Mocal are ok, but retain the OEM cooler as it also warms up the oil faster, keeping your engine healthy for longer. When did you last change the oil? Sort the root issue before attacking the symptoms.
wanna put an oil cooler on the mk2 saw 104 on th` mfa the other day on the motorway, ok it was at 110 but still i wanna put one on, but dont know where to start. any ideas.