Join Date: Aug 2005
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanked 1 Time in 1 Post
I certainly noticed a difference a few years back when i had an bmw m3 3.2 evo.
these cars were meant to run on 98 octane, bute super unleaded was 97. when optimax came out with its octane 98 rating, i certainly noticed an increase in torque.
used the same fuel in my alfa 166 3.0 and noticed no difference.
it does seem to depend very much on the car.