Red Line 75W90, 7.9k mi OCI, 110k mi, Cadillac CTS-V

[Emperors6]

All mileage is in kilometers not miles.

Notes from oil slip: "Street use plus winter autocross. Nothing else to report."

Previous fill was the same as this.

 

[Revving2Redline]

Use it again and see if it gets better.Looks promising !

 

[Y_K]

Thank you for sharing. Has anybody you know ever tried RL 80W-140 in these?