Originally Posted by Diver
My car now has 1500 miles on it so I have had a chance to thrash it a bit. Compared to my last 135i without PPK, this one is definitely faster and by a chunk. 40 to 80 mph is almost a leap. The weather here has been exceptionally hot, 107F two days ago. Oil temps do not exceed 240F. Even with AC and searing temps this thing runs.
Agreed 100%. Sometimes I gain 40 miles without even noticing, and all of a sudden, I'm going 100mph, lol. My temps always stick to 240 on hot days, but I haven't seen them go over 250. Safe to say the N55 is quite good for not overheating.