Oil advice for modifiers and track addicts!

[Mr.Crossfire]

How about oil temp, I've heard/read somewhere that over 130 deg C oil temp is bad for oil. Something about the chemical structure being broken down etc. In my Audi 90 I have oil temp rising to 130 when going around the track. It never goes higher, but I have been wondering if I should change oil more frequently, as it sees such high temperatures for prolonged periods?

[oilman]

130degc sump temp is high and the average oil will buckle. You need something upto the job such as a 10w-50 or 15w-50 ester based synthetic oil.

Cheers

Guy