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Looking at minimum oil pressure readings from the PDR file. Oil temp 275, minimum oil pressure on
in-lap is 8 to 12 psi. This was running 0-40 Mobile 1 oil. Again this was at VIR air temp in the 90's and oil temp in the pdr data file is 275 for the same lap. Pressure during the first 7 laps was 35 to 42 psi and oil temperatures were as high 283.
This is a 2029 GS, stock LT1. Any one have the PDR data for thier car?
Not getting any low oil pressure lights or codes.
Last edited by kb's toy; Sep 13, 2025 at 10:45 PM.
Never saw oil pressure that low. The below is representative from when my car was stock. This was at the now torn-down Auto Club Speedway in CA. 150 top speeds, very fast track overall
I'd think about a better oil and a larger radiator. Driven or Amsoil. I use Amsoil. The second pic is from this past Wed at MSR-Cresson in TX. 95*+ outside temps. Not as fast but lots of 3rd gear >6000rpm. Fully built 416, larger radiator, 570whp
My last track day I saw 19psi on my in-lap. Fresh Mobil 1 0w-40. Similar oil temps as you and mid 90s air temp. I don't have the data during the session. Pressure was back up to 35psi for the next session after cooling down. I started doing a cool down lap between a handful of hot laps to keep and temps down and didn't see the oil pressure drop that low again. Changed the oil when I got home since oil is cheap compared to engines.
This is data from my car taken last fall at VIR and at about the same date.
The ambient temp that day was probably in the low 80s. This is with 0W40 SuperCar oil. The biggest difference I found between the Mobil1 15W50 oil and the Mobil1 0W40 Supercar oil is the supercar oil seems to drop the engine temperature about 5 degrees.
Track oil pressure
