Originally Posted by nospam
I didn't realize this. Oil temp gauge is a must for driving hard with a boosted engine. Does the 28i have the same oil cooler as the 35i?
No, the N20 does not have an external oil cooler like the N55 does:
The 28i cars also don't have an oil temp gauge (or coolant temp). Silly, I'm not sure why BMW doesn't include them for the N20.