Oil Coolers

[karbonkid]

Actually, I know of a couple of M3/ CSL specialists that run OEM oil coolers even on their race cars. One running completely standard and the other with thermostat blank. So even in the most extreme cases some dont upgrade oil coolers.

[Mike RT4]

I see about 120-123 on track everytime. Which is why I was looking into oil coolers, but it seemed like nobody had ever put an oil cooler on a non race car M3 despite these temps. Oil coolers for the M3 are also 2 or 3 times the price of the average car aswell, unless you can make your own kit, and I wouldn't know where to start.

That seems okay to me (providing a suitable quality oil is used). In my Escort I use Titan Pro R 15w50, which is shear stable to 130+deg.

In 30 deg ambients, I see similar temps that you're seeing. I just change the oil regularly.

Ideally, you want to see 110 deg on a regular basis (so that any water that builds up from the condensation process is evaporated).

[Graham]

Graham

A few CSL have a/m oil coolers such as Turner and HPF etc.

£500 oil cooler though. Wow!

That seems okay to me (providing a suitable quality oil is used). In my Escort I use Titan Pro R 15w50, which is shear stable to 130+deg.

In 30 deg ambients, I see similar temps that you're seeing. I just change the oil regularly.

Ideally, you want to see 110 deg on a regular basis (so that any water that builds up from the condensation process is evaporated).

You're the first person that doesn't own an M3 to tell me it's ok, everyone else nearly faints when I tell them!!

I use Castrol 10/60 as recommended for M engines. It gets changed every 7k miles

[0-60motorsports]

I have the Bimmerworld Oil Cooler on my car. Excellent quality and fit.

[Mike RT4]

£500 oil cooler though. Wow!

You're the first person that doesn't own an M3 to tell me it's ok, everyone else nearly faints when I tell them!!

I use Castrol 10/60 as recommended for M engines. It gets changed every 7k miles

I wouldn't do it on a mileage basis, I'd change it after every second track day....