Elevated oil temps of 230°F? That's what my wife's car sees cruising. Endurance race cars see much higher than that. In NASCAR, it's 280-290°F sump temp and 350-360°F bearing temp stretched out at Daytona and Talladega. Late Models and Sprints are 300+°F. The lower level bombers and stockers are hitting 280°F (with 5W-20 oil). If you're only seeing 230°F oil temp on a long straight, you're likely letting a lot more air into the front bumper than you need to and giving up speed. Considering most racing oils hit their peak CoF around 300°F, you're leaving power on the table there as well.