Hi Phil,
As mine sits at 115C I must be doing track work on the street.
As long as the
oil is performing at this temp and the fact that I change it every 4,000 kms I am not too concerned about adding an
oil cooler.
Unless I'm dumb (which is a possibility) I have found it hard to find out what the recommended running temperature range is for different oils.
It seems Penrite is proving to be popular, but what is its maximum safe operating temperature before things start breaking down?