That doesn't sound right to me. The PCM is programed for the longer burn of a higher grade gasoline. With only 89 Octane the car should run like s**t.
99 CSVT Green/Tan 13,700Km
# 84 of 2760
For Sale
96 Contour GL 2.5 ATX 120,000Km
K&N Air Filter
Mobile 1
E1 SVT Wheels & BFG G-Force Rubber
Aluminum Painted Front Grill
| 
