/en/motor...cup-downloads/

Being that I drive less than 5000 miles per year, the car is mainly for trackdays and weekend fun, and I'm prioritizing engine longevity over gas mileage, is there any reason I shouldn't go to thicker oil, a more significant oil cooler, and an oil pressure gauge? Or are there wiser options?

Picture for entertainment:

FirstWinter · 10-14-2018, 06:42 PM

High quality 0w-20 is fine. Get a better oil cooler. I like the Jackson Racing oil cooler. The Greddy one is pretty nice as well.

JIM THEO · 10-14-2018, 07:24 PM

Subaru and Toyota suggest higher viscosity for heavy use while STI sells 5W40 as an upgrade oil, they know more than what we know about our engines!
I use Redline 5W30 for spirited driving and is the thickest oil in this viscosity with very high HTHS.

BlueWhelan · 10-14-2018, 08:20 PM

If Toyota is using 40 or 50 weight oil WITH an oil cooler, then that should be a pretty good indication of what is required for a track car. If it was a daily driver I'd say 0W-20 is perfectly acceptable. However, since your car is primarily used for "track days and weekend fun," I'd say do what the pros do and invest in a track oriented oil cooler like the Jackson Racing kit, and use thicker oil. Repeated and sustained oil temps at 270 is really pushing your luck, and since Blackstone is already telling you that engine wear is higher than normal...yeah, I'd bump it up a grade or two. You're in California, so cold weather won't be a huge issue for the thinker oil.

mixxxx · 10-15-2018, 02:09 AM

You need a better oil cooler.
Jackson Racing and Greddy are popular for 86Cup participants whether Stock, NA or Boosted

See data below

All OE Engine
Jackson Racing Oil Cooler
Motul 300v 0w-20

Streets CCW
Avg Ambient: 90f
Max Coolant: 203f
Max Oil: 221f

Laguna Seca
Avg Ambient: 80f
Max Coolant: 199f
Max Oil: 226f

Buttonwillow
Avg Ambient: 110f
Max Coolant: 212f
Max Oil: 232f

CSG Mike · 10-15-2018, 05:34 AM

You need a proper oil cooler.

PM me. We can discuss your needs more.

10-14-2018, 06:17 PM	#1
mkodama 86 Challenge Join Date: Dec 2016 Drives: 2017 BRZ Location: SF Bay Area, CA Posts: 133 Thanks: 38 Thanked 78 Times in 49 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Question about track oil temperature, pressure, and viscosity So, the Forester oil cooler option plumbed to the heater core lines is not working well for me; still hitting 270F on Laguna Seca, Sonoma Raceway, and Thunderhill Raceway with my almost stock BRZ. Oil results from Blackstone Labs says the Redline 0W-20 is doing just fine, but wear is kinda high. I don't have an oil pressure gauge, so I'm just relying on this video from savagegeese to get an idea: From savagegeese: 0w20 Redline 225F @ 800RPM 7PSI Oil Pressure 0w20 Redline 225F @ 2000RPM 30PSI Oil Pressure 0w20 Redline 225F @ 4000RPM 48PSI Oil Pressure 0w20 Redline 225F @ 7000RPM 43PSI Oil Pressure And I'm running 50F hotter. Looking to professionals for how they do it, Toyota Motorsports GmbH with their 2017 86 CS-Cup they are running Ravenol 5W-50 and an oil cooler. https://www.racingbytmg.com/en/motor...cup-downloads/ Being that I drive less than 5000 miles per year, the car is mainly for trackdays and weekend fun, and I'm prioritizing engine longevity over gas mileage, is there any reason I shouldn't go to thicker oil, a more significant oil cooler, and an oil pressure gauge? Or are there wiser options? Picture for entertainment:

10-14-2018, 08:20 PM	#4
BlueWhelan Senior Member Join Date: Apr 2017 Drives: 2013 Blue Subaru BRZ. 6 Spd manual Location: Thousand Oaks, CA Posts: 216 Thanks: 139 Thanked 161 Times in 99 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Question about track oil temperature, pressure, and viscosity If Toyota is using 40 or 50 weight oil WITH an oil cooler, then that should be a pretty good indication of what is required for a track car. If it was a daily driver I'd say 0W-20 is perfectly acceptable. However, since your car is primarily used for "track days and weekend fun," I'd say do what the pros do and invest in a track oriented oil cooler like the Jackson Racing kit, and use thicker oil. Repeated and sustained oil temps at 270 is really pushing your luck, and since Blackstone is already telling you that engine wear is higher than normal...yeah, I'd bump it up a grade or two. You're in California, so cold weather won't be a huge issue for the thinker oil. Last edited by BlueWhelan; 10-15-2018 at 12:02 PM.

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10-14-2018, 06:42 PM	#2
FirstWinter Senior Member Join Date: Nov 2015 Drives: Car Location: Location Posts: 646 Thanks: 374 Thanked 422 Times in 254 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	High quality 0w-20 is fine. Get a better oil cooler. I like the Jackson Racing oil cooler. The Greddy one is pretty nice as well.

10-14-2018, 07:24 PM	#3
JIM THEO Senior Member Join Date: Feb 2018 Drives: BRZ 2018 Location: Greece Posts: 498 Thanks: 119 Thanked 142 Times in 99 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Subaru and Toyota suggest higher viscosity for heavy use while STI sells 5W40 as an upgrade oil, they know more than what we know about our engines! I use Redline 5W30 for spirited driving and is the thickest oil in this viscosity with very high HTHS.

10-15-2018, 02:09 AM	#5
mixxxx Senior Member Join Date: Aug 2014 Drives: BRZ Location: California Posts: 137 Thanks: 183 Thanked 178 Times in 78 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	You need a better oil cooler. Jackson Racing and Greddy are popular for 86Cup participants whether Stock, NA or Boosted See data below All OE Engine Jackson Racing Oil Cooler Motul 300v 0w-20 Streets CCW Avg Ambient: 90f Max Coolant: 203f Max Oil: 221f Laguna Seca Avg Ambient: 80f Max Coolant: 199f Max Oil: 226f Buttonwillow Avg Ambient: 110f Max Coolant: 212f Max Oil: 232f

10-15-2018, 05:34 AM	#6
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,561 Thanks: 8,941 Thanked 14,211 Times in 6,854 Posts Mentioned: 970 Post(s) Tagged: 14 Thread(s)	You need a proper oil cooler. PM me. We can discuss your needs more.

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